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A 7.05-kg box is pulled up a ramp that is inclined at an angle of 35 degrees with respect to the horizontal, as shown below. The coefficient of kinetic friction between the box and the ramp is 0.115, and the rope pulling the box is parallel to the ramp. If the box accelerates ip the ramp at a rate of 2.09 m/s2, what must the tension FT in the rope be? Use g=9.81 m/s2 for the acceleration due to gravity.
The rms speed of the molecules of a gas at 137°C is 183 m/s. Calculate the mass of a single molecule in the gas
A skier leaves the end of a horizontal ski jump at 22. m/s and falls 3.20 m before landing. how far horizontally does the skier travel in the air before landing
A person driving her car at 53.0 km/h approaches an intersection while the traffic light turns yellow. She knows that the yellow light lasts only 2s before turning to red.
A 54.00 kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find out the force (magnitude and direction) exerted on her by the bungee cord at an instant while her downward acceleratio..
A 1.0-kg ball is attached to the end of a 2.5-m string to form a pendulum. This pendulum is released from rest with the string horizontal. What is the speed of the block just after the collision
A 15.0 kg bucket of water is suspended by a very light rope wrappedaround a solid uniform cylinder 0.300 m in diameter with mass 12.0kg. What is the tension in the rope while the bucket is falling
The wavelength of visible light ranges from 400 nm to 700 nm. Find the ranges of this light's angular frequency
A boxcar of length 8.0 meter and height 3.0 meter is at rest on frictionless rails. Find the displacement of the boxcar 5 sec after the water has settled in the bottom of the car
An 1100 kg airplane starts from rest; 7.1s later it reaches its takeoff speed of 40m/s. What is the average acceleration of the airplane during this time?
James Bond (90 kg), outtted with perfectly matching skis and skiware, is at the top of a steep slope that a secret spy like him can easily handle. Determine the speed of Bond at position B abd C
calculate the electric field at the center of a square 53.0 cm on a side if one corner is occupied by a 48.0 microc
A 4.00-kg model rocket is launched, expelling 54.9 g of burned fuel from its exhaust at a speed of 690 m/s. What is the velocity of the rocket after fuel has burned.
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