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A. A ball is thrown directly up with an initial speed of 4.00 m/s at y = 0. What is the maximum height h that it achieves, and what time th did that take? Show the final formulas for the quantities, along with the numerical answers. At 30 fps how many frames would be recorded in a video of the throw? At 120 fps?
B. From the height h in slide 2 the ball then drops back to y = 0. Find the time t0 that takes, and the velocity there (magnitude and direction). Show the final formulas for the quantities, along with the numerical answers.
C. Find the two times the ball is at the height y = ½ h. Show the final formula and the numerical answers.
D. Roughly sketch on a piece of paper what you expect the plots of y versus t and vy versus t will look like, take a picture, and paste them here.
The drawing shows a crystalline quartz slab with a rectangular cross section. A ray of light strikes the slab at an incident angle ofθ1= 38°, enters the quartz, and travels to point P. This slab is surrounded by a fluid with a refractive indexn. Wha..
The carts of a roller coaster are traveling 2 m/s over the top of the first hill. what speed will the carts have at the bottom of the hill
An object is lifted vertically 2m and held there. If the object weighs 30N, how much work was done in lifting it. Describe it briefly.
An 11.00 kg crate is placed on a horizontal conveyor belt. The materials are such that static friction = 0.47 and kinetic friction = 0.24.
Knowing that after the collision the three balls move in the directions indicated and assuming frictionless surfaces and perfectly elastic impact (that is, conservation of energy), determine the magnitudes of the velocities vA, vB, andvC.
Two concentric metal spheres are found to have a potential difference of 846.0 V when a charge of 3.186·10-8 C is applied to them. What is the radius of the inner sphere
Old naval ships fired 14 cannon balls from a 240 cannon. It was very important to stop the recoil of the cannon, since otherwise heavy cannon would go careening across the deck of the ship.
A barge floating in fresh water (? = 1000 kg/m3) is shaped like a hollow rectangular prism with base area A = 650 m2, Find the mass of the coal in kilograms
a glass lens has a scratch-resistant plastic coating on it. the speed of light in the glass is 0.670c and the speed of
An object with a mass of m = 4.6 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.265 m, determine the velocity when it hits the floor
A block is in equilibrium on a frictionless incline plane due to a tension force from a string that is wrapped around a pulley, find the masses m1 and m2 of the blocks
A helicopter propeller blade starts from rest and experiencesa constant angular acceleration of 24.0 rad/s2. What is the speed of apoint on the blade 5.45 m fromthe axis of rotation when the blade has completed 18 revolutions?
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