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A stunt driver wants to make his car jump over eight cars parked side by side below a horizontal ramp. The vertical height of the ramp is 1.5 m above the cars, and the horizontal distance he must clear is 20 m. If the ramp is now tilted upward, so that "takeoff angle" is 7.0 degrees above the horizontal, what is the new minimum speed?
If she were to use the mattress as a trampoline losing contact with it for part of each cycle. What minimum amplitude of oscillation does she need.
A piccolo and a flute can be approximated as cylindrical tubes with both ends open. What is the ratio of the piccolo's length to the flute's length
A block sits on a plate that in turn rests on the surface of a fluid, what is the pressure P in the fluid just below the plate
A 9 g ice cube at -10°C is placed in a lake whose temperature is 17°C. Calculate the change in entropy of the cube-lake system
A uniform magnetic field B is set up in a solenoid of radius a =.4m. B is directed out of the plane of the paper, and is increasing ar a constant rate of +.5 T/s. find the size of the current induced in the metal ring
A physics professor demonstrates the Doppler effect by tying a 650 Hz sound generator to a 1.1 m long rope and whirling it around her head in a horizontal circle at 100 rpm.
A 69.0 kg person throws a 0.0400 kg snowball forward with a ground speed of 35.0 m/s. What are the velocities of the two people after the snowball is exchanged
a 100N force acts for 0.05s on a .10kg ball with an initial velocity of -20m/s, What is the final momentum of the ball
A 2.30 N force pushes it to the left, and a 0.800 N force pushes it to the right. (a) Taking right to be positive, what is the net force acting on it? (b) What is its acceleration?
During the time a compact disc(CD) accelerates from rest to a constant rotational speed of 1260rev/min, what is the angular acceleration of the CD
Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break? Please Help Guys
A zoom lens has a focal length that varies from 30 to 200 mm. Which setting will make the subject look the largest Which setting will include the widest angle of field
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