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From the top of a 70m building, you throw a ball straight up at 6m/s. The ball misses the building on the way down.
a) what is the maximum height of the ball?
b) what is the velocity of the ball after2s?
c) what is the final velocity of the ball (just before it hits the ground)?
d) Now, the ball is thrown straight down at 6m/s. What is the velocity of the ball after 2s?
e) what is the final velocity of the ball?
A 116 g Frisbee is 28 cm in diameter and has about half its mass spread uniformly in a disk, and the other half concentrated in the rim. What is the magnitude of the torque, assumed constant, that the student applies
A charge +q is at the origin. A charge -2q is at x = 8.50 m on the +x axis, For what finite value of x is the electric field zero
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For safety in climbing, a mountaineer uses a nylon rope that is 69 m long and 1.0 cm in diameter. Whilst supporting a 96-kg climber, the rope elongates 1.4 m. Find its Young's modulus.
In uniform circular motion, a particle undergoes motion in a circular path with a constant speed. Which of the following statement is false and why?
A circular coil 19.0cm in diameter and containing nine loops lies flat on the ground. Determine the torque on the coil. Express your answer using three significant figures and include the appropriate units
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You are designing a precision mercury thermometer based on the thermal expansion of mercury, Determine the initial volume of mercury that allows this change, Find the radius of a spherical bulb that contains this volume of mercury
A metal ball with diameter of a half a centimeter and hanging from an insulating thread is charged up with 1020 excess electrons. An initially uncharged identical metal ball hanging from an insulating thread is brought in contact with the first ball,..
Find time constant if the ball's amplitude has decreased to 2.20 cm after 51.0 oscillations? Explain your answer.
An average temperature of the rest of the universe
Two long, parallel conductors carry currents I1 = 3.00 A and I2 = 2.50 A, both directed into the plane of the computer screen. Determine the magnitude and direction of the resultant magnetic field at P.
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