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A mother pulls her daughter, whose mass is 22.1 kg and who is sitting on a swing with ropes of length 2.87 m, backward until the ropes make an angle of 31.1° with respect to the vertical. She then releases her daughter from rest. What is the speed of the daughter when the ropes make an angle of 13.3° with respect to the vertical?
Two small beads having positive charges 2q and q are fixed at the opposite ends of a horizontal insulating rod, At what position is the third bead in equilibrium
In a pool game, the cue ball, which has an initial speed of 5m/s, makes an elastic collision with the eight ball, which isinitially at rest. Find the direction of motion of the cue ball after the collision
The tip of a tuning fork goes through 480 complete vibrations in a time of 0.570s. Find the angular frequency. Find the period of the motion.
q1. a volkswagen is stopped at a traffic light. when the light turns green the driver accelerates so that the car is
In a Compton scattering experiment, an x-ray photon scatters through an angle of 18.0° from a free electron that is initially at rest. Calculate the angle through which the electron scatters
a dog walking quickly away from a motion detector. Draw a velocity graph that could represent this motion
The magnitude of vector A is 24 m, and it points in the positive y direction. What are the magnitude and direction of vector
Just after opening a parachute of negligible mass, a parachutist of mass 82.5 kg experiences an instantaneous upward acceleration of 1.15 m/s2. Find the force of the air on the parachute
A home receives 1.3kW of electric power from a transformer on a nearby pole. What fraction of the power is lost in this transmission line
The displacement vectors 47.0 cm at 15.0° and 23.0 cm at 60.0° both start from the origin and form two sides of a parallelogram. Find the area of the paralleogram
Three uniform meter sticks, each of mass , are placed on the floor as follows: stick 1 lies along the axis from = 0.290 m to = 1.29 m, compute the location of the center of mass of the meter sticks
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = -28.0 cm). How far is the object from the converging lens
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