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A point charge of -6.8 µC is at the origin.
(a) What is the electric potential due to this charge at (-2.0 m, 0)?
(b) What is the electric potential to this charge at (2.0 m, -2 m)?
2.1 g of helium at an initial temperature of 120 deg C and an initial pressure of 1.0 atm undergo an isothermal expansion until the volume has doubled. What is the change in thermal energy of the gas
A steel cable with total length 30 m and mass 100 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
if you have swam one lap in a swimming pool that means you have swam from one end to the other and back. in 4 h a
If a car accelerates from 5 m/s to 15 m/s in 2 seconds, what is the car average acceleration
a 10 kg box is pushed along a frictionless horizontal surface by a horizontal force of 50n. if the box starts from rest
Ice of mass 48.0 g at -9.8° C is added to 204 g of water at 15.1° C in a 109 g glass container of specific heat 0.200cal/g-°C at an initial temperature of 25.7° C. Discover the final temperature of the system.
A small glass bead has been charged to + 20.0nC. A metal ball bearing 2.80cm above the bead feels a 1.20 × 102 N downward electric force. What is the charge on the ball bearing
Judy (mass 45.0 kg), standing on slippery ice, catches her leaping dog, Use the conservation of momentum to find the speed of Judy and her dog after the catch
Parallel conducting tracks, separated by 2.79 cm, run north and south. There is a uniform magnetic field of 1.27 T pointing upward (out of the page). What is the direction of the magnetic force on the rod
A 20.00 kg wood ball hangs from the 1.10 long wires. The maximum tension the wire can withstand without breaking is 600 N. A 0.710 kg projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectil..
A charge of 0.43 C is spread uniformly throughout a 36 cm rod of radius 7 mm. What are the volume and linear charge densities?
A simple pendulum is made of a small blob of mass m = 7.000 kg attached to the end of an inextensible wire. The angular amplitude of oscillation is ?0 = 7.162°. What is the magnitude of the tension in the wire when the blob is directly below its poin..
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