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Calculate the efficiency of an engine in a power plant operating between 45 ° C and 350 ° C. Remember that the efficiency is a decimal number less than 1.
an electron is shot upward directly perpendicular to the lower plate of a parallel plate capacitor. its initial
a naive model of a solid is a bunch of masses the atoms connected by springs. what is the order of magnitude of the
Air in a cylinder is compressed to one-tenth of its original volume without change in temperature. What happens to its pressure? Imagine now that a valve is opened in order to restore the initial pressure value. What percentage of the molecules..
A 7.1-kg block of aluminum is heated from 30°C to 60°C at atmospheric pressure. Find the work done by the aluminum
An AC voltage source, with a peak output of 200V, is connected to a 50 ohm resistor. What is the rate of energy dissipated due to heat in the resistor
an object is acted on by a drag force with a magnitude that is proportional to the speed. the object accelerates
Two canoes are tied together and traveling down a straight river with the current. Spotting a waterfall, What is the combined mass of this canoe and rider
A daredevil on a motorcycle leaves the end of a ramp with a speed of 39.0 m/s. what is the maximum height that he reaches
You place 3 g of water at room temperature in a pressure cooker (a sealed pot) of volume 2 L and heat the water to 190 degrees C. What is the pressure in the cooker
an aluminum-alloy rod has a length of 10.008 cm at 16.400degc and a length of 10.020 cm at the boiling point of water.a
Estimate the temperature change of the air in 2 h
A circuit contains two elements, but it is not known if they are L, R or C. The current in this circuit when connected to a 9.30×101 V, What is the power dissipated in the circuit
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