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Q. How many 109 W lightbulbs can you use in a 134 V circuit without tripping a 12 A circuit breaker? (The bulbs are connected in parallel, which means that the potential difference across each lightbulb is 134 V.)
Q. An artillery shell is fired with an initial velocity of 300 m/s at 45.0° above the horizontal. To clear an avalanche, it explodes on a mountainside 39.0 s after firing. What are the x and y components of the shell where it explodes, relative to its firing point?
x = 1 m y = 2 m
If air resistance is negligible, using energy considerations alone, how fast must the ball be going after it falls 200 meters.
find the potential difference across the capacitor. A conductor consists of a circular loop of radius R and two straight, long sections. The wire lies in the plane of the paper and carries a current I.
A car battery stores about 3.00 MJ of energy. If all this energy were used to generate a uniform electric field of 27.0 kV/m, what volume would it occupy.
At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2.
A 2.8 kg rectangular air mattress is 2 m long, 0.5 m wide, and 0.1 m thick. What mass can it support in water before sinking.
Find out the minimum values of m1 and m2 such that the overlapping of the bright fringes will occur and find position of the overlap on screen.
A horizontal force of 213 N is exerted on a 1.90 kg discus as it rotates uniformly in a horizontal circle (at arm's length) of radius 1.60 m. determine the time for one revolution of the discus. Round the answer to 2 decimal places.
Create horizontal component of the pendulum
An electric field of 300 V/m is confined to a circular area d = 11.1 cm in diameter and directed outward perpendicular to the plane of the figure. If the field is increasing at the rate of 22.0 V/m·s, what are direction and magnitude of the magnet..
What is an average speed of this train
A light source, S, is located 2.60m below the surface of a swimming pool and 1.30m from one edge of the pool. The pool is filled to the top with water.
What is used up electric potential energy of charge carriers
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