why so much space in the solar system?
Answers
Answer:
To avoid collision, you know.
Answer:
because
Explanation:
if we didn't have space in the solar system then all of the planets would be squished together.
Related Questions
Un prisma rectangular con un volumen de 80 m^3 se sumerge hasta la mitad en agua, calcular la fuerza de empuje que recibe.(rho_(del agua)=1000 kg/m^3)
Answers
Answer:
400 kN
Explanation:
El principio de Arquímedes establece que, cuando un cuerpo está total o parcialmente sumergido en un fluido, experimenta un empuje hacia arriba que es igual al peso del fluido desplazado.
Dado que;
Volumen del bloque = 80m ^ 3
Densidad del agua = 1000 kg / m ^ 3
Empuje hacia arriba = 1/2 * 80 * 1000 * 10
Empuje hacia arriba = 400 kN
what device was used to measure the magnetic field intensity, allowing scientists to study the magnetic properties of rocks?
Answers
Magnetometers are frequently used to measure the Earth's magnetic field, conduct geophysical surveys, find different kinds of magnetic anomalies, and calculate the dipole moment of magnetic materials.
How is a magnetic field's strength determined?To measure the magnetic field at a specific location in space, a magnetometer, also known as a gaussmeter, is employed. The magnetic field's direction can also be measured by some devices. Since their invention in the middle of the nineteenth century, these devices have developed into precise, accurate measurement tools.
The magnetometer, also referred to as a magnetic sensor, is a vital sensor used in all kinds of aircraft and spacecraft to measure magnetic induction (magnetic field intensity).
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before bioelectrical impedance analysis is performed, the subject should _____.
Answers
Before bioelectrical impedance analysis is performed, the subject should not consume food or liquid, especially alcohol, for 4-6 hours before the test.
The subject should also empty their bladder before the test to avoid measurement inaccuracies. The person being tested must also avoid exercising or smoking for 4-6 hours before the test. The test should be done while lying down in a supine position with limbs separated for 5-10 minutes to enable the electrical charges to distribute throughout the body.
Bioelectrical impedance analysis (BIA) is a non-invasive method of measuring the body's fat, water, and muscle composition. BIA can be done with a handheld device or with electrodes placed on the feet, hands, or other parts of the body. Before the test is performed, it is important to follow some guidelines to ensure accurate results.
1. The subject should avoid eating or drinking anything, especially alcohol, for 4-6 hours before the test. This is to prevent fluid changes in the body that could affect the accuracy of the measurements.
2. The subject should avoid exercising or smoking for 4-6 hours before the test. Exercise and smoking can cause changes in the body's fluid balance that could affect the accuracy of the results.
3. The subject should empty their bladder before the test to prevent measurement inaccuracies. A full bladder can affect the results of the test.
4. The subject should lie down in a supine position with their limbs separated for 5-10 minutes before the test. This allows the electrical charges to distribute throughout the body, which ensures accurate measurements.
To ensure accurate results, it is important to follow certain guidelines before bioelectrical impedance analysis is performed. The subject should avoid eating or drinking anything for 4-6 hours before the test, avoid exercising or smoking for 4-6 hours before the test, empty their bladder before the test, and lie down in a supine position with their limbs separated for 5-10 minutes before the test. Following these guidelines will help ensure that the results of the test are accurate and reliable.
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19. In an earthquake, most deaths are caused by. .
A. Ground waves
B. Liquefaction
C. P waves
D. Damage to buildings
Answers
Answer:
ground Waves
Explanation:
A football player pushes a 590 n tackling sled. his coach observes this and believes that this is too light and wants to present the player with a greater physical challenge. he asks two players (player a weighs 100 kg and player b weighs 125 kg). the coefficient of static friction between the sled and grass is 0.70. how much force must the player exert to start the tackling sled in motion with players a and b on it
Answers
The player has to apply a force of 1956.5N to start tackling sled in motion.
Coefficient of static friction μ\(_{s}\) = 0.70
Weight of sled = mg
= 590N
Weight of Player A = \(m_{a}g\)
= 100 × 9.8
= 980N
Weight of Player B = \(m_{b}g\)
= 125 × 9.8
= 1225N
Combined weight of sled:
W = (590+980+1225)N
= 2795N
Now, friction on sled:
f = μ\(_{s}\)R
= 0.70 × 2795
= 1956.5N
Therefore, the player has to apply force equal to static friction to start tackling sled in motion.
∴ Force = Static friction = 1956.5N
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The star Aldebaran is cooler and much more luminous than the Sun. Where do you expect to find Aldebaran in the H-R diagram?
a. Top left
b. Top right
c. Center
d. Bottom right
e. Bottom left
Answers
Aldebaran is expected to be found at the top right of the H-R diagram. Correct answer is option b.
The H-R diagram plots stars according to their surface temperature and luminosity. As Aldebaran is cooler than the Sun but much more luminous, it would be placed in the top right of the diagram, in the red giant region. This region is where stars with low surface temperatures and high luminosities are found. This is because red giants have exhausted their core hydrogen and expanded their outer layers, resulting in a cooler surface temperature but a much larger size, leading to a higher luminosity.
The Sun, on the other hand, is classified as a main-sequence star, which is where stars with moderate surface temperatures and luminosities are found. Therefore, Aldebaran's position on the H-R diagram reflects its unique characteristics as a cooler but more luminous star.
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As the
also increase.
_applied to a circuit increases, the power and the current
Answers
As the voltage applied to a crcuit increases, the power dissipated by the circuit, and the current flowing through the circuit, both also increase.
Answer:
voltage
Explanation:
HELP ASAP
A. 1.09 A
B. 1.20 A
C.0.910 A
D. 0.830 A
Answers
Answer:
The answer should be: 1.20 A
Explanation:
In the following figure, the horizontal surface on which this block slides is frictionless. If the two forces acting on it each have magnitude F
Answers
When a block slides on a frictionless horizontal surface, two forces of equal magnitude, F, act on it. These forces can be explained using Newton's laws of motion.
According to the first law, an object will continue moving with a constant velocity unless acted upon by a net external force. In this case, the block is initially at rest, so the net force acting on it is zero. However, when the forces of magnitude F are applied, there is a net external force acting on the block, causing it to accelerate. This acceleration is described by the second law, which states that the net force acting on an object is equal to its mass multiplied by its acceleration. Therefore, the block will experience an acceleration when the forces of magnitude F are applied to it.
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How efficient is a pulley system if it enables you to lift a 600.0 Newton engine 0.600 meters if you exerted 35.7 Newtons of force while pulling 11.43 meters of rope?
Answers
Answer:
η = 0.882 = 88.2 %
Explanation:
The efficiency of the pulley system can be given as follows:
\(\eta = \frac{W_{out}}{W_{In}}\\\\\)
where,
η = efficiency of pulley system = ?
W_out = Output Work = (600 N)(0.6 m) = 360 J
W_in = Input Work = (35.7 N)(11.43 m) = 408.051 J
Therefore,
\(\eta = \frac{360\ J}{408.051\ J}\)
η = 0.882 = 88.2 %
The fact that you can get sunburned while in the shade is evidence of: A. infrared scattering B. infrared absorption C. ultraviolet scattering D. ultraviolet absorption
Answers
UV absorption refers to how a material or substance absorbs ultraviolet (UV) radiation. UV radiation consists of electromagnetic waves with shorter wavelengths than visible light, ranging from approximately 10 to 400 nanometers.
The correct answer is ultraviolet absorption. Even though you may be in the shade, ultraviolet (UV) rays can penetrate the atmosphere and cause skin damage, including sunburn. This is why it's essential to wear sunscreen even when you're not directly in the sun and to seek shade during peak hours when the sun's UV rays are strongest. The skin is overexposed to ultraviolet (UV) radiation. Infrared scattering refers to the phenomenon where infrared radiation interacts with particles or molecules in a medium and changes its direction. Infrared (IR) radiation has longer wavelengths than visible light and is commonly associated with heat.
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What is the average velocity of an object that moves from 7.3 cm to 4.1 cm relative to the origin in 2.5 s
PLEASE HELP ME I DONT WANT TO FAIL
Answers
Answer:1 7/25
Explanation:take the total distance7.3-4.1 then divide by the total time taken
The average velocity of the object is equal to -1.28m/s relative to the origin when it moves for 2.4 seconds.
What is average velocity?Average velocity is a vector quantity and is defined as the change in position (∆x) divided by the time intervals (∆t) in which it occurs. The average velocity can be positive or negative and the S.I. unit of average velocity is m/s.
The average velocity of an object = ∆x/∆t
The average velocity of an object involves only the displacement of the object. However, the magnitude of the displacement of an object can be different from the actual path length.
Given, the displacement of the object = final position - initial position
∆x = 4.1 - 7.3 = -3.2m
The time, ∆t = 2.5 - 0 = 2.5 s
The average velocity of the object = ∆x/∆t = -3.2/2.5 = -1.28 m/s
Therefore, the average velocity of the object is -1/28 m/s relative to origin.
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what is the spring constant value in terms of load extension
Answers
The spring constant, also known as the stiffness constant, is a measure of the resistance of a spring to being deformed when a force is applied to it. It is denoted by the symbol "k" and has units of N/m in the SI system.
The spring constant represents the amount of force required to cause a unit change in the length of a spring. Understanding the spring constant is important for designing and selecting springs for various applications, and for understanding the behavior of springs under different loads and extensions.
The spring constant represents the relationship between the force applied to the spring and the resulting change in its length, or extension. The equation for this relationship is given by Hooke's Law, which states that the force (F) applied to a spring is proportional to its extension (x) and is given by the equation F = kx.
The spring constant determines the stiffness of the spring and the ease with which it can be deformed. Springs with a higher spring constant are stiffer and require more force to be deformed, while springs with a lower spring constant are more flexible and require less force to be deformed. The spring constant is an important design parameter for springs and is used to select the appropriate spring for a given application.
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Two trucks that appear to be identical collide on an icy road. One was originally at rest. After the collision that trucks are stuck together and move with more than half the original speed of the moving truck. What can you conclude about the loads of the two trucks? Explain.
Answers
Answer:
The trucks must have equal masses that is they must have same load.
Explanation:
Momentum refers to the product of the mass of the object and velocity.
As momentum has both magnitude and direction, it is a vector quantity.
In the given problem, it is given that after the collision, the trucks move at more than half the original speed of the moving truck. Therefore, the trucks must have equal masses that is they must have the same load.
What is the wavelength of a wave?
Answers
Definition: Wavelength can be defined as the distance between two successive crests or troughs of a wave.
What would make oppositely charged objects attract each other more? increasing the positive charge of the positively charged object and increasing the negative charge of the negatively charged object decreasing the positive charge of the positively charged object and decreasing the negative charge of the negatively charged object increasing the distance between the positively charged object and the negatively charged object maintaining the distance between the positively charged object and the negatively charged object
Answers
Answer:
A.
Explanation:
I did the test :D
Consider the causal LTI system with impulse response h(t) = u(t). Prove that this system is an integrator, i.e., the output of the system is the integral of the input. X(t) 1 2 t t(2-t) 0 h(t) 1 b 1 21 Figure 1: Input function and impulse response
Using the input and impulse response given in Fig.1, find and sketch the output calculating x(t) * h(t). You can either use the integral definition of the convolution or the Reflect-and-Shift approach.
Answers
The impulse response of the LTI system is h(t) = u(t).Let's find the output for the given input and impulse response using the integral definition of the convolution, given as follows:x(t) h(t) = ∫x(τ)h(t-τ)dτWe have to consider two cases when t < 0 and t ≥ 0.
Case 1:
When t < 0x(t) h(t) = ∫x(τ)h(t-τ)dτWhen t < 0, h(t - τ) = u(t - τ) = 0 for all τ > t. Therefore, for this range of t, x(t) h(t) = 0.Case 2:
When t ≥ 0x(t) h(t) = ∫x(τ)h(t-τ)dτ= ∫x(τ)u(t-τ)dτSince u(t - τ) = 1 for τ ≤ t and u(t - τ) = 0 for τ > t, we can split the integral into two parts:x(t) h(t) = ∫x(τ)u(t-τ)dτ= ∫x(τ)u(t-τ)dτ + ∫x(τ)u(τ-t)dt= ∫x(τ)u(t-τ)dτ + ∫x(t-τ)u(τ)dτ= ∫0tu(τ)x(t-τ)dτ + ∫t∞u(τ)x(t-τ)dτ= ∫0tx(t-τ)dτAs the function x(t) is given,we can evaluate the integral:
x(t) h(t) = ∫0tx(t-τ)dτ= ∫0t(2-τ)dτ= 2t - t²/2Let's plot the graph of the output function using the given input and impulse response:Graph of the output functionAbout Impulse ResponseIn signal processing and control theory, the impulse response, or impulse response function, of a dynamic system is its output when presented with a brief input signal, called an impulse. More generally, the impulse response is the reaction of any dynamic system in response to some external change.
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a pulling force carried by a rope is called what
Answers
Answer:
The pulling force that acts along a stretched flexible connector, such as a rope or cable, is called tension, T. When a rope supports the weight of an object that is at rest, the tension in the rope is equal to the weight of the object: T = mg.
Explanation:
Select all the correct answers.
An unmanned spacecraft leaves for Venus. Which statements about the spacecraft's journey are true?
O
The weight of the spacecraft keeps changing.
The mass of the spacecraft keeps changing.
The weight of the spacecraft remains the same.
The mass of the spacecraft remains the same.
The gravitational pull on the spacecraft remains the same.
Answers
An unmanned spacecraft leaves for Venus. The statements, The weight of the spacecraft keeps changing and The mass of the spacecraft remains the same. This 2 statements A and D are true.
What is Spacecraft ?A spaceship is a machine or vehicle built to travel through space. Spacecraft are a form of artificial satellite utilised for a wide range of tasks, such as communications, Earth observation, meteorology, navigation, space colonisation, planetary exploration, and freight and person transfer. All spacecraft, with the exception of single-stage-to-orbit vehicles, need a launch vehicle (carrier rocket) to get into space.
A spacecraft that is performing a sub-orbital spaceflight launches into space and then lands without gaining enough momentum or energy to complete a full orbit of the Earth. Spacecraft enter confined orbits around the Earth or other celestial bodies for orbital spaceflights. Only humans are carried on human spacecraft either as crew or guests from launch or while in orbit (space stations).
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Which of the following would require more energy to heat it from 10°C to 20°C?
a. 200 kg of water
b. 200 kg of aluminum
C. 100 kg of steel
Answers
Answer:200kg of water
Explanation:
please answer withhin 400 words
Question 52 (8 points) Using schematics, draw and fully describe with labels and descriptive text a horizontal cross section of a warm front and a cold front for a mid-latitude low pressure system at
Answers
The slope of a cold front is steeper than that of a warm front.
A warm front and a cold front are two different fronts associated with a mid-latitude low-pressure system. A cross-sectional view of these fronts can be helpful in better understanding their characteristics and structure. Let's take a look at the horizontal cross-section of these fronts:
Image showing the Horizontal Cross section of a warm front and a cold front for a mid-latitude low pressure system:
The 150 isobar is shown in bold.
The vertical structure of a warm front:
In a mid-latitude low-pressure system, a warm front represents the leading edge of a warm, moist air mass as it approaches a region of cold, dry air. In general, the warm air moves toward the cold air in the form of a low-level wedge. The warm front is associated with a gradual decrease in temperature and pressure as one moves from the warm side to the cold side of the front. The steepness of the frontal slope is gradual. The slope is gradual because the warm air rises over the cool air.
The vertical structure of a cold front:
A cold front represents the leading edge of a cold, dry air mass as it advances toward a region of warm, moist air. It is usually associated with a line of clouds, precipitation, and thunderstorms. The frontal slope is steeper than that of a warm front, with a temperature drop of several degrees Celsius per kilometer of ascent. The cold air moves in a downward motion to the ground and forces the warm air up. This motion creates clouds, precipitation, and sometimes thunderstorms. Therefore, the slope of a cold front is steeper than that of a warm front.
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hey can anyone help me out in dis rq!!
Answers
Answer:
q+13
Explanation:
Please HELPPPP!!! Describe the frequency and wavelength range of this type of electromagnetic wave. IM uses X-Ray which uses Ionizing radiation.
Answers
The frequency range of electromagnetic waves of X-ray is 3 ×10¹⁶ Hz to 3 ×10¹⁹ Hz. The wavelength range of electromagnetic waves of X-ray is 0.01 nm t0 10 nm.
What is the electromagnetic spectrum?The electromagnetic spectrum of electromagnetic waves can be described as the range of frequencies of electromagnetic radiation and its wavelengths and photon energies. The electromagnetic spectrum have range from one Hertz to above 10²⁵ Hertz.
The wavelength of electromagnetic radiation lies in between 380 to 760 nm and is detected by the human eye and characterized as visible light.
Electromagnetic waves of each frequency band are known by different names; starting at the low frequency (long wavelength) end of the spectrum these are radio waves, microwaves, infrared (IR), visible light, UV, X-rays, and gamma rays at the high-frequency (short wavelength) end.
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A line graph usually reveals a relationship between which factors
Answers
Answer:
variables on the horizontal and vertical axis (slope, outliers, +/- correlation, etc)
Explanation:
Which of the following best describes the circuit shown below?
A) series
B)open
C)parallel
D)short
Answers
Answer:it is b i just did this
Explanation:
Answer: i think its b hope this helped :)
Explanation:
A woman rolls a 8 kg bowling ball with an initial velocity of 10 m/s down a 20 meter tall hill. If the ball
rolls down the hill, then up a 5 meter tall hill, what is the velocity of the ball when it reaches the top of
the second hill?
Answers
Answer:
The first step is to calculate the potential energy of the ball at the top of the first hill using the formula PE = mgh, where m is the mass of the ball, g is the acceleration due to gravity, and h is the height of the hill. PE = (8 kg) x (9.8 m/s^2) x (20 m) = 1568 J Next, we can use the law of conservation of energy, which states that the total energy of a closed system remains constant. This means that the potential energy at the top of the first hill must be equal to the kinetic energy at the bottom of the hill, since there is no external work done on the ball. So, using the formula KE = 1/2mv^2, where v is the velocity of the ball, we can solve for v: KE = 1
Which best explains why water boils in a pot sitting over fire? Heat energy is created from the thermal energy in the air. Heat energy is transferred from the water to the fire. Thermal energy from the fire moves to the water in the form of heat. Thermal energy from the surrounding air moves to the water.
Answers
Answer:
Because of the heat that contains of the fire anf it make it boil because of the atmosphere that has form
Answer:
C. Thermal energy from the fire moves to the water in the form of heat.
Explanation:
PLs HELP
The gravity in space is the same as the gravity on Earth
True
False
Answers
Answer:
false
Explanation:
The gravity in space is not the same as the gravity on Earth
Newton's First Law of
Motion
Answers
Answer:
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force
Answer:
An object in motion will stay in motion unless acted on by an unbalanced force.
An object at rest will stay at rest unless acted on by an unbalanced force.
An object in motion will stay in motion, and an object at rest will stay at rest unless acted on by an unbalanced force
(There are three parts to Newton’s First Law of Motion)
a 1000kg car moving at 23.9 m/s on a flat road slams on the brakes and skids to a stop. the coefficient of kinetic friction between the road and car tires is 0.739. how many meters does the car go before it comes to a complete stop? (hint: think of work-energy theorem, and friction equation)
Answers
The car will skid to a stop after traveling approximately 80.5 meters.
To solve this problem, we can use the work-energy theorem and the equation for friction. The work done by the frictional force is equal to the change in kinetic energy of the car:
W_friction = ΔKThe work done by the frictional force is equal to the force of friction times the distance traveled:
W_friction = F_friction * dThe force of friction is equal to the coefficient of friction times the normal force, which is equal to the weight of the car:
F_friction = μ * m * gSubstituting these equations and solving for d, we get:
d = (K_i - K_f) / (μ * m * g)where K_i is the initial kinetic energy of the car, which is equal to (1/2) * m * v², and K_f is the final kinetic energy of the car, which is equal to 0.
Plugging in the given values, we get:
d = (1/2 * m * v²) / (μ * m * g)= (1/2 * v²) / (μ * g)= (1/2 * 23.9²) / (0.739 * 9.81)≈ 80.5 metersTo learn more about work-energy theorem, here
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