If a machine has 100% efficiency, it means that

A. output work is equal to input work.

B. output force is equal to input force.

C. output work is twice the input work.

D. output force is twice the input force.

The standard unit of radiation related to biologic hazard is the: A. curie B. roentgen C. neutrino D. bequerel

When compared to others, how is a greater velocity represented on a motion map? with shorter vectors with longer vectors with larger dots with smaller dots

Explain the mathematical equation for KVL (The voltage of a circuit through each component in that circuit is proportional to the resistance).

If 2 balls had the same volume but ball a has twice as much mass as babil which one will have the greater density

What is the momentum of an object at rest, in m/s?

A major obstacle to developing good human relations is that

4.) An apartment building is on fire and a guy is trapped on the fire escape ladder. There is a dumpster that is 6.3m away and is filled full of trash, and he is 7m above it.

Calculate the temperature of and power-per-area radiated from a blackbody if the spectral intensity density peaks at (a) gamma rays, λ = 1.50*10-14 m; (b) x rays, 1.50 nm; (c) red light, 640 nm; (d) broadcast television waves, 1.

How has increased energy use associated with scientific advancements affected society? a. It has led to an increase of the concentration of atmospheric carbon dioxide. b. It has led to an increase in hazardous wastes from mining operations. c.

Water is moving with a speed of 5.7 m/s through a pipe with a cross-sectional area of 4.8 cm2. The water gradually descends 9.2 m as the pipe increases to 8.8 cm2. (a) What is the speed at the lower level? (b) If the pressure at the upper level is 1.