A force of 20 N is executed to raise a rock weighing 30 N. What is the actual mechanical advantage?

East-West orbits are best for: military observation radio and television environmental studies remote sensing

Which is an example of inertia? A moving car changes direction. Increasing the velocity of a train makes it harder to stop. Adding mass to a moving car makes it harder to stop.

If your car runs out of gas and you must push it 250 m to the nearest gas station. How much work is done on the car if it is pushed with a constant force of 7 N.

A geostationary satellite has a orbital radius of 4.23*10.7m. a). calculate it's speed in orbit

A machine that provides both constant speed and maximum resistance throughout the full range of motion provides what type of muscular contraction?

Which would react chemically by forming an ionic bond? A. 2 chlorine atoms with 7 valence electrons each B. 1 neon atom with 8 valence electrons and 1 lithium atom with 1 valence electron C.

Which of these are considered an oxidizing mutagenic agent? x-rays benzopyrene gamma rays

5. A B note has a frequency of 493.88 Hz. Calculate its wavelength in meters.

When one of the electrons of a particular atom undergoes a transition to a quantum state of lower energy, it a) collides with another of its electrons b) exchanges quantum states with another of its electrons c) undergoes a transition to a quantum

What's the symbol for an ionized bromine atom?