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Two forces act on a 100-kg block resting on the floor. The first force, pointing parallel to the floor, has a magnitude of 100 N and is directed in the +x direction. The second force has a magnitude of 50 N and is directed in the +y direction. What is the magnitude of the net force on the block?
A person with nearsightedness was prescribed with contact lenses of power -2.0 D. What is the range of object distances that this person can see clearly with the wrong lenses
What is the maximum speed the car. A roller-coaster car speeds down a hill past point A where R1 = 8.0 m and then rolls up a hill past point B where R2 = 15.0 m.
A roller coaster car travels down a hill and is moving at 18 m/s as it passes through a section of straight, horizontal track. what is the speed of the car at the top
A car is traveling along a straight road at a velocity of +34.0 m/s when its engine cuts out. For the next ten seconds, the car slows down, and its average acceleration is a1.
A magnetic field is directed at a 40.0 angle to a plane circular loop of wire with a radius of 26.8 cm. a) Draw a diagram showing the wire loop, compute the induced emf in the wire loop
A rectangular loop of wire has dimensions 0.5m by 0.3m. The loop is pivoted at x axis and lies in the xy plane. A uniform magnetic field of magnitude 1.5 T is directed at an angle of 40° with respect to the y axis with field lines parallel to the ..
On a hot summer day in the state of Washington while kayaking, I saw several swimmers jump from a railroad bridge into the Snohomish River below. The swimmers stepped off the bridge, and I estimated that they hit the water 1 s later.
A block with mass m = 4.6 kg is attached to two springs with spring constants kleft = 37 N/m and kright = 51 N/m. What is the effective spring constant of the two springs
determine the time the inhabitants of alpha station. A woman who weighs 600N at earth's surface stands on top of a very tall ladder so she is one earth radius above earth's surface. how much does she weigh.
A bartender slides a beer mug at 1.30 m/s towards a customer at the end of a frictionless bar that is 2.0m tall. The customer makes a grab for the mug and misses, and the mug sails off the end of the bar.
A 29.0 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 85.0 N and is directed at the angle of 30.0° above the horizontal. Find out the coefficient of kinetic friction.
A power plant burns coal and generates an average of 600.0 MW of electrical power, Find the total electrical energy generated by the plant in a 30-day period
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