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a uniform rod of wood floats vertically in water with 14cm of its length immersed in water.if it is depressed slightly and released find its period of oscillation.
A small glider is placed against a compressed spring at the bottom of an air track that slopes 40 degrees above the horizontal. The glider has a mass of 0.90 kg. The spring has a k = 640N/m and negligible mass. When the spring is released, the glider travels a maximum distance of 1.80 m along the air track before sliding back down. Before reaching this maximum distance, the glider losses contact with the spring.

What distance was the spring originally compressed?
When the glider has traveled along the track .80 m from its initial position against the compressed spring, is still in contact with the spring? What is he kinetic energy of he glider at this point?
The rate of change of speed of the belt is given by 0.06(10-t) m/s2, where t is in seconds. The speed of the belt is 0.8m/s at t=0. When the normal acceleration of a point in contact with the pulley is 40m/s2, determine (a) the speed of the belt; (b) the time required to reach that speed; and (c) the distance traveled by the belt. Radius is 0.2m
a particle is performing linear SHM at apoint A on its path its potential energy is three times its kinetic energy.At another point B on its path its kinetic enerrgy is thrree times its potential enenrgy.find the ratio of its potential energy at A to its potential enenrgy at B
a particle of mass 100gm performs linear SHM along a path of length 20cm with a frequency of 60hz .Find the value of momentum when it is at a distance of 2cm from positive extrimity?
The speed of a spacecraft moving between Earth and Mars at an instant when Earth
and Mars are 2.4 × 1011 m apart is measured as v = 0.8c. The distance between the
planets is measured in the fixed frame of reference in which Earth and Mars are at
rest. What is the distance between Earth and Mars in the frame of the spacecraft? In
the frame of the spacecraft, how much time elapses between the spacecraft crossing
Earth and the spacecraft reaching Mars?
A 0.024-kg bullet is fired vertically at 225m/s into a 0.15-kg baseball that is initially at rest. How high does the combined bullet and baseball rise after the collision,assuming the bullet embeds itself in the ball?
A spring has a frequency of 5 Hz when a 20 N weight is suspended from it. How far would the spring stretch from equilibrium when a 50 N weight is suspended from it?
A bat flying in a cave emits a sound and receives its echo 2.3s later. How far away is the cave wall if the speed of sound is 343m/s?
a stone is thrown upwards with a velocity of 40m/s. if the maximum height attained is 20m. what is the angle of projection
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