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Q. The volume of an ideal gas is increased from 1 m3 to 8 m3 while maintaining a constant pressure of 1000 Pa (1 Pa = 1 N/m2).
How much work is done by the gas in this expansion?
Q. A block is given an initial velocity of 5.00 m/s up a frictionless 20.0° incline. How far up the incline does the block slide before coming (momentarily) to rest?
A Carnot engine whose cold reservoir temperature is 1.0 C has a thermal efficiency of 40%. By how much should the temperature of the hot reservoir be increased to raise the efficiency to 60%?
What would be the radius of curvature of the cornea
An electron accelerated from rest through a voltage of 350V enters a region of constant magnetic field. If the electron follows a circular path with a radius of 28cm, what is the magnitude of magnetic field.
Write down the expression for net torque
A particular organ pipe can resonate at 231 Hz, 385 Hz, and 539 Hz, but not at any other frequencies in between. Is it an open or a closed pipe? What is the fundamental frequency of this pipe.
Calculate the induced emf in the conductor and if the total resistance in the conductor is R what is the magnitude of the induced current.
How much energy is transferred to the water as heat
Coherent light with wavelength 609 passes through two very narrow slits, and interference pattern is observed on a screen a distance of 3 from the slits.
When in deep space, the block accelerates at 4.2 m/s^2 even as a 120 N force is applied to it. The coefficient of static friction for a particular plane and this block is 0.31. What angle can this plane make with horizontal before the object starts t..
A worker is pulling a cart. The frictional force between the cart and the ground is 500N. What is the minimum force that must be applied by worker to move the cart.
Find the work function of the emitting surface and the wavelength of the second source. Determine the net work done on the piano.
The 2.0 kg, 20 cm diameter disk is spinning at 320 rpm. How much friction force must the brake apply to the rim to bring the disk to a halt in 2.0 s.
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