Since there's no air resistance, this is a problem in projectile motion. The goal is to find the point where the ball's parabolic trajectory intersects the incline. It is best to choose the xx-axis to be horizontal and direct to the right, the yy-axis to be vertical and direct to the up, and the origin to be at the point where the ball is fired. In the projectile equations, the launch angle α0α0 is measured from the horizontal. What is this angle in terms of θθ and ϕϕ?

Answer:

hey mate your answer is here

Placing the electromagnetic radiation in order from the lowest energy to the highest energy :  ( 2 ) C,A,B

In the electromagnetic spectrum the electromagnetic radiation with the shorter wavelength possess a higher energy while the electromagnetic radiation with a longer wavelength possess the lower energy.

The electromagnetic radiation as listed in the question with the longest wavelength is the radio waves therefore it possess the lowest energy while the radiation with the shortest wavelength is the gamma rays therefore it possess the highest energy.

Hence we can conclude that Placing the electromagnetic radiation in order from the lowest energy to the highest energy :  ( 2 ) C,A,B

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The initial temperature of the solid, the mass of the solid, the mass of the water in the cup, and the final temperature of the system are needed to solve for the heat capacity of a heated unknown solid when it is placed in a coffee cup calorimeter.

The heat capacity is the amount of heat required to raise the temperature of a system by one degree Celsius (or one Kelvin). When an unknown solid is heated and placed in a coffee cup calorimeter, the following values are needed to calculate its heat capacity: Initial temperature of the solid, Mass of the solid, Mass of the water in the cup, Final temperature of the system.

The calorimeter is used to measure the amount of heat gained or lost by the system (the solid and the water in the cup) during the process. The change in temperature of the system is used to calculate the heat gained or lost by the solid.

Therefore, the initial temperature of the solid, the mass of the solid, the mass of the water in the cup, and the final temperature of the system are needed to solve for the heat capacity of the heated unknown solid.

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12 x cos 50 = 7.713451316...

A dual voltage 3-phase motor can operate at two different voltage levels, typically referred to as the low voltage (LV) and high voltage (HV) settings. To connect a dual voltage motor in the high voltage configuration, a specific wiring scheme is required. Here's a brief explanation of the connection scheme:

Start by identifying the motor's voltage rating and make sure it is set to the high voltage setting.

The motor will have multiple sets of winding terminals labeled for different voltage levels. Locate the high voltage winding terminals.

Connect the three phases of the power supply to the corresponding phases of the motor winding. This is typically done using wire connectors or terminal blocks.

Make sure to connect the correct phase to the corresponding terminal (e.g., L1 to L1, L2 to L2, L3 to L3).

Verify that the connections are secure and properly insulated to prevent any electrical hazards.

Once the motor is connected, it can be energized using the high voltage power supply.

Always refer to the motor's manufacturer instructions and follow appropriate safety precautions when making electrical connections. It is recommended to consult a professional electrician or motor technician for specific guidance on wiring a dual voltage motor.

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Answer:

m - 200 kg

ti - 0⁰c

clF - 79,7kcal, kg ( calor latente de fusión)

pf - 0⁰c

formulas:

QL- cL.m

solución - Ap camosla ecqación.

QL- (79,7 kcal,kg) .200 kg

Resultado ,la cantidad de calor absorbe lamasa de hieloes

Q2 -15,940 kcal

Answer: b) - 8.0 \(m/s^{2}\)

Explanation: Acceleration is a vector indicating a rate an object's velocity changes over time:

a = \(\frac{v}{t}\)

and its SI unit is \(m/s^{2}\)

For the minivan to stop, it takes a period of 0.5s:

a = \(\frac{4.0}{0.5}\)

a = 8.0 \(m/s^{2}\)

As a vector, acceleration has magnitude (8\(m/s^{2}\)) and direction. Since it is stopping, the minivan has a direction opposite to the other car, which means acceleration is negative. So: a = \(- 8.0 m/s^{2}\).

Answer:

inverse square – strength decreases rapidly with distance

super magnet – very cold

magnetite – iron oxide

domain – a small region within a magnet

William Gilbert – De Magnete

electromagnet – man-made magnet

demagnetize – drop or hammer

lines of force – lines representing the strength and direction of magnetic field

Oersted – current-carrying wire has a magnetic field

Explanation:

You're welcome.

c. The amount of energy transferred between 2 groups of molecules at different temperatures.

Heat transfer is given with a difference of temperatures

The distance from the source to the reflector is approximately 171.5 meters when a sound wave leaves its source and is traveling through the air.

To determine the distance from the source to the reflector, we can use the speed of sound in air.

The speed of sound in air is approximately 343 meters per second at room temperature and normal atmospheric conditions.

Since the reflected wave returns 0.5 seconds later, it means that the sound wave traveled twice the distance from the source to the reflector.

Using the formula: Distance = Speed × Time, we can calculate the distance.

Distance = Speed of sound × Time

Distance = 343 m/s × 0.5 s

Distance = 171.5 meters

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Answer:

true

Explanation:

because the speed at which the object is moving in the circle depends on the effort used

Answer:

Any force greater than 24.5 N

Explanation:

To find the frictional force is the 1st step. this can be found by multiplying the coefficient of friction and the normal force. normal force can be found by multiplying gravity (we will say 9.8 m/s/s) and the mass which is 10. You then multiply the result by the coefficient of friction which is 0.25 and it leads us to an answer to 24.5 N. This means that if you pull with exactly 24.5 N, the sled wouldnt move. So you need a force greater than 24.5 N and we have our answer.

I hope I helped correct me if im wrong

A force of 25 N is necessary to pull a 10 kg sled across a horizontal surface at a constant velocity if the coefficient of kinetic friction between the sled and the ground is 0.25.

First, we will calculate the normal force (N), which, in a horizontal surface, has the same magnitude and opposite sense as the weight (W) of the sled.

\(|N| = |W| = m \times g = 10 kg \times \frac{9.8m}{s^{2} } = 98 N\)

where,

Then, we will calculate the friction force (f) using the following expression.

\(f = \mu \times N = 0.25 \times 98 N = 25 N\)

According to Newton's first law of motion, for the sled to move at a constant velocity, the sum of the force exerted (F) on the sled and the friction force (f) must be zero.

\(F + f = 0\\F = -f\\F = -25 N\\|F| = 25 N\)

A force of 25 N is necessary to pull a 10 kg sled across a horizontal surface at a constant velocity if the coefficient of kinetic friction between the sled and the ground is 0.25.

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Answer:

Explanation:

The sum of the pore along the plane is expressed according to Newton's law

Fn-Ff = ma

Fn is the moving force

Ff = nR = frictional force

m is the Mass

a is the acceleration

Substitute the given values

Fn - nR = ma

Fn - tan31°(mgcostheta) =3.9(9.8)

Fn - tan31(3.9(9.8)cos31) = 3.9(9.8)

Fn - tan31(38.22cos31)= 38.22

Fn - 32.76tan31 = 38.22

Fn-19.68 = 38.22

Fn = 38.22+19.68.

Fn = 57.90N

Hence Fn (moving force) of the inclined block is 57.90

Answer:

The gravitational potential energy of a squirrel is 53.312 J.

Explanation:

We have,

Mass of a squirrel is 0.68 kg

It is placed at a height of 8 m above the ground.

It is required to find the gravitational potential energy of a squirrel. It is possessed by an object due to its position. Its formula is given by :

\(E=mgh\\\\E=0.68\times 9.8\times 8\\\\E=53.312\ J\)

So, the gravitational potential energy of a squirrel is 53.312 J.

Answer:

helium, hydrogen, nitrogen, oxygen,iron,uranium,

Explanation:

there are 118 elements but here are some

Answer:

Glucose diffuse from the blood plasma, across the capillary walls to the tissue fluid, and then to the cell.

Glucose diffuse from the blood plasma, across the capillary walls to the tissue fluid, and then to the cell. The waste product urea diffuse from the cells of the liver to the tissue fluid, and then across the capillary walls into the blood plasma.

Answer:

jhon Dalton described it

Explanation:

hope it works out for you

if please mark brainiest

John Dalton described atoms as small spheres that could not be divided into anything smaller.

John Dalton is the scientist who described atoms as small spheres that could not be divided into anything smaller. He proposed his atomic theory in 1803, which included the postulate that all matter is composed of tiny, indivisible particles called atoms. D

Dalton's theory also stated that atoms of different elements are unique in their mass and chemical properties and combine in simple whole-number ratios to form compounds. Dalton's model of the atom was a solid, indivisible sphere that was the smallest possible unit of an element.

While this model has been refined and updated with new discoveries, Dalton's contributions laid the foundation for the modern understanding of atomic structure and chemical reactions.

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Answer:

a c d

Explanation:

yeet

Answer:

a c d

Explanation:

Yes, the number of asteroid samples a pods is carrying will make a difference. The number of asteroids carrying the pods will make a difference because the objects will differ in their million mass due to the number of pods present.

still, but the objects have the different million mass, the object with lower mass will have a lesser change in haste(velocity), If the same strength force is wielded on two objects. Forces affect stir because they can change an objects stir.

The number of asteroids carrying the pods will make a difference because the objects will differ in their million mass due to the number of pods present.

When the million mass of two objects differ, though the same strength of the force is wielded on both the million mass their haste changes as the million mass affect the haste of the object.

Still, they stop or their haste would be constant, If one of the object's mass is lesser than one also the lesser mass object will have further haste compared to the object with the lower mass and if million mass of both the object is the same.

Therefore, it is true that the number of asteroid samples a pod is carrying could make a difference.

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As the question depicts the trail is 10Km long but the end of the trail is 300m north from the beginning, Here the average velocity comes out to be 100m/hr.

Velocity is defined as the displacement covered by an object or a body in unit time interval.

From the problem, it is clear that the distance is 10Km but the displacement comes out to be 300m.

The time from 2:00 pm to 5:00 pm is a total of 3hours.

Now, the velocity is determined from the following formula

\(V=\dfrac{d}{t}\)

here,

d= displacement

t= time

So, by putting values in above formula we get,

\(V=\dfrac{300 m}{3 hrs}\)

\(V=100m/hr\)

So, the average velocity of Sofia is 100m/hr

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Answer:

Nikola Tesla was a Serbian-American inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current electricity supply system.

Answer:

attract the magnetic ratio engine light of rock level

a ) The resultant of these two forces is 715.92 N at 4.4° to the right of the forward dashed line

b ) If the car has a mass of 2850 kg, its acceleration is 0.25 m / s²

Resolving F1 into its vertical and horizontal component,

F1y = F1 cos θ

F1y = 310 * cos 32°

F1y = 263.5 N

F1x = F1 sin θ

F1x = 310 * sin 32°

F1x = 164.3 N

Resolving F2 into its vertical and horizontal component,

F2y = F2 cos θ

F2y = 464 * cos 13°

F2y = 450.1 N

F2x = F2 sin θ

F2x = 464 * sin 13°

F2x = 106.72 N

∑ Fx = F1x - F2x

∑ Fx = 164.3 - 106.72

∑ Fx = 57.58 N

∑ Fy = F1y + F2y

∑ Fy = 263.5 + 450.1

∑ Fy = 713.6 N

R² = ( ∑ Fx )² + ( ∑ Fy )²

R² = ( 57.58 )² + ( 713.6 )²

R² = 3315.46 + 509224.96

R = 715.92 N

tan θ = ∑ Fy / ∑ Fx

tan θ = 713.6 / 57.58

tan θ = 12.39

θ = 85.6° ( With the horizontal )

With the forward dashed line,

θ = 90 - 85.6

θ = 4.4° ( To the right of the forward dashed line )

F = m a

F = Force

m = Mass

a = Acceleration

m = 2850 Kg

a = F / m

a = 715.92 / 2850

a = 0.25 m / s²

Therefore,

a ) The resultant of these two forces is 715.92 N at 4.4° to the right of the forward dashed line

b ) If the car has a mass of 2850 kg, its acceleration is 0.25 m / s²

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Answer:

2 314.28571 kg / m

Explanation:

divide

and you see

As per the details given, the electric flux through the area when the electric field is perpendicular to the surface is 1.50 × \(10^6 Nm^2/C\). The electric flux through the area when the electric field is parallel to the surface is zero (0 N⋅\(m^2\)/C).

(a) The electric flux through the area may be determined when the electric field is perpendicular to the surface using the formula:

Φ = E * A * cos(θ)

Φ = (6.00 × \(10^5\) N/C) * (2.50 \(m^2\)) * cos(0°)

Φ = 1.50 × \(10^6 Nm^2/C\)

The electric flux through the area when the electric field is perpendicular to the surface is 1.50 ×  \(10^6 Nm^2/C\).

(b) The electric flux across the region is zero when the electric field is parallel to the surface.

This is due to the fact that the electric field lines are parallel to the surface, and no component of the electric field perpendicular to the surface contributes to the flux.

Thus, when the electric field is parallel to the surface, the electric flux across the region is zero  (0 N⋅\(m^2\)/C).

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Explanation:

Draw a free body diagram.  There are two forces: weight force pulling down and air resistance pushing up.

Sum the forces in the y direction:

∑F = 50 N − (30 kg) (10 m/s²)

∑F = -250 N

Answer:

The amount of energy wasted by light bulb 2 = 70 J

Explanation:

Sankey diagrams are used to graphically indicate the proportional flow rate of a quantity

The labelled Sankey diagrams, here, indicate the energy transfers in two light bulbs, light bulb 1 and light bulb 2

From the labelled Sankey diagrams, we have;

For light bulb 1, the input energy = 80 J

The useful energy = 40 J

The wasted energy = 80 - 40 = 40 J

For  light bulb 2, the input energy = 80 J

The useful energy = 10 J

Therefore, the wasted energy = 80 - 10 = 70 J

The amount of energy wasted by light bulb 2 = 70 J.

70 Joules of energy is wasted by light bulb 2 whereas bulb 1 wasted 40 joules of energy.

Bulb 1 uses 40 joules of energy out of 80 joules of energy and 40 joules of energy are wasted out of 80 joules of energy while on the other hand, bulb 2 uses 10 joules of energy as useful energy and 70 joules of energy are wasted out of 80 joules of energy.

According to the image, bulb 2 wasted more energy than bulb 1 so we can conclude that 70 joules of energy is wasted by bulb 2 out of 80 joules of energy.

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Answer:

D

Explanation:

Answer:

m = 2.01[kg]

Explanation:

This problem can be solved using Newton's second law which tells us that the force applied on a body is equal to the product of mass by acceleration.

\(F =m*a\)

where:

F = force = 12.5 [N]

m = mass [kg]

a = acceleration = 6.2 [m/s²]

\(12.5=m*6.2\\m = 2.01[kg]\)

The tension in each cable is approximately 49 N.

To find the tension in the cables, we can analyze the forces acting on the 10 kg mass in equilibrium. Since the mass is centered within the 4.0 m horizontal dimension, we can assume that the tension in each cable is equal.

Let's denote the tension in each cable as T. Since the mass is in equilibrium, the sum of the vertical forces acting on it must be zero.

Considering the vertical forces, we have:

T - T - mg = 0

Since the tension in each cable is equal and directed upwards, the vertical components cancel each other out. Therefore, we can rewrite the equation as:

-2T - mg = 0

We know that the mass (m) is 10 kg and the acceleration due to gravity (g) is approximately 9.8 m/s^2. Substituting these values into the equation, we get:

-2T - (10 kg)(9.8 m/s^2) = 0

Simplifying the equation, we have:

-2T - 98 N = 0

To solve for T, we isolate it on one side of the equation:

-2T = 98 N

T = 98 N / -2

T ≈ -49 N

The negative sign indicates that the tension in the cables is directed downward. However, tension is typically considered a positive quantity, so we can take the absolute value to obtain the magnitude of the tension.

Therefore, the tension in each cable is 49 N.

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