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Q1. A 0.27 kg rock is thrown perpendicularly upward from the top of the cliff that is 32 m high. When it hits the ground at the base of cliff, the rock has a speed of 29 m/s. suppose that air resistance can be ignored, find out A) initial speed of the rock and B) greatest height of the rock as measured from the base of cliff.
Q2. An 18 kg loudspeaker is suspended 2.7 m below ceiling by two cables that are each 70 degrees from vertical. What is the tension in cables?
How greatly time elapses before the compass hits the ground
A 53 kg skier skis directly down a frictionless slope angled at 12° to horizontal. Choose the positive direction of the x axis to be downhill along the slope.
A beam of 6 MeV electrons passes through a 400 micro-meter thick silicon detector. Estimate the energy lost by the electrons when crossing 200 micro-meters, 300 micro-meters and the full thickness of the detector.
What is vertical component of the acceleration
A discussion of why the ideal gas law is expected to fail at low temperatures and how its failure may affect your estimation of absolute zero.
The parallel metal plate of a capacitor is detached by a distance of 0.5cm and is connected to a 90v battery. Find the electric field between them and surface charge density on the plate.
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
The electric field points radially outward at all points within the sphere (and outside too, for that matter). What is the strength of the electric field at a distance r from the center, inside sphere.
Find the work function of the emitting surface and the wavelength of the second source. Determine the net work done on the piano.
What is fraction of the diameter of the Sun
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What is the speed of bulky cart after the collision
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