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A) what is the dimension of acceleration?
B) what is the dimension of gravitational force?
A glass soda bottle is emptied of soda and filled to the very top with water. A cork is carefully fitted into the top of the bottle, leaving no air between the cork and the water.
A car takes 11 s to go from v = 0 to v = 80 m/s at about constant acceleration. If you wish to find the distance travelled using the equation d = 1/2 at2, what value must you use for a.
Three forces act on an object. A 2 N force acts due east and a 3 N force acts due north. If the net force on the object is zero, what is the magnitude of the third force?
Find the current in a 9.00 ? resistor connected to a battery that has an internal resistance of 0.30, What is the emf of the battery
In 1975 the roof of Montreal's Velodrome, with a weight of 360 kN, was lifted by 10 cm so that it could be centered. How much work was done on the roof by the forces making the lift.
A skier of mass 62.00 kg is pulled up a slope by a motor-driven cable. (a) Explain how much work is required to pull him 55.00 m up a 30° slope (assumed frictionless) at a constant speed of 3.40 m/s?
Find out the vertical component of the reaction force
If a person exerts 44 N of force on the back of a seat while stopping in 0.4 seconds, what is the impulse on the seat back?
A laser beam is directed at the top mirror from the left edge of the bottom mirror. Elucidate what is the smallest angle of incidence with respect to the top mirror, such that the laser beam
A 12.0-V battery remains connected to a parallel plate capacitor with a plate area of 0.284m2 and a plate separation of 4.14mm, What is the store energy in the capacitor
A mass m1 = 3.8 kg rests on a frictionless table and connected by a massless string over a massless pulley to another mass m2 = 5.5 kg which hangs freely from the string, What is the tension in the string as the block falls
A railroad car with a mass of 2 x10^4 kg moving at 3.0 m/s collides and joins with 2 railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.20 m/s.
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