What is the minimum hose diameter of an ideal vacuum cleaner that could lift a 14 kg dog off the floor?

What is the most important task of a spark plug? A) It ensures the air and fuel mix properly. B) It ensure that the air/fuel mixture does not self-ignite. C) It provides the spark to ignite the air/fuel mixture.

A microwave transmitter has an output of 0.1W at 2 GHz. Assume that this transmitter is used in a microwave communication system where the transmitting and receiving antennas are parabola, each 1.2m in diameter. a.

For each balloon game you win at the fair, you get 5tickets. Jamal won 9 ballon games, gray won 6 balloon games. Do they have enough tickets altogether for a prize that is worth 100 tickets?

How does the invention of electrical lights and automobiles impact the world today? Explain. (1 paragraph minimum)

An incompressible fluid flows along a 0.20-m-diameter pipe with a uniform velocity of 3 m/s. If the pressure drop between the upstream and downstream sections of the pipe is 20 kPa, determine the power transferred to the fluid due to fluid normal

A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.

A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.

A scientist who is evaluating an ancient human skeleton for signs of vitamin and nutrient deficiency is conducting:

Which of the following is required in order to make a protected left turn A. A left green arrow B. No oncoming traffic C. A left turn only lane D. A large enough gap

At steady state, a cycle develops a power output of 10 kW for heat addition at a rate of 10 kJ per cycle of operation from a source at 1500 K. Energy is rejected by heat transfer to cooling water at 300 K.