Yosef applies an input force of 50 N to a crowbar. The crowbar applies a force of 750 N to the lid of a crate. What is the mechanical advantage of the crowbar?

The mechanical advantage of the crowbar is

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Magnesium is a highly flammable element which is easily combustible in the presence of oxygen: 2Mg + O2 - ->? + heat How many atoms would you expect to find on the product side of this equation?

What is the relationship between gravity and pressure in a nebula? A.) Gravity reduces pressure. B.) Pressure balances gravity. C.) Pressure increases gravity. D.) None of the above.

If the nile river empties into the mediterranean sea in which direction does it flow

Which theory best explains the present arrangement of continents oceans and landforms on earth? A the Pangaea theory B The continental puzzle theory C plate tectonic theory.

The ability to do work or cause change is a. energy. b. data. c. science. d. technology.

What is the safest place to be amid the coronavirus?

What is the change in internal energy if 60 J of heat are added to a system and the system does 40 J of work on its surroundings? Use AU = Q-W.

A 35-N bucket of water is lifted vertically 3.0 m and then returned to its original position. How much work did gravity do on the bucket during this process?

You then decide to throw another disc to your friend in the tree for fun. If you throw the disc at a speed of 10 m/s and your friend catches it 5.0 m above you, what was the speed of the disc just before your friend catches it

Which is true? An ideal emf device has internal resistance and a real emf device does not. A real emf device sets up a potential difference and an ideal emf device does not.