Answer:
both magnitude and direction
Explanation:
The worker's pull on the handle of the cart is best described as the force having both magnitude and direction.
This is a vector quantityThe force is channeled to move the cart in a specific direction. Also, the pull on the cart can be quantified, and so it have magnitude. Most physical properties either have magnitude or direction or both.In this case, the worker is pulling the cart towards a specified direction.
Therefore, the fitting choice is both magnitude and direction.
88. A student varied the length of a simple pendulum and measured its period, which is the time required to complete one cycle of motion. In this experiment, time represents the variable that is
(1) dependent and graphed on the
horizontal axis
(2) independent and graphed on the
horizontal axis
(3) dependent and graphed on the vertical axis
(4) independent and graphed on the
vertical axis
In this experiment, time represents the variable that is independent and graphed on the horizontal axis.
The period of the pendulum does not depend on the mass of the sphere, only on the length of the chord. Two pendulums with different masses but the same length have the same period. Two pendulums of different lengths have different periods with the pendulum with the longer string having a longer period.
For small deflections of less than 15 degrees, the pendulum experiences simple harmonic oscillations. This means that its restoring force is directly proportional to its deflection. A simple pendulum is called a simple pendulum. The longer the pendulum is, the longer it will take to travel the distance it swings from side to side. The period of a pendulum is the time it takes for the weight to swing and return to its original position so it means a longer period.
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explain how potential and kinetic energy are at play when we talk about Newton's second law of motion
Potential and kinetic energy are at play when we talk about Newton's second law of motion through the various positions in relation to the bodies involved.
What is Newton's second law of motion?This law states that force is equal to the rate of change of momentum and is denoted as F = mv where m is mass and v is velocity.
Potential energy is the energy is possessed by a body by virtue of its position while kinetic energy is possessed by a body by virtue of its motion. Both forms of energy are influenced by forces and are equal to the total momentum.
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A projectile is to be launched at an angle of 30° so that it falls beyond the pond of length 20 meters as shown in the figure.
a) What is the range of values of the initial velocity so that the projectile falls between points M and N?
Answer: A
Explanation:
I want my points so yea
how to make 3d soft body objects interact pressing against the surface of each other increase friction
The way to make 3d soft body objects interact pressing against the surface of each other increase friction is given below
How do you bring about the friction?The way to make 3d soft body objects interact pressing against the surface of each other increase friction is by:
In your 3D modeling or animation software, select the objects that you want to be soft bodies.In the properties or settings for the objects, enable the "soft body" option. This will allow the objects to deform and interact with each other in a more realistic way.In the soft body settings, increase the friction coefficient between the objects. This will make it so that the objects resist sliding against each other more when they press against each other.You can also adjust the stiffness of the objects to control how much they deform when they press against each other. Increasing the stiffness will make the objects less deformable, while decreasing the stiffness will make them more deformable.Finally, you can use the simulation settings to control how the objects interact with each other and with the environment. For example, you can increase the strength of the gravity force to make the objects more prone to pressing against each other, or you can add forces such as wind or explosions to make the objects interact in more dynamic ways. These steps should help you create more realistic and interactive soft body objects in your 3D models or animations.Learn more about friction from
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A soccer ball is moving horizontally at a speed of 4.0 m/s. It then undergoes a constant acceleration. After 8.00 s, the ball is moving at 4.8m/s. What is the ball's displacement?
Answer: 0.0 m/s
Explanation
. a diverging lens has a focal length that has a magnitude of 33.0 cm. an object is placed 21.0 cm in front of this lens. calculate the magnification.
A diverging lens has a focal length that has a magnitude of 33.0 cm. an object is placed 21.0 cm in front of this lens. The magnification will be -12.833 cm
diverging lens = concave lens
focal length = - 33 cm
u = - 21 cm
magnification = image distance / object distance
using lens formula
1/v - 1/u = 1/f
1/v = 1/f + 1/u
= 1/-33 -1/21
v = -12.833 cm
A diverging lens has a focal length that has a magnitude of 33.0 cm. an object is placed 21.0 cm in front of this lens. The magnification will be -12.833 cm
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where do the collecting ducts of the renal tubules drain?
The collecting ducts of the renal tubules drain into the renal pelvis, which is a funnel-shaped structure located at the center of the kidney.
From there, the urine travels through the ureter to the bladder for storage until it is eliminated from the body through urination. The funnel-shaped, dilated portion of the ureter in the kidney is known as the renal pelvis or pelvis of the kidney. It is created by the large calyces coming together, and it serves as a conduit for urine to move from the major calyces to the ureter. It has a mucous membrane, transitional epithelium covering it, and a lamina propria of loose to dense connective tissue underneath. Along with the other elements of the renal sinus, the renal pelvis is located there.
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Jerry measures the time it took for a ball dropped from a balcony to hit the ground. His stopwatch reads 2.6 s. How high is the balcony?
Answer:
33.12m
Explanation:
Given parameters:
Time of fall = 2.6s
Unknown:
Height of the balcony = ?
Solution:
To solve this problem; use this expression:
H = ut + \(\frac{1}{2}\) gt²
u is the initial velocity
t is the time
g is the acceleration due to gravity = 9.8m/s²
So;
H = (0 x 2.6) + ( \(\frac{1}{2}\) x 9.8 x 2.6²) = 33.12m
This is a sign of a chemical reaction that involves a new color being created during the reaction.
Answer:
The five conditions of chemical change: color change, formation of a precipitate, formation of a gas, odor change, temperature change.
what is the critical angle? . the angle of incidence at which the reflected light is polarized b. the angle of incidence at which total internal reflection occurs c. the angle of incidence at which no reflection occurs d. 48 degrees
The critical angle is b. the angle of incidence at which total internal reflection occurs. This means that at this angle, no light is transmitted through the interface, and all the incident light is reflected back into the first medium.
The critical angle is the angle of incidence at which total internal reflection occurs.Explanation:When light travels from one medium to another medium of lower refractive index, it is bent away from the normal, which is called refraction. As the angle of incidence increases, the angle of refraction also increases.
At some point, the refracted angle reaches 90°, and the light travels along the boundary of the two mediums. This angle is called the critical angle. As the angle of incidence increases further, total internal reflection (TIR) occurs. TIR is a phenomenon in which all the incident light is reflected back into the first medium. TIR only happens when the angle of incidence is greater than the critical angle.
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HELP ASAP I WILL MARK RAINLIEST: To a stationary observer, a man jogs east at 6 m/s and a woman jogs west at 2 m/s. from the man's frame of reference, what is the woman's velocity?
I'm pretty sure it's NOT D
Answer:
8 m/s west
Explanation:
The man considers himself 'stationary'...all of the velocities are attributed to the woman....it will appear as though she is moving 6 + 2 = 8 m/s west
I already did part a and the magnitude for all the parts. I need help finding the direction.
b)
Given that,
A=10 N at 0°
B=20 N at 180°
As we can see these two vectors are in opposite directions.
Thus the resultant vector will be in the direction of the vector with the higher magnitude.
In vector addition we can write,
\(C=10\cos 0^0+20\cos 180^0\)Where C is the resultant vector.
Thus magnitude of R will be equal to,
\(R=-10\text{ N}\)The negative sign indicates that the direction of the C is along the negative x-axis.
Thus the magnitude of C is 10 N and the direction of the C is 180°
a)
Given,
A= 10 N at 0°
B=20 N at 0°
The the vector C is
\(C=10\cos 0^0+20\cos 0^0=30\text{ N}\)The direction of R will be along the direction of these two vectors, as they are in the same direction.
Thus the magnitude of the vector C will be 30 N and the direction of the vector C is 0°
c)
Given,
A=10 N at 180°
B=20 N at 180°
Thus the vector C is
\(C=10\cos 180^0+20\cos 180^0=-30\text{ N}\)The direction of the vector C will be along the direction of the negative x-axis, as these two vectors are along the negative x-axis.
Thus the magnitude of the vector C is 30 N and the direction of the vector C is 180°
d)
Given,
A= 10 N at 0°
B=20 N at 90°
The x-component of the vector C will be,
\(C_x=10\cos 0^0+20\cos 90^0=10\text{ }\hat{\text{i}}\)The y- component of C will be,
\(C_y=10\sin 0^0+20\sin 90^0=20\text{ }\hat{j}\)The magnitude of vector C is given by,
\(\begin{gathered} C=\sqrt[]{C^2_x+C^2_y}_{} \\ =\sqrt[]{10^2+20^2} \\ =22.36\text{ N} \end{gathered}\)The direction of the vector C will be,
\(\begin{gathered} \theta=\tan ^{-1}\frac{C_y}{C_x} \\ =\tan ^{-1}\frac{20}{10} \\ =63.43^0 \end{gathered}\)Thus the magnitude of C will be 22.36 N and the direction of C will be 63.43°
e)
Given that
A= 10 N at 90°
B=20 N at 0°
The x-component of the vector C will be
\(C_x=10\cos 90^0+20\cos 0^0=20\text{ }\hat{\text{i}}\)The y-component of the vector C will be
\(C_y=10\sin 90^0+20\sin 0^0=10\text{ }\hat{j}\)The magnitude of the vector C will be
\(\begin{gathered} C=\sqrt[]{C^2_x+C^2_y}_{} \\ =\sqrt[]{20^2+10^2} \\ =22.36\text{ N} \end{gathered}\)The direction of vector C will be,
\(\begin{gathered} \theta=\tan ^{-1}\frac{C_y}{C_x} \\ =\tan ^{-1}\frac{10}{20} \\ =26.56^0 \end{gathered}\)Thus the magnitude of the vector C will be 22.36 N and the direction of the vector C will be 26.56°
2) Who tested the theory "heat is just stuff moving around?"
Answer: James Joule
Explanation:
a concave mirror has a focal length f 20cm. what is the position in cm of the resulting image if the image is inverted and four times smaller than the project
When the concave mirror is to be placed very close to the given object, a magnified and the virtual image is obtained.
What is a concave mirror?A concave mirror is the mirror that is bent in middle towards the inside. Furthermore, looking in the mirror will give you the impression that you are looking in the cave. Furthermore, we must employ the mirror equation when dealing with a concave mirror.
A mirror is the object that reflects light at same angle as it receives it. In addition, the incident angle must equals the angle of reflection in a given mirror. Furthermore, the reflected light had the same intensity as the projected light.
Furthermore, there are three types of known mirrors.
Simple MirrorMirror with Concave SurfaceMirror with Convex SurfaceA concave mirror is a mirror that is to be bent in the middle towards the inside.For the given concave mirror,
f = -20 cm
M=v/u=2
⇒v=−2u
1st case (Virtual image)
1v+1u=1f
⇒12u−1u=1f
⇒12u=1f
⇒u=f2=10 cm
∴ The positions are 10 cm or 30 cm from the concave mirror.
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the anxiety disorders identified in the dsm-5 do not include:____
The anxiety disorders identified in the DSM-5 do not include obsessive-compulsive disorder (OCD).
The DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, 5th edition) is a widely used diagnostic reference for mental health professionals. It provides a standardized classification and criteria for diagnosing various mental disorders, including anxiety disorders.
The anxiety disorders that are explicitly listed in the DSM-5 include generalized anxiety disorder (GAD), panic disorder, specific phobia, social anxiety disorder (social phobia), separation anxiety disorder (in children), and selective mutism (in children).
However, obsessive-compulsive disorder (OCD) is not classified as an anxiety disorder in the DSM-5. Instead, it is considered a separate disorder categorized under the category of obsessive-compulsive and related disorders. While anxiety is often a component of OCD, the disorder is characterized by intrusive thoughts (obsessions) and repetitive behaviors (compulsions) rather than solely anxiety symptoms.
Obsessive-compulsive disorder (OCD) is not included in the anxiety disorders identified in the DSM-5. It is classified as a separate disorder under the category of obsessive-compulsive and related disorders.
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How many oxygen (O) atoms are in a molecule of SiO2?
O A. 1
OB. 3
C. 4
D. 2
Q. A toy car of mass 2kg moves down a slope of 250 with the horizontal. A constant resistive force acts upon the slope on the trolley. At t =0s, the trolley has velocity 0.50 m/s down the slope. At t-4s, velocity is 12 m/s down the slope.
a. Find acceleration of the trolley down slope. b. Calculate the distance moved by the trolley from t=0s to t=4s.
c. Show that component of weight of the trolley down the slope is 8.3N.
d. Calculate the resistive force.
Answer:
2kg×250=1122kg
Explanation:
You put thease 2 together and you will have this answer:1122kg
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A 10 g thread of wool was produced by Julitha Barber of Australia in 1989. Its length was 553 m. Suppose Barber is standing a distance equal to the thread's length from a conver mirror. If the mirror's radius of curvature is 1.20 × 102 'm, what will the magnification of the image be?
The magnification of the image of Julitha Barber produced by the converging mirror is 0.0979
To find the magnification of the image, we need to use the formula:
magnification = -v/u,
where v is the distance of the image from the mirror, and u is the distance of the object from the mirror. Since the object is Julitha Barber standing at a distance of 553 m, we can take u as -553 m (negative because the object is on the same side as the mirror).
Now, we need to find the distance of the image from the mirror (v). For this, we can use the mirror formula: 1/v + 1/u = 1/f, where f is the focal length of the mirror, and is equal to half the radius of curvature (f = R/2). So, in this case, f = 1.20 × 102 m/2 = 60 m. Substituting the values in the formula, we get:
1/v + 1/-553 = 1/60
Solving for v, we get v = -54.12 m. (Note that the negative sign indicates that the image is virtual and upright.)
Now, we can use the magnification formula to find the magnification of the image:
magnification = -v/u = -(-55.6)/553 = 0.0979 (rounded to one decimal place)
Therefore, the magnification of the image of Julitha Barber produced by the converging mirror is 0.0.0979. This means that the image is 10 times smaller than the actual object and is virtual and upright.
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Write equation including state symbols, for change of state from steam to water
currently, we do not know what most of the mass and energy in the universe is and, therefore, have no way of detecting them. T/F
The statement "currently, we do not know what most of the mass and energy in the universe is and, therefore, have no way of detecting them" is true.
The composition of most of the mass and energy in the universe is currently unknown, and our ability to detect them is limited. Dark matter, which is thought to make up a significant portion of the mass in the universe, does not interact with light or other forms of electromagnetic radiation, making it challenging to observe directly.
Dark energy, on the other hand, is an elusive form of energy believed to be responsible for the accelerating expansion of the universe, but its nature and origin remain mysterious. Scientists continue to study and develop theories and experiments to shed light on the nature of these elusive components and further our understanding of the universe.
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Two waves with Amplitude of 75 units and 74 units arrive at a point in a medium simultaneously. If the two waves are out of phase with each other what is the resultant amplitude of the wave
Answer:
Resultant amplitude = 1 unit.
Explanation:
The amplitude of a wave is its maximum displacement during propagation.
Since the two waves are out of phase, the resultant amplitude can be determine by;
Resultant amplitude, \(A_{R}\) = \(\sqrt{A_{1} ^{2} + A_{2} ^{2} + 2A_{1} A_{2}cos \alpha }\)
= \(\sqrt{(A_{1} - A_{2} )^{2} }\)
= \(A_{1}\) - \(A_{2}\)
where \(\alpha\) is the phase difference.
Given that: \(A_{1}\) = 75 units, \(A_{2}\) = 74 units, so that;
\(A_{R}\) = 75 - 74
= 1
The resultant amplitude of the two wave when out of phase is 1 unit.
Answer:
Resultant amplitude = 1 unit.
Explanation:
The amplitude of a wave is its maximum displacement during propagation.
Since the two waves are out of phase, the resultant amplitude can be determine by;
Resultant amplitude, =
=
= -
where is the phase difference.
Given that: = 75 units, = 74 units, so that;
= 75 - 74
= 1
The resultant amplitude of the two wave when out of phase is 1 unit.
A cart moving at a constant speed of 25 m/s possesses 438 J of kinetic energy what is the mass?
A cart moving at a constant speed of 25 m/s possesses 438 J of kinetic energy, and the mass of the car is 1.6 kg.
What is kinetic energy?The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object to accelerate it. We must put in the effort to apply force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.
What does "constant speed" refer to?Definition: When an object is moving at a constant speed—that is, its speed does not change—we say it is moving at a constant speed. steady rate
Given:
KE = 500 J
v = 25 m/s
The formula for Kinetic Energy is given:
KE = ½ mv²
where: KE - Kinetic Energy
m - mass
v - velocity
Substituting the value of KE and v in the formula,
500 J = (½)(m)(25 m/s)²
m = (500 J)(2)/(25 m/s)²
m = 1.6 kg
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how can briquette support to save fossil fuel?
Answer:
use a reusable source of energy such as hydro power
Explanation:
use renewable energy it saves the environment and does not create global warming
The starting velocity was 0 m/s, and the final velocity was -7.68 m/s. Based on this, what was the average velocity of the rock
Formula: v = s+f/2
v = average velocity
s = starting velocity
f = final velocity
Use what we are given and solve.
v = 0+(-7.68)/2
v = -7.68/2
v = -3.84
Best of Luck!
Please assist with writing a discussion and conclusion for this lab
report
Cover pace раде Due 10:00 7.3 EXPERIMENT 3: SIMPLE PENDULUM AIM: Determination of g from the Pendulum THEORY Intro Copy & Paste сору When the pendulum is at the top of its swing it is momentar
In this experiment, the aim was to determine the acceleration due to gravity (g) using a simple pendulum.
The theory behind a simple pendulum states that the period of oscillation is directly proportional to the square root of the length of the pendulum and inversely proportional to the square root of the acceleration due to gravity.
During the experiment, a pendulum was set up and the time taken for a certain number of oscillations was measured. The length of the pendulum was carefully measured, and the data was recorded. By analyzing the recorded data, the period of oscillation for the pendulum was calculated.
Using the derived formula for the period of a simple pendulum and the measured values, the acceleration due to gravity was calculated. Any sources of error or uncertainties in the experiment, such as air resistance or measurement errors, were identified and discussed.
The results obtained from the experiment were compared to the accepted value of the acceleration due to gravity. Any discrepancies or deviations were analyzed, and possible sources of error were evaluated.
Conclusion:
In conclusion, the experiment was successful in determining the acceleration due to gravity using a simple pendulum. The calculated value of the acceleration due to gravity was found to be close to the accepted value, indicating that the experiment was conducted accurately.
The findings of the experiment support the theory that the period of a simple pendulum is directly related to the square root of its length and inversely related to the square root of the acceleration due to gravity.
However, it is important to note that there might have been sources of error in the experiment, such as slight variations in the length measurement or air resistance affecting the pendulum's motion.
These factors could have contributed to any discrepancies observed between the calculated value and the accepted value of the acceleration due to gravity.
To improve the accuracy of future experiments, measures should be taken to minimize sources of error, such as using more precise measuring instruments and conducting the experiment in a controlled environment with minimal air disturbances.
Overall, this experiment provided valuable insights into the concept of the simple pendulum and its relationship to the acceleration due to gravity, demonstrating the principles of harmonic motion and the importance of precise measurements in experimental physics.
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A motorcycle traveling at 25 m/s accelerates at a rate of 6 m/s2 for 4 seconds. What is the final speed of the motorcycle in m/s?
Initial velocity = Vo= 25 m/s
Final velocity = V = x
Acceleration= a = 6 m/s^2
time= t = 4 seconds
Appy the equation:
V = Vo + at
Replacing:
V = 25 + 6(4) = 25 + 24 = 49 m/s
A 12kg cart rolling at 18m/s to the right collides with a 15kg cart that is at rest. after
they collide, the 15kg cart is moving to the right with a velocity of 5m/s. what is the
final velocity of the 12kg cart?
The final velocity of the 12kg cart is 11.75 m/s.
To find the final velocity of the 12kg cart, we can use the conservation of momentum principle. The total momentum before the collision is equal to the total momentum after the collision.
Initial momentum = Final momentum
Initial momentum of 12kg cart = (12kg)(18m/s)
Initial momentum of 15kg cart = (15kg)(0m/s)
Final momentum of 12kg cart = (12kg)(Vf) (where Vf is the final velocity)
Final momentum of 15kg cart = (15kg)(5m/s)
Now, we can set up the conservation of momentum equation:
(12kg)(18m/s) + (15kg)(0m/s) = (12kg)(Vf) + (15kg)(5m/s)
216 kg.m/s = 12kg(Vf) + 75 kg.m/s
Subtract 75 from both sides:
141 kg.m/s = 12kg(Vf)
Now, divide by 12kg:
Vf = 11.75 m/s
So, the final velocity of the 12kg cart is 11.75 m/s to the right.
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If you are in a freely falling elevator near the top of a tall building, as the elevator falls, your weight would be:
You would feel weightless in a freely falling elevator near the top of a tall building.
If you are in a freely falling elevator near the top of a tall building, the sensation of weightlessness would occur.
This is because in a freely falling elevator, the force of gravity is the only force acting on you, and it is acting equally on all objects in the elevator, including you.
Therefore, there is no normal force acting on your body to counteract the force of gravity, resulting in a feeling of weightlessness.
However, if the elevator were to suddenly come to a stop, you would feel a sharp increase in weight, as the normal force would come into play and counteract the force of gravity.
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Find the x and y components of each of the following vectors.
hyp = 15 m/s
theta = 150°
x = ?
y = ?
Answer:
x =
\( - 15 \times \frac{ \sqrt{3} }{2} \frac{m}{s} \)
y = 7.5m/s
A 50,0 g silver spoon at 20.0°C is placed in a cup of coffee at
90.0°C. How much heat does the spoon absorb from the coffee to
reach a temperature of 89.0°C?
The heat capacity of the silver spoon at the given temperature difference is 817.65 J.
Heat capacity of the silver spoon
The heat capacity of theb silver spoon is the quantity of heat absorbed by the silver spoon. The heat capacity of the silver spoon at the given temperature difference is calculated as follows;
Q = mcΔθ
where;
m is mass of the spoonc is specific heat capacity of silver = 0.237 J/g⁰CΔθ is change in temperatureQ = 50 x 0.237 x (89 - 20)
Q = 817.65 J
Thus, the heat capacity of the silver spoon at the given temperature difference is 817.65 J.
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