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a uniform steel bar with weight of 98 N and length of 3.0 m is suspended on each end by a rope. A 50.0 kg mass hangs 50.0 cm from the left end of the bar. There is a 75.0 kg mass hanging 75.0 cm from the right end of the bar. A person pushes up with a force of 98N on the center of the bar. How much weight does each rope support? (let S1 be the support force on the left end of bar)
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road, How far has the bicyclist traveled during the entire trip and What is the average speed of the bicyclist for the trip
A parallel plate capacitor of capacitance 4.3 µF has the space between the plates filled with a slab of glass with ? = 3.9. Find the capacitance after the glass is removed
The gravitational force exerted on a baseball is 2.23 N down. A pitcher throws the ball horizontally with velocity 14.5 m/s by uniformly accelerating it along a straight horizontal line for a time interval of 169 ms. The ball starts from rest.
A 30 ohm resistor has a voltage difference of 3 volts across its leads. What is the power being dissapated in the resistor
A worker pushed a 65.0-kg block 10.0 m along a level floor at a constant speed with a force directed 39.0° below the horizontal. how much work did the worker do on the block
question1a race car starts from break on a circular track of radius 463 m. the cars speed increases at constant rate of
Calculate the flow rate in cubic centimeters per second in an aorta of radius 60 cm if the average blood velocity in it is 0.81 cm/s
Please help me solve this problem: The electric motor of a model train accelerates the train from rest to 0.600 m/s in 33.0 ms. Find the average power delivered to the train
A runner in a race takes 2.7 seconds to go from the 40 meter mark to the 70 meter mark. What is the runner's speed (in m/s)
A rollercoaster with passengers has a mass of 2500 kg. This rollercoaster is powered to the top of a 25 m hill where it pauses for a moment at rest. What is the speed of the rollercoaster at the top of the vertical loop
Two indentical spaceships are travelling in the same direction. an observer on earth measure the first to have a speed of 0.80c, what is the speed of second spaceship
A father pulls his young daughter on a sled with a constant velocity on a level surface a distance of 10 m. how much work does the father do
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