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A proton is fired at the wire with an initial speed of 59000 m/s. It approaches the wire along a perpendicular trajectory. Find how close does it make it to the wire before it turns around?
q1. the wind blows with a force of 425n north on a sail boat while the water exerts a force of 325n west on the
Starting from rest, a basketball rolls from the top to the bottom of a hill, reaching a translational speed of 7.9 m/s. Ignore frictional losses. What is the height of the hill?
q1. a golf ball is struck with a five iron on level ground. it lands 95.3 m away 4.50 s later. what were a direction
welding machine draws a 18A of current at 240V. When it is inadvertently connected to a 120V outlet, the current in it is 10A. Is the machine's resistance ohmic
A thin spherical shell has a radius of 1.80 m. An applied torque of 1060 N m imparts to the shell an angular acceleration equal to 5.70 rad/s2 about an axis through the center of the shell
A 2600 kg automobile is traveling at 20 m/s when the brakes are applied. The braking force is 10192 N. Use work-energy methods for this problem. Determine the initial kinetic energy of the automobile
A bullet of mass 0.5 kilogram is headed at horizontal speed 130 m/s toward a block of mass 4.5 kilogram resting on a horizontal frictionless surface.Find what average force did the block exert on the bullet
A factory workeraccidentally releases a 175 kg cratethat was being held at rest at the top of a 3 m long ramp inclined at 38° to the horizontal. How far will it subsequently slide across the factory floor
A coffee cup heater and a lamp are connected in parallel to the same 120-V outlet. Find the resistance of the lamp
Argon is a monatomic gas whose atomic mass is 39.9 u. The temperature of 9 grams of argon is raised by 75 K under conditions of constant pressure. Assuming that argon is an ideal gas, evaluate how much heat is required? J
Two capacitors give an equivalent capacitance of 10.00 pF when connected in parallel and an equivalent capacitance of 1.75 pF when connected in series. What is the capacitance of each capacitor
A 1.1 kg block of ice is initially at a temperature of -5°C. If 4.8 ? 105 J of heat are added to the ice, what is the final temperature of the resulting liquid water
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