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A rock of mass 0.340 kg is spun horizontally at the end of a wire that is 1.00 m long and has a diameter of 1.00 mm. If the wire gets stretched by 2.00 mm when the rock moves at a speed of 19.0 m/s, what is the Young's modulus of the wire?
From what height will you have to drop the rock on Earth so that the fall-time on both planets is the same.
A parallel-plate capacitor is charged to an electric potential of 337 V by moving 3.88E+16 electrons from one plate to the other
Block A is dropped from a height of 2 m. An identical block B slides frictionlessly down a ramp of height 2 m inclined at 30°. Which block is travelling fastest at the bottom of the ramp
A hydrogen atom consists of a single proton and a single electron. Experimentally it is found that it takes 13.6eV of energy to strip the electron from the proton. calculate the size of the hydrogen atom
What is the magnitude of the acceleration of the speck of clay on the edge of a potter's wheel turning at 50 (revolutions per minute) if the wheel's diameter is 38.0 cm.
One end of a horizontal rope is attached to a prong of an electrically driven tuning fork that vibrates at a frequency 125Hz, What is the speed of a transverse wave on the rope
A 303 turn solenoid has a radius of 5.00 cm and a length of 22.0 cm. Find the inductance of the solenoid
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
A 150g steel ball and a 300g steel ball each hang from 1.0-m-long strings. At rest, the balls hang side by side, barely touching. To what angle does each ball rebound
Explain what was observed with the horizontal motion of the man and the boat in terms of Newton's Laws of Motion.
Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9300 N. Illustrate what does the scale read during the acceleration?
A 21 kg sled is being pulled across a horizontal surface at a constant velocity. The pulling force has a magnitude of 80.5 N and is directed at an angle of 30° above the horizontal. Determine the coefficient of kinetic friction.
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