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The engine of a model rocket accelerates the rocket vertically upward for 2.0 s as follows: At t = 0, the rocket's speed is zero; at t = 1.0 s, its speed is5.0 m/s; and at t = 2.0 s, its speed is 18 m/s. Plot a velocity vs. time graph for this motion, and use the graph to determine each of the following.
(a) the rocket's average acceleration during the 2.0 s interval
m/s2
(b) the instantaneous acceleration of the rocket at t = 1.5 s
suppose that a projectile which is subject to a linear resistive force is thrown down with a speed of Vyo which is greater than the terminal speed Vterm. Describe and explain how the velocity varies with time, and make a plot of Vy against t for t..
Radio station KBOB broadcasts at a frequency of 85.7 MHz on your dial using a radio waves that travel at 3.00X10^8 m/s. What's the shortest distance between the towers
Tim and Rick both can run at speed v_r and walk at speed v_w, with v_{rm r} > v_{rm w}. They set off together on a journey of distance D. Rick walks half of the distance and runs the other half. Tim walks half of the time and runs other half.
Because the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it should be released above the top of the loop-the-loop height.
Define Eddy viscosity and Von Karman constant using the mixing-length theory.
A 260 wooden raft floats on a lake. When an 80 man stands on the raft, it sinks 5.0 deeper into the water. When he steps off, the raft vibrates for a while. What is the frequency of vibration.
The current in a coil changes from 3.10 A to 1.90 A in the same direction in 0.530 s. what is the inductance of the coil
Starting from rest, you pull the string with a constant force F = 8 N along a nearly frictionless surface. At the instant while the center of the disk has moved a distance x = 0.12 m, a length d = 0.27 m of string has unwound off the disk.
An electron passes through a point 3.75 cm from a long straight wire as it moves at 36.1% of the speed of light perpendicularly toward the wire. Find the magnitude of the electron\'s acceleration at that point
two tuning forks oscillating coherently and in phase at 1200Hz are separated by 0.35m, Calculate the angles of minimum intensity
Explain how much gain or loss does Martha recognize and illustrate what is her basis in the distributed property and in her partnership interest following the distribution?
given an electric dipole moment p, in a region of uniform Eo. determine the torque of the dipole moment
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