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The planet Earth travels in a circular orbit at constant speed around the Sun. What is the net work done on the Earth by the gravitational attraction between it and the Sun in one complete orbit? Assume that the mass of the Earth is given by , the mass of the Sun is given by , and the Earth-Sun distance is given by .
The pressure in a traveling sound wave is given by: ?p = (1.6 Pa) sin ?[(1.30 m-1)x - (375 s-1)t]. What is the pressure amplitude
With a particular grating a doublet of the two wavelengths 731.3 and 732.1 nm is viewed in the third order at 9.3° to the normal, find the grating spacing in nanometers
A place kicker must kick a football from a point 34 m (about 37 yd) from the goal, and the ball must clear the crossbar, which is 3.05 m high. When kicked, the ball leaves the ground with a speed of 23 m/s at an angle of 55 to the horizontal. By how..
q1. a long straight wire is in the plane of the page and carries a current of a. point p is also in a plane of the page
The electric field lines on the left have twice the separation of those on the right. If the magnitude of field at point-A is 60 V/m, what is the magnitude of the field at point-B.
A 5.0 megawatt windmill has three 45 m-long blades that can be approximately viewed as straight rods. If the rotational speed of the rods is 6 rpm, what is the mass of each rod
A room measures 2.0 m by 5.5 m by 5.0 m. The heating and air-conditioning ducts to and from the room are circular with diameter 0.23 m, What is the necessary flow speed in the duct
An observatory has an 8-inch Celestron telescope. Estimate the diffraction limit of this telescope. Estimate the minimum size a feature on the surface of the Sun must have to be resolved by this telescope.
A 55 kg block of ice slides down a frictionless ramp that is 2.0 m long and 0.91 m high. Find the force exerted by the worker
A small plastic ball of mass 5.27 x 10-3 kg and charge +0.118C is suspended from an insulating thread and hangs between the plates of a capacitor, What is the magnitude of the charge on each plate
question1a cylindrical 3.52 kg pulley with a radius of 0.360 m is used to lower a 4.45 kg bucket into a well. the
how much mass can the larger piston support.
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