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Larry is standing at the edge of a vertical cliff 210m about the sea. He throws a rock horizontally off the edge with an initial speed of 15m/s. how far has the rock traveled horizontally when it hits the water?
A one kilogram textbook drops from a one-meter high table in a room at 250C temperature. Find the change in entropy after the system has reached equilibrium
A garden plot must have a central planting area of length 13 m and width 8 m. There is to be a sidewalk around its edge of width w. If the total area, planting area plus sidewalk area, is 150 m^2, what is the sidewalk width w in meters.
what is the total amount of work done by friction. The supplies should be dropped how various seconds before the plane is directly overhead.
A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hour to go around the earth, What is the force of gravity on this satellite
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.95×1016 electrons from one plate to the other. How much work is done in charging the capacitor.
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. Calculate the apparent thickness of the plate as viewed from above the water
A negatively charged particle moving at 45 ? angles to both the y -axis and z -axis enters a magnetic field, What is the initial direction of deflection?
Suppose you walk 3.97 m down a 30° incline while holding a 1.05 kg block. The 3.97 m distance is measured as a displacement along the incline; not as a vertical change in height. How much work do you do on the block as you walk down the incline.
a heat engine operates between a hih temp reservoir at 610K and low temp reservoir at 320K. find the net change in entropy as a result of this cycle
A ray of light traveling in air is incident on the flat surface of a piece of glass at an angle of 66.5° with respect to the normal to the surface of the glass, what is the refractive index of the glass
An object with a charge of -4.4?C and a mass of 1.7×10?2kg experiences an upward electric force, If the electric charge on the object is doubled while its mass remains the same, find the direction and magnitude of its acceleration
Start with the thin lens equation and solve for the image distance in terms of the focal length and object distance. Use this to explain why you can expect a real image only
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