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A girl with a mass of 40 kg is swinging from a rope with a lengthof 2.2 m. What is the frequency of her swinging?
q1. a 35.0-kg child swings in a swing supported by two chains each 2.90 m long. the tension in each chain at the lowest
A 600g mass is traveling west (positive x-axis) at 8.0 m/s undergoes an inelastic collision with a stationary 250g mass. If the 600g mass travels at an angle of 40 (o) above the x-axis and with a speed of 3 m/s
A car traveling 51.9 km/h is 26.2 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.84 s later. How fast is the car traveling at impact
As part of a carnival game, a 0.578-kg ball is thrown at a stack of 24.3-cm tall, 0.343-kg objects and hits with a perfectly horizontal velocity of 11.6 m/s. find the center of mass velocity of the tall object
A 3730.-nF parallel plate capacitor is connected to a 21.4-V battery and charged. What is the charge Q on the positive plate of the capacitor? How much of the electrical energy stored in the 3730.-nF capacitor was transferred to the other three capac..
q. a transverse electromagnetic plane wave with a frequency of 2.84 mhz travels directly away from you - z direction.
a biology labs walk-in cooler measures 3.0 m by 2.0 m by 2.3 m and is insulated with 8.0-cm-thick styrofoam. if the
A uniform rod of mass 3.35×10?2kg and length 0.430m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the rod after the rings leave it
A lens system consists of two lenses, one is converging and the other is a diverging lens. A screen is placed 32 cm to the right of the converging lens. Find the focal length of the diverging lens
A 78.05kg fisherman is sitting in his 33.25kg fishing boat along with his 13.49kg tackle box. What is the recoil speed of the fisherman and his boat
Nik is walking a tightrope across Niagara Falls. The tightrope spans 460m. Find the tension in the tightrope while he is standing at this point
A solid spherical ball of mass 1.21 kg and radius 0.07 m rolls along a smooth, level surface with a speed of 2 m/s. How far up the plane does the ball go
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