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Q1. A projectile is fired at an upward angle of 45 from the top of a 227 m cliff with the speed of 160 m/s. What will be its speed while it strikes the ground below?
Q2. A horizontal uniform bar of mass 2.7 and length 3.1 is hung horizontally on two vertical strings. String 1 is attached to the end of bar, and string 2 is attached a distance 0.7 from other end. A monkey of mass 1.6 walks from one end of the bar to the other. Find out the tension in string 1 at the moment that the monkey is halfway between the ends of bar.
A harmonic wave travels in a wire with amplitude 6.05 mm, wavelength 0.451 m, and frequency 462 Hz. What is speed with which the wave travels.
At the same time, the stationary trumpeter played the same note. Ballot heard 3.0 beats per second. How fast was the train moving toward him.
What is an electric potential at a point
How much time is necessary for the torso to come to rest
What is least amount of work required by an external force
What is work done by the non-conservative force
What is the height of the hill . Find the coefficient of kinetic friction between flight bag and floor.
Find the radius of the largest water drop
Illustrates a FBD of the person
Calculate the speed of block at the instant the dielectric leaves the capacitor assuming it starts at rest and that the voltage across capacitor after the dielectric is removed is measured to be 200 V.
Six pendulums of mass and length are released from rest at the similar angle from vertical. Rank the pendulums according to the number of complete cycles of motion each pendulum goes through per minute.
An alpha particle (m = 6.7 ´ 10-27 kg, q = +3.2 ´ 10-19 C) has a speed of 20 km/s at point A and moves to point B where it momentarily stops. Only electric forces act on the particle throughout this motion. Find out an electric potential difference V..
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