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A block of mass m is initially at rest on a frictionless surface. At time t = 0, an increasing force given by F = kt2 is applied to the block. Find the velocity and the displacement of the block as a function of time and graph x and v versus t.
The image of a tree on a 35 mm color slide is 1.7 mm high. It is to be projected onto a screen 8.0 m from the slide, and is to appear 559 mm high. What is the magnification of the system
An object is placed 13.1 cm to the left of a diverging lens of focal length -6.04 cm. Find the distance d that places the final image at infinity
The nucleus of 8Be, which consists of 4 protons and 4 neutrons, is very unstable and spontaneously breaks into two alpha particles, What is the force between the two alpha particles
A 0.80 kg body oscillates on a spring that, when extended 3.0 mm from equilibrium, has a restoring force of 5.0 N. find the angular frequency of oscillation
A plastic bag is filled with hydrogen at atmospheric pressure and 27.0 oC. Assume that the mass of the bag is negligible, How large a volume of hydrogen (in m3) is required
q1. an emf is induced in a conducting loop of wire 1.22 m long as its shape is changed from square to circular.
A centrifuge whose maximum rotation rate is 11,000 rev/min can be brought to rest in 3.00 s. What is the average angular acceleration of the centrifuge
Traffic is moving along the highway at 52 km/h on a rainy day. Illustrate what is the minimum coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road?
A 1500 kg elevator moves upward with constant spped through a veticle distance of 25m. Explain how much work was done by the tension in the elevator cable?
Two speakers, one directly behind the other, are each generating a 295-Hz sound wave. What is the smallest separation distance between the speakers that would produce destructive interference at a listener standing in front of them? Take the speed..
A d = 3.77 mm diameter wire carries an electric current of I = 11.9 A when the electric field is E = 6.60×10-2 V/m along the wire. What is the conductivity of the wire
A .32 caliber bullet fired from a revolver with a 3 in long barrel will have a relatively low muzzle speed of about 200 m/s. how long will whole trip take
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