What is the electric force that these objects exert
Assume that you have two objects, one with a mass of 10 kg and the other with a mass of 16 kg, each with a charge of -0.029 C and separated by a distance of 8 m. What is the electric force that these objects exert on one another?
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Suppose a satellite is in a circular orbit 4.225 Earth radii above the surface of the Earth (5.225 Earth radii from the center of the Earth). By how much does it have to increase its speed in order to be able to escape Earth? [Hint: You need to c
A small current element I d, with d = 3 mm and I = 1.9 A, is centered at the origin. Find the magnetic field d at the following points.
In a head-on collision, a car stops in 0.24 from a speed of 25 . The driver has a mass of 74 , and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fraction of a second?
The mass of the motor is four times the mass of the module. What is the speed (in km/h) of the command module relative to Earth just after the separation?
Find the acceleration of the elevator(magnitude and direction). (b) What is the acceleration if the scale reads 670N? (c) if the scale reads zero, should the student worry?
A hollow spherical shell has mass 8.15 kg and radius 0.220 m. It is initially at rest and then rotates about a stationary axis that lies along a diameter with a constant acceleration of 0.880 rad/s^2. What is the kinetic energy of the shell after
Megan's mass is 30 kg. She climbs the 4.8 m ladder of a slide and reaches a velocity of 2.8 m/s at the bottom of the slide. How much work was done by friction on Megan? Assume that air resistance is negligible.
The distance between the first and fifth minimum on a screen 60 cm behind the slits is 6.0 mm. What is the wavelength of the light used in this experiment?
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