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A projectile of mass m is launched from the ground at time t = 0, with speed v0, at angle 0 above the horizontal. Aerodynamic drag is negligible. Write the (Newtonian) kinetic, potential, and total energies of the projectile as explicit functions of time. Take the zero of potential energy to be at ground level. Simplify your results as much as possible.
Your spaceship lands on an unknown planet. You drop a 1.50 kg wrench from 5.50 m above the ground, What is the mass of the planet, in kilograms
A small grinding wheel has a moment of inertia of 4.0×105kg.m2. What net torque must be applied to the wheel for its angular acceleration to be 150rad/s2.
Mike is riding his unicycle of wheel diameter 20 in. Mike rides for 30 m with an initial angular velocity of 0.75 rad/s, What is the unicycle's linear velocity at 30 m?
q1. a 22 kg girl slides down a playground slide that is 8.50 m high. when she reaches the bottom of the slide her speed
A weight lifter raises a 972 N weight a vertical distance of 1.87 m. Compute the work done by the force exerted on the weight by the weight lifter
a 7.75- g bullet from a 9-mm pistol has a velocity of 397.0 ms.it strikes the 0.785- kg block of a ballistic pendulum
A 440.0-N force accelerates a go-cart and its driver from 10.1 m/s to 18.1 m/s in 5.20 s. What is the mass of the go-cart plus driver
You are now studying a length of wire that has been coiled up to create a circular coil of 4 turns all arranged compactly, The loop has radius of 0.0240 m and a current of 49.5 A, What is the strength of the magnetic field at the center of the loop
A solid disk of mass M= 2.0 kg and radius R= 0.25 m rotates at an angular velocity of 0.50 rad/s with respect to an axis perpendicular to the disk at its center. what is the angular velocity of the disk
bowler uses a 5-kg bowling ball. What is the weight of the bowling ball, What is the momentum of the ball
A long wire lying along the x-axis carries a current of 1.60 A in the +x direction. There is the uniform magnetic field present, given by B=0.003i + 0.004j + 0.002k, where i, j, k are the unit vectors along cartesian coordinate axes') in units of Tes..
A copper pot with a mass of 0.505kg contains0.175kg of water, and both are at a temperature of21.0?C. Find the final temperature of the system
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