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Two point charges are separated by d= 10 cm and have charges of q1= +2(mu)C and q2= -2 (mu)C, respectively. (ke=8.99x10^9 N*m^2/C^2)
(a) What is the magnitude of the electric force between the two charges?
(b) What is the electric field at a point midway between the two charges?
(c) What is the electric potential at a point midway between the two charges?
The sound produced by the loudspeaker has a frequency of 12002 Hz and arrives at the microphone via two different paths. The sound travels through the left tube LXM that has a fixed length.
An insulated Thermos contains 119 cm3 of hot coffee at 64 °C. You put a 12g ice cube at its melting point to cool the coffee. By how a lot of degrees have your coffee cooled once the ice has melted and equilibrium is reached.
A 77 person stands on the uniform ladder 4.0 long, that weighs 100. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only the normal force.
10 A of current flows through a wire oriented perpendicular to a magnetic field strength of .2T, What is the magnetic force per unit length on the wire?
The mass of each can be taken to be 37,000 . If the train is accelerating at on a level track, elucidate the tension in the coupling between the second and third cars? The car nearest the locomotive is counted as the first.
Two carts with masses of 5.00 kg and 2.64 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.46 m/s correspondingly. The carts stick together after colliding head-on. Find the final speed.
A small sphere with a charge of -5.9 10-7 C is placed in a uniform electric field of magnitude 1.9 106 N/C pointing to the west. What is the magnitude and direction of the force on the sphere due to the electric field?
A person wearing a seat belt can withstand an acceleration of -3.0 x 10^2 m/s^2. Explain how thick should barriers be to safely stop a car that hits a barrier at 110 km/h?
What slit separation will produce first-order maxima.
A 1530 kg car is travelling with the speed of 15.0 m/s. What is the magnitude of the horizontal net force that is required to bring the car to the halt in a distance of 40.00 m.
The first player has an acceleration whose magnitude is 0.5 m/s^2 and the second player's has an acceleration of 0.3 m/s^2. Explain by how much time passes before hey collide?
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1020 Hz. The bird-watcher, however, hears a frequency of 1060 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?
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