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A 1.5 kg ball and a 2.2 kg ball are connected by a 1.0 m long rigid, massless rod. The rod is rotating cw about its center of mass at 30 rpm. What torque will bring the balls to a halt in 4.4 s?
Find out the angular momentum and angular speed of the disk. what is the magnitude of the force (in mN) between the two charges.
A coil with 41 turns of wire is wrapped on a frame with a square cross-section 1.85 cm on a side. Find the magnitude of the induced current in the coil while the field is changing
A bar of gold measures 0.16 m cross 0.056 m cross 0.049 m. How many gallons of water have the same mass as this bar
slides 145m before coming to a halt. Illustrate what is the coefficient of friction between the skies and the snow?
Prove that when reflected, a ray of light incident upon a plane mirror rotates through an angle of 2q if the mirror is rotated through an angle of q. The mirror rotates about an axis that is perpendicular to the plane of incidence of the ray.
A projectile is launched with a momentum of 200 kg • m/s and 1000 J of kinetic energy. What is the mass of the projectile
a. suppose you held two proton in space far away from any other objects so that the only force is electrical force
The velocity of an object falling in free fall increases with time. Does the acceleration also increase? Why or why not?
A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hours to go around the earth. How far above the surface of the earth is this orbit
A particle with a mass of 3.50 10-20 kg is oscillating with simple harmonic motion with a period of 3.50 10-5 s and a maximum speed of 1.50 103 m/s. Calculate the angular frequency of the particle
a horizontal uniform bar of mass 2kg and length 3.0 m is hung horizontally on two vertical strings. string 1 is
Two skaters, A and B, of equal mass are moving in clockwise uniform circular motion on the ice. Their motions have equal periods, but the radius of skater A's circle is half that of skater B's circle
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