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Q1. A cart starts from rest at the top of the tilted track. Assume the track is frictionless. The cart passes photo gate A moving at speed 4.19 cm/s, and passes photo gate B moving at speed 6.32 cm/s. The distance between point A and point B is 73 cm.
Q2. Two pipes of equal length are each open at one end. Each has the fundamental frequency of 500 Hz at 325 K. In one pipe the air temperature is increased to 330 K. If the two pipes are sounded together, what beat frequency results?
How far apart are they when lighter astronaut has move.
The electric potential on the surface of a conductor (in static equilibrium) is 5V. find electric potential in the interior of the conductor
The position of an object as a function of time is (3.2t + 1.8t^2)i + (1.7t + 2.4t^2), Find the magnitude and direction of the object
A person's eyeball has a diameter D (measured from lens to retina). find Where is this person's near point and far point
A block is pushed up a 20.0 (degrees) frictionless incline with an initial speed 12.0 m/s. How much time does it take to return to its starting position
An ice skater is traveling in a straight, horizontal line on the ice with a velocity of v=5.5m/s in the positive x direction. Write an expression for the normal force, F_n, that the ice pushes against both skates together
A light bulb emits light uniformly in all directions. The average emitted power is 150.0 W. At a distance of 4.50 m from the bulb, find out (a) the average intensity of the light, (b) the rms value of the electric field, and (c) the peak value of t..
question1a long solenoid has 100 turnscm and carries a current i. an electron moves within the solenoid in a circle of
Ocean waves (on a particularly nice summer day) move past at 1.8 waves/s. find the speed of the waves
A 22 child slides down a 2.4 -high playground slide. She starts from rest, and her speed at the bottom is 1.9 What is the change in thermal energy of the seat of her pants
Four equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. A charge of -4.9×10-6 C is placed at the center of the cube. What is the magnitude of the force on the charge at the center of the cube?
A 105-kg water skier floating in a lake is pulled from rest to a speed of 14 m/s in a distance of 25m. What is the net force exerted on the skier, assuming his acceleration is steady.
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