Find the total rate of energy rejected to the ambient
A car engine produces 136 hp on the output shaft with a thermal efficiency of 30%. The fuel it burns gives 35,000 kJ/kg as energy release. Find the total rate of energy rejected to the ambient and the rate of fuel consumption in kg/s.
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According to a recent survey, high school girls average 100 text messages daily (The Boston Globe, April 21, 2010). Assume the population standard deviation is 20 text messages. Suppose a random sample of 50 high school girls is taken What is the
Point charges q1, q2, and q3 are fixed at the vertices of an equilateral triangle whose sides are 2.40 m long. Find the electrostatic potential energy of this system of charges for the following charge values.
A 75 kg skydiver can be modeled as a rectangular box withdimensions of 20cm x 40 cm x 1.8 m. What is the terminalspeed if he falls feet first.
The bond length of HF is 91 x 10-12 m. (a) Where does the axis of rotation intersect the molecular axis? (b) Calculate the zero point rotational energy.
A 50 kg copper block initially at 350 C is quenched in a closed, rigid insulated tank containing 120 L of liquid water at 25 C. Determine the entropy change (kJ/K) of liquid water.
A 46-cm-long wire with a mass of 10.4 g is under a tension of 52.5 N. Both ends of the wire are held rigidly while it is plucked. (a) What is the speed of the waves on the wire?
Estimate the net amount of work done by the mass on the ideal gas, the amount of energy dissipated as friction, and the net heat flow through the walls of the cylinder.
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Identify and discuss the six party systems in U.S. history. Be sure to note the key issues of each system as well as the dominant and subordinate parties
What are some of the differences between the Democratic and Republican Parties? What policies does each party advocate for?
Since 1854, the United States has mainly operated under a two- Party system dominated by the Democratic and Republican parties.
I believe voting for any 3rd party should not be considered wasting a vote. Voting should be for everyone who can and shouldn't exclude for the two parties.
A public policy decision affects thousands of residents, but only major donors and industry lobbyists are invited to private meetings
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Given this, is voting for a third-party candidate in a presidential election wasting your vote? Why or why not? Should we consider third parties at all?