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A block is sliding to the right up a inclined plane (10 degrees) at an initial speed of 0.5 m/s. The coeffecient of friction is 0.3. The block stops momentarily. If the block does not slide down, how large must the minimum coefficient of static friction be? Please include step by step solution with answer.
A laser used to weld detached retinas emits light with a wavelength of 654nm in pulses that are 20.2ms in duration. How much energy is in each pulse
When lifting an object using the biceps muscle, the forearm acts as a lever with the fulcrum at the elbow. The input work is provided by the biceps muscle pulling up on the bone. How much force should the biceps exert to lift an object weighing 12..
Consider a game of billiards. The cue ball has an initial speed v0 before it strikes the eight ball which was previously at rest, Find the nal speeds of both the cue ball and the eight ball, assuming that the collision was perfectly elastic
A parallel-plate capacitor has plate area 2.5×10?3m2 and plate spacing 3.0×10?2m, Find the stored charge and energy when this capacitor is connected across a 60V battery
find out the magnitude of the gravitational force exerted.
A mortar* crew is positioned near the top of a steep hill. Enemy forces are charging up the hill and it is necessary for the crew to spring into action, How long will the mortar shell remain in the air
The current in a 100 watt lightbulb is 0.85 A. The filament inside the bulb is 0.25 mm in diameter. What is the elecron current in the filament
What is magnitude of the current
In a nuclear experiment a proton with kinetic energy 1.5 MeV moves in a circular path in a uniform magnetic field. What energy (in MeV) must (a) an alpha particle (q = +2e, m = 4.0 u) and (b) a deuteron (q = +e, m = 2.0 u) have if they are to circ..
A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to the point located 57.0 m from the origin and at an angle of 60.0 from the x-axis in 2.52 s.
A skateboarder shoots off a ramp with a velocity of 6.80m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.10 m above the ground.
Astronauts walking on the Moon are seen "bounding" rather than walking normally. Why?
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