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A proton (mass 1.67 x 10^-27 kg) is moving at 1.30 x 10^-6 m/s directly toward a stationary helium nucleus (mass 6.64 x 10-27 kg ). After a head-on elastic collision, what is the proton's velocity?After a head-on elastic collision, what is the helium's velocity?
A listener increases his distance from a sound source by a factor of 3.03. what is the change in the sound intensity level in dB
A ring of charge of radius R meters has a constant charge density -lambda distributed uniformly along its length. Find the expression for |E| near the center of the ring
What is the charge on each sphere if the two charges are alike?
A photographic image of a building is 0.0920 m high. The image was made with a lens with a focal length of 55.0 mm. determine the height of the building.
Two 2.00 cm diameter disks spaced 2.239 mm apart from a parallel plate capacitor. The electric field between the disks is 445,140.438 V/m. What was the electron's speed as it left the negative plate
A 20 kg satellite has a circular orbit with a period of 2.8 h and a radius of 7.9 106 m around a planet of unknown mass. what is the radius of the planet
The dispersive power of crown and flint glasses are 0.03 and 0.05 respectively. If diffrence in the refractive indices for blue, calculate the angles of the two prisms for a deviation of 2 degree without dispersion
The rectangle shown in Figure P3.57 has sides parallel to the x and y axes. Find the perimeter of the rectangle
A camera lens is initially set at f/16 for a shutter speed of 1/160s. what is the proper shutter speed at this setting
A high-intensity desk lamp is rated at 75 W, but its bulb requires only 9 V. The lamp contains a transformer that converts 110 V household electricity. What is the resistance of the bulb when it is on
An observer moving at a speed of 0.860 c relative to a rod (Fig. P26.14) measures its length to be 2.00 m, What is the orientation angle in a reference frame moving with the rod
Explain what is the current in the cell during this period? Assume that the gold ions carry one elementary unit of positive charge.
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