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When an 85.0-kg adult uses a spiral staircase to climb to the second floor of his house, his gravitational potential energy increases by 1.70 x 103 J. By how much does the potential energy of a 23.0-kg child increase when the child climbs a normal staircase to the second floor?
What is amplitude of the subsequent oscillations
What is the mass of a puppy that sits on the other piston and balances the person?
The vertical displacement of particles in a string (when a wave is propagating through it) is given by y = (0.02) sin[(10?)t - (8?)x], where everything is measured in standard units, meters and seconds. What is the amplitude of the wave?
Two metal plates are held together by two steel rivets, each of diameter 0.24cm and length 1.2cm.How much force has to be applied parallel to the plates to shear off both rivets.
After being accelerated to a speed of 1.84×105, the particle enters a uniform magnetic field of strength 1.00 and travels in a circle of radius 35.0. The results of this experiment allow one to find.
The pyramid depicted in the figure contains approximately 2.20 million stone blocks that average 3.00 tons each. Find the weight of this pyramid in pounds. (Please provide numerical answer in lbs)
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 290 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes.
find the x and y components of the shell.
what is the force of kinetic friction acting on the skier. avoid the length of her car and her reaction time.
When a force of 19.0 N is applied to a spring, it elongates 0.0858 m. find out the period of oscillation of a 4.0 kg object suspended from this spring.
A 340 g air track cart traveling at 1.25 m/s collides elastically with the 300 g cart traveling in the opposite direction at 1.33m/s. What is the speed of the 300g cart after collision.
Astronomers discover a binary star system that has a period of 93.0 days. The binary star system consists of two equal-mass stars, each with a mass twice that of the sun, that rotate like a dumbbell about the centre of mass at the midpoint between..
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