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A 16.0-\Omega and a 20.0-\Omega resistor are connected in parallel. A dissimilarity in potential of 40.0 V is applied to the combination.
1. What is the current in the circuit?
2. How large is the current through the 16.0-\Omega resistor?
3. Calculate the equivalent resistance of the parallel circuit.
A violinist is tuning her instrument to concert A (440 Hz ). She plays the note while listening to an electronically generated tone of exactly that frequency, What was the frequency of her violin when she heard the 4.00 beat
The weight of passengers on a roller coaster increases by 57 as the car goes through a dip with a 39 radius of curvature. What is the car's speed at the bottom of the dip
After fixing a flat tire on a bike you give the wheel a spin. Calculate for what length of time did the wheel rotate
What is the period of oscillation of the scale? State your reply numerically in seconds.
A 3000 Newton force stretches a wire by 4.0 millimeter. A third wire of the same material is twice as long as the first and has the similar diameter. Evaluate how far is it stretched by a 4000 N force
The inner and outer surfaces of a 5m x 6m brick wall of thickness 30 cm and thermal conductivity 0.69 W/(m x degree C) are maintained at temperatures of 20C and 5C. Determine the rate of heat transfer through the wall in W.
a crowbar 2m long is used to lift a rock 800n. if the fulcrum is 0.25m from where the crowbar touches the rock, how much effort must be applied to move the rock
A rifle is aimed horizontally at a target 50 m away. The bullet hits the target 2.0 cm below the aim point. What is the bullet's flight time
A telephoto lens consists of a converging front lens of focal length f1 and diverging back lens of focal length f2 separated by a distance d. Compute the effective focal length of the lens system
A skater embeds a firecracker in large snowball and pushes it across a frozen pond at 7.6 m/s. The firecracker explodes, breaking the snowball into two equal-mass chunks. One chunk moves off at 9.3 m/s at 19° to the original direction of motion. Disc..
a proton accelerates from rest in a uniform electric field of 638 nc. at some later time its speed is 1.28 x 106 ms.a
A sky diver of mass 60 kilogram can slow herself to a constant speed of 93 km/h by orienting her body horizontally, Determine the magnitude of drag force on the sky diver
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