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Question: Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s. What is the net force acting on the body?
For a string stretched between two supports, two successive standing-wave frequencies are 505Hz and 630Hz . There are other standing-wave frequencies lower than 505Hz and higher than 630Hz.
Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. When the drive force is shut off, the snowmobile coasts to a halt. The snowmobile and its rider have a mass of138 kg. Under the..
16 g of nitrogen gas at STP are compressed in an isochoric process to a pressure 18 atm. What is the heat input to the gas
A 2.50kg bucket containing 11.5kg of water is hanging from a vertical ideal spring of force constant 120N/m and oscillating up and down with an amplitude of 3.00 cm.
A 0.410kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 22.0N/m . The block rests on a frictionless surface. A 6.00×10^2kg wad of putty is thrown horizontally at block, hitting it with a s..
A concave makeup mirror is designed so that a person 22 cm in front of it sees an upright image magnified by a factor of two. What is the radius of curvature of the mirror
Three moles of an ideal monatomic gas expand at a constant pressure of 2.70 ; the volume of the gas changes from 3.40×10?2 to 4.60×10?2 . First calculate the initial temperature of the gas. Second calculate the final temperature of the gas. Thrid ..
q1. a simple harmonic oscillator consists of a block of mass 1.80 kg attached to a spring of spring constant 107 nm.
A geological survey ship mapping the floor of the ocean sends sound pulses down from the surface and measures the time taken for the echo to return. How deep is the ocean at a point where the echo time (down and back) is 7.07 s
A 700 N window washer is standing on a uniform scaffold supported by a vertical rope at each end. The scaffold weighs 200 N and is 3 m long. what is the force in each rope when washer stands 1 m from one end.
You throw a 13.0N rock into the air from ground level and observe that, when it is 13.0m high, Use the work-energy principle to find the maximum height the rock will reach
The index of refraction for violet light in silica flint glass is 1.65, and that for red light is 1.62. What is the angle of deviation for the red ray passing through a prism of apex angle
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