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A meter stick is supported on a fulcrum at the 35 cm mark. A 0.70 kg object is hung from the zero end of the meter stick, and the stick is balanced horizontally. What is the mass of the meter stick?
As a function of time, the velocity of the football can be written as. Calculate the average acceleration vector of the football
A tungsten wire has a radius of 0.070 mm and is heated from 20.0 to 1330 oC. The temperature coefficient of resistivity is ? = 4.5 x 10-3 (Co)-1, How long is the wire
Point P is at a potential of 500.0 kV and point S is at a potential of 200.0 kV. by how much does its kinetic energy change
A car of mass 1530 kg traveling at 24 m/s is at the foot of a hill that rises 110 m in 3.8 km. Find the average power delivered by the car's engine
A father racing his son has three-fifths the kinetic energy of the son, who has half the mass of the father. What is the original speed of the son
Two wires are tied to the 300g Sphere as shown in figure below. The sphere revolves in a horizontal circle at constant speed of 7.5 m/s. Find the tension in each wire
You notice you are running low on gas in your 1200kg car, and you are hoping you have enough gas to reach the bottom of the hill. what will your speed be at the bottom of the hill
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.90 m/s at an angle of 23.0° below the horizontal. Find the height from which the ball was thrown
Wavelengths of light from a remote galaxy are found to be 1.5 % longer than the corresponding wavelengths measured here on earth. What is the speed of the galaxy relative to earth
A charge ?1.3 × 10^ ?5 C is ?xed on the x-axis at 9 m, Calculate the electric potential at the origin
You're working on a new high-speed rail system. It uses 6000-horsepower electric locomotives, getting power from a single overhead wire with resistance 15 mOhms/km, How far from the power plant can the train go and still meet this standard
The drawing shows a collision between two pucks on an air-hockey table. Puck A has a mass of 0.0500 kg and is moving along the x axis with a velocity of +7.08 m/s. It makes a collision with puck B, which has a mass of 0.100 kg and is initially at res..
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