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Resistors 1 and 2 are connected to identical batteries, resistor 1 dissipates 4.0 times more power than resistor 2.
What is the ratio P1/P2 of their power dissipations if the same current passes through each resistor?
A thin, horizontal copper rod is 1.10 m long and has a mass of 203 g. What is the minimum current in the rod
A 11.0 g bullet is fired horizontally into a 109 g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 146 N/m. what was the speed of the bullet at impact with the block
If an object is placed between two parallel thin plane mirrors, an infinite number of images result. Find the distance of the images formed from the object
A long horizontal wire carries 13.0 A of current due north. Calculate the angle relative to the horizontal with up as the positive direction
q1. a 14 g bullet travelling at 247 ms is fired into a 0.459 kg wooden block anchored to a 100 nm spring. how far is a
The front 1.20 meter of a 1300 kilogram van is designed as a "crumple zone" that collapses to absorb the shock of a collision. Find the magnitude of the average force on the van
An ac circuit contains a resistor with a resistance of 8.1ohms. The resistor has an rms current of 0.14A. Find the average power delivered to the resistor
The length of a telescope is 2 meter and the focal length of the objective is 2 centimeter. Evaluate what is the focal length of the eyepiece
Assuming that the total energy consumption scales in the same way as BMR, how many Calories are needed by the person weighing 150 lb
The Fermi energy of copper at 300 K is 7.05 eV. What is the average energy of a conduction electron
At rest, the car's horn sounds at a frequency of 455 Hz. The horn is sounded while the car is moving down the street. A bicyclist moving in the same direction with one-third the car's speed hears a frequency of 427 Hz. What is speed of the car.
Suppose the device is used at a service station to measure the flow rate of gasoline (? = 7.00 102 kg/m3) through a hose having an outlet radius of 2.56 cm. Find the speed of the gasoline as it leaves the hose
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