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a cube of wood floating in water supports a 200g mass at the centre of its top face. when the mass is removed, the cube rises by 2cm. determine the volume of the cube. please explain the meaning of question also.
A proton is released from rest at the positive plate of a parallel-plate capacitor. What will be the final speed of an electron released from rest at the negative plate
a monochromatic beam of light of wavelength 600nm is incident on a diffraction grating with a slit spacing of 1.7*10^-4cm
A solid cylinder of mass 3 kg and radius 0.2 m starts from rest at the top of a ramp, inclined 15°, and rolls to the bottom without slipping. (For a cylinder I = 0.5MR2) The upper end of the ramp is 1.2 m higher than lower end. Find the linear sp..
Find the work done by an ideal engine which extracts 11500.0 J of heat from its hot reservoir while operating between 530.0 K and 310.0 K
Now consider this applet, where the two blocks have different masses. Plug the starting values into your formula from Part G, using 5 for mass of the red block and 10 for the magnitude of the acceleration of gravity.
A 0.250 kg ball attached to a string s being swung in a vertical circle, What is the minimum speed at the top of the circle to keep the string from going slack
A physics professor is pushed up a ramp inclined upward at an angle 34.0 degrees above the horizontal as he sits in his desk chair that slides on frictionless rollers, Use the work-energy theorem to find his speed at the top of the ramp
A string with linear density 2g/m is stretched along the positive x-axis with tension 20 N. One end of the string, at x = 0, is tied to a hook that oscillates up and down at a frequency of 100 Hz with a maximum displacement of 1.0 mm. At t = 0s, t..
q1. an archer shoots an arrow with a velocity of 45.0ms at an angel of 50.0 with the horizontal. an assistant standing
A child slides down a slide with a 23° incline, Calculate the coefficient of kinetic friction between the slide and the child
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 130 m below. How much time passes before it hears an echo
The planet Venus requires 225 days to orbit the sun, which has a mass M = 1.99 x 1030 kg, in an almost circular trajectory. Calculate the radius of the orbit of Venus and the orbital speed of Venus as it circles the sun.
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