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A stone is thrown straight up with a speed of 25.0 m/s from the top of a building 55.0 m tall.
How far above the ground will the stone go?
How long until the stone hits the ground?
What is the speed of the stone just before it hits the ground?
If a ball is thrown downward from the top of the same building with a speed of
25.0 m/s, will its speed just before hitting the ground be greater than, less than, or equal to the speed of the stone just before it hits the ground? Explain. (Hint: What is the speed of the stone when it returns to the height it was thrown?)
Write down an energy transformation equation
A large, flat, horixontal sheet of charge has a charge per unit area of 8.5%u03BCC/m^2. Find the electric field just above the middle of the sheet
What is an average speed
A wheel with rotational inertia .146 kg-m2 turns through 40 rev as it slows down from an angular speed of 1.5 rad/s to a stop, what is the angular deceleration
Find out the time that the arrow spends in the air.
An inclined plane with friction, a massless/frictionless pulley, and two blocks, with m1 hanging and m2 resting on the plane. How do you find the acceleration
A diamond has a mass of 56.6 g and the gold ring it is set in has a mass of 125.6 g. How many carbon atoms are there compared to gold atoms
Find out the type of mirror and how far the object is
Two point charges have a total charge of 515 µC. When placed 1.15 m apart, the force each exerts on the other is 24.4 N and is repulsive. What is the charge on each.
On an airplane's takeoff, the combined action of the air around the engines and wings of an airplane exerts an 8020-N force on the plane, focussed upward at the angle of 55.0° above the horizontal. The plane rises with constant velocity in the vertic..
A 110kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350N. For the first 15.00 m the floor is frictionless and for next 15 m the coefficient of friction is 0.30. What is the final speed of the crate.
A baseball (m = 149 g) approaches a bat horizontally at a speed of 42.6 m/s (95 mi/h) and is hit straight back at a speed of 47.1 m/s (105 mi/h). compute the average force exerted on the ball by the bat
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