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A ball is thrown down vertically with an initial speed of 24 ft/s from a height of 41 ft.
(a) What is its speed just before it strikes the ground? (b) How long does the ball take to reach the ground?
What would be the answers to (c) part a and (d) part b if the ball were thrown upward from the same height and with the same initial speed ? Before solving any equations, decide whether the answers to (c) and (d) should be greater than, less than, or the same as in (a) and (b).
A driver travels northbound on a highway at a speed of 25.0m/s. What frequency does the driver observe as the police car approaches
The number of kilocalories in food is determined by calorimetric techniques in which the food is burned and the amount of heat transfer is measured. how many kcal is consumed per serving
1.research to find equations that would help you find g using a pendulum. design an experiment and test your design
A speedboat starts from rest and accelerates at +2.15m/s2 for 8.35 s. At the end of this time, the boatcontinues for an additional 8.62 s with an acceleration of +0.629m/s2. Following this, the boat accelerates at -0.968m/s2 for 8.87 s.
James Stewart, 2002 Motocross/Supercross Rookie of the Year, is leading a race when he runs out of gas near the finish line. Determine the distance the racer travels before coming to a stop
The 3.0-m-long pipe in the figure is closed at the top end. It is slowly pushed straight down into the water until the top end of the pipe is level with the water's surface. What is the length L of the trapped volume of air?
use the biot savart to compute the magnetic field at the center of a matalic ring. the ring has a radius of 10^-6 m, compute the magnetic field at the center of the ring
A rock is launched from a wall 15 m above a moat at a speed of 29m/s at an angle of 36 deg above horizontal. How far from the wall does the launched rock hit the ground?
A 100-m-long train accelerates uniformly from rest. If the front of the train passes a railway worker 166-m down the track at a speed of 21 m/s, what will be the speed of the last car as it passes the worker.
A ball is thrown toward a cliff of height h with a speed of 26m/s and an angle of 60 degree above horizontal. It lands on the edge of the cliff 3.0s later. What was the maximum height of the ball
a sinusoidal wave is traveling on a string with a speed of 40 cms. the displacement of the particles of the string at x
A green photon ( = 551 nm) is absorbed by a free hydrogen atom, initially at rest. What is the recoil speed of the hydrogen atom
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