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The drawing shows two boxes resting on frictionless ramps. Onebox is relatively light and sits on a steep ramp. The other box isheavier and rests on a ramp that is less steep. The boxes arereleased from rest at A and allowed to slide down the ramps. Thetwo boxes have masses of 12 and 38 kg. If A and B are5.5 and 0.5 m, respectively, above the ground,determine the speed of (a) the lighter box and(b) the heavier box when each reaches B.(c) What is the ratio of the kinetic energy of theheavier box to that of the lighter box at B?
A charged particle moves through a velocity selector at a constant speed in a straight line. The electric field of the velocityselector is 4.15*103 N/C, while the magnetic field is 0.360T.
A piece of aluminum with a mass of 2.0 kg and density of 2700kg/m^3 is suspended from a string and then completely immersed in acontainer of water. Determine the volume of the piece of aluminum
An RC circuit is connected across a DC voltage source through an open switch. The switch is closed at t = 0 s. Which of the following is a correct statement regarding the circuit
A dissecting microscope is designed to have a large distance between the object and the objective lens. find the distance between the object and the objective lens
What is the ratio of the intensities of an earthquake P wave passing through the Earth and detected at two points 17km and 49km from the source, what is the ratio of the amplitudes
A marble is thrown horizontally with a speed of 13 m/s from the top of a building. From what height above the ground was the marble thrown
a small mailbag is released from a helicopter that is descending steadily at 1.50 ms. after 3.00 s answer the following
A ray of light strikes a flat, 2.00-cm-thick block of glass (n = 1.54) at an angle of ? = 29.2° with respect to the normal (see figure below). Find the angle of refraction at the top surface. Find the angle of incidence at the bottom surface and the..
Light of wavelength 624 nm passes through a single slit and then strikes a screen that is 1.2 m from the slit. What is the width of the slit
A cylindrical capacitor consists of a solid inner conducting core with radius 0.200cm , surrounded by an outer hollow conducting tube. Calculate the outer radius of the hollow tube
A 55-kg swimmer is standing on a stationary 210-kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.6 meter per second relative to the shore. Calculate the recoil velocity that the raft would have if there were ..
You plan to project an inverted image 30.0 cm to the right of an object. You have a diverging lens with focal length -4.00 cm located 6.20 cm to the right of the object. What is the focal length of the second lens
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