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A soft tennis ball is dropped onto a hard floor from a height of 1.60m and rebounds to a height of 1.22m. (Assume that the positive direction is upward.)
(a) Calculate its velocity just before it strikes the floor.
(b) Calculate its velocity just after it leaves the floor on its way back up.
(c) Calculate its acceleration during contact with the floor if that contact lasts 3.50 ms.
(d) How much did the ball compress during its collision with the floor, assuming the floor is absolutely rigid?
A solid sphere of mass 0.599 kg rolls without slipping along a horizontal surface by a translational speed of 5.44 m/s. It comes to an incline that makes an angle of 31°with the horizontal surface. Ignoring energy losses due to friction, to what perp..
What is the approximate number of molecules in the gas? What is the approximate mass density of the gas, in SI units?
A child slides without friction from a height of 10.4 meter above the water along a curved water slide. Find her maximum airborne height y above the water
A neutron moved through a 3.6 T field with a speed of 189091 m/s. The velocity of the neutron is perpendicular to the field. Find what is the magnetic force on the neutron
When placed in a water of density 997 kg/m3, a hollow sphere of inner radius 10cm and outer radius 11cm floats with half of its volume below the level of the free surface of the water. Compute the density of the material the sphere is made. When plac..
a childs mass is 30 kg she pulls a 15 kg- wagon with a horizontal handle whose mass is 1.9 kg accelerating the wagon
Two waves travel simultaneously through the same medium. The first wave is described by y1(x,t) = (2.00 cm)cos[kx-t], What is the amplitude of the resulting wave
A ballplayer catches a ball 3.2 s after throwing it vertically upward. With what speed did he throw it
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galvanometer deflection Gradually decreases as the iron core is withdrawn. How does Faraday's Law acount for this behaviour
Consider a transverse wave were represented by function y= 2.3 sin(1.9x-25t), where y,x, and t are in units of m,m, and seconds respectively. Determine the wavelength in meters.
True false questions on physics
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