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must include free body diagrams with applications of newton's 2nd law 1) a 3.0 kg ball is attached to two pieces of string, each of length 0.5m the ball swings in a horizontal circle of radius 0.25 m at constant speed. if the tension in the lower string is 45N, find the speed of the ball and the tension in the upper string.
Explain how fast will he be moving backward just after releasing the ball?
A boat moves relative to water with a velocity which is n =2 times less than the river flow velocity. At what angle to the stream direction should the boat move to minimize drifting.
A 69N box of clothes is pulled 8.9 m up a 30° ramp by a force of 100 N that points along the ramp. If the coefficient of kinetic friction between the box and ramp is 0.22, compute the change in the box's kinetic energy.
Write your solution on how to start from the time-dependent Schrodinger equation and arrive at the general solution of the wavefunction
An 80 kg spacewalking astronaut pushes off a 640 kg satellite, exerting the 100N force for the 0.50 s it takes him to straighten his arms.
An electron that has an energy of approximately 2.0e+01 eV moves between rigid walls 1.8 nm apart. Find the precise energy of the electron
A 52.5 g Super Ball travelling at 30 m/s bounces off a brick wall and rebounds at 16.0 m/s. A high-speed camera records this event. If the ball is in contact with wall for 3.25 ms, what is the magnitude of the average acceleration of ball during t..
Electrons are accelerated from rest through a potential difference of 350 V and then enter a uniform magnetic field that is perpendicular to the velocity of the electrons. Estimate the period of this circular path
How long is the bridge? Write down an equation for the bridge's height. And how far from the center of the bridge are two points if bridge's height at those points is 80 meters.
Determine the maximum percent uncertainty it will produce in this experiment if we did not align the apparatus to minimize its effects
Two stars with equal areas and emissivities have surface temperatures of 4,061 K and 6,078 K respectively
The truck slows down uniformly with an acceleration of 5.60 m/s2 for 4.20 s, making skid marks 62.40 m long that end at the tree. With what speed does truck then strike the tree.
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