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A mass of m is suspended from one end of a string. The total length of the string is 1.0 m and its mass is 5 g. The length of the string between support and pulley is D = 0.9 m. The string is vibrating as shown with a frequency of 30 Hz. Discover (a) the speed of a transverse wave in the string, (b) the mass m being suspended, (c) the wavelength of the wave.
A container of gas at 2.30atm pressure and 121C is compressed at constant temperature until the volume is halved. It is then further compressed at constant pressure until the volume is halved again. What is the final pressure of the gas?. What is the..
A luge and its rider, with a total mass of 90 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 38 m/s. If a force slows them to a stop at a constant rate of 1.4 m/s2.
In a perfectly inelastic collision, two identical 2kg objects collide head to head. What is the total linear momentum after collision
A particle undergoes two displacements. The first has a magnitude of 175 cm and makes an angle of 120.0° with the positive x axis. Find the magnitude and direction of the second displacement
An engine absorbs 1702 J from a hot reservoir and expels 1198 J to a cold reservoir in each cycle. What is the engine's efficiency? How much work is done in each cycle?
On a warm summer day (29?C), it takes 4.50s for an echo to return from a cliff across a lake. What is the temperature on the winter day
To celebrate a victory, a pitcher throws her glove straight upward with an initial speed of 6.5 m/s, How long does it take for the glove to return to the pitcher
A horizontal power line of length 52 m carries a current of 1.4 kA, find direction of the magnetic force on the power line
An electric vehicle starts from rest and accelerates at a rate a1 in a straight line until it reaches a speed of v. How much time elapses from start to stop
Two identical 1.3-kg blocks are connected by a massless string over a frictionless pulley of radius R = 15.000 cm and rotational inertia I = 0.004 kg m2, find the magnitude of the linear acceleration of the two blocks
Assume that the electric potential outside a living cell is higher than that inside the cell by 0.086 V. How much work is done by the electric force when a sodium ion (charge = +e) moves from the outside to the inside?
An object of mass 3m0 moves to the right at 0.8c. Calculate its momentum and energy
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