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Two small, positively charged spheres have a combined charge of 5.02×10-5 C. If each sphere is repelled from the other by an electrostatic force of 1.00 N when the spheres are 1.85 m apart, what is the charge on the sphere with the smaller charge?
After a day of testing race cars, you decide to take your own 1410 kg car onto the test track. While moving down the track at 10m/s, you uniformly accelerate to 31m/s in 10 s. What is the average net force that you have applied to the car througho..
A grandfather clock is controlled by a swinging brass pendulum that is1.2m long at a temperature of28°C. What is the length of the pendulum rod
q1. a student who weighs 510 n is wearing a backpack that weighs 70 n. the student is standing still on a level ground.
A 1.2 kg ball drops vertically onto a floor, hitting with a speed of 20 m s-1. It rebounds with a speed of 10 m s-1. What impulse acts on the ball during the contact
A circular wire loop whose radius is 18.0 cm carries current of 2.30 A. Calculate the magnetic dipole moment of the loop
If you bring a negatively charged insulator near two uncharged metallic spheres that are in contact and then separate the spheres, what will be the charge of the right sphere
An excited H atom the e- is in 4d. The atom is in an external magnetic field. What are the smallest and largest possible angles
The pilot of an airplane notes that the compass indicates a heading due west. The airplane's speed relative to the air is 120 km/h. Find the velocity of the airplane relative to the ground
A large tree trunk is floating in the sea. The density of the sea water is 1040 kg/m3, What fraction of the trunk's volume is above the surface of the water
A proton moving with a speed of 4.00 · 105 m/s in the positive y-direction enters a uniform magnetic field of 0.400 T pointing in the positive x-direction
A 500 g ball swings in a vertical circle at the end of a 1.4-m-long string. When the ball is at the bottom of the circle, What is the speed of the ball at that point
A 10. kg blocks rests on a table (on Earth) and 0.50 is the coefficient of static friction. what is the maximum horizontal pull that will not move the block
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