The force applied when using a simple machine

Which of the following is an acidic pH? A. 6.0 B. 7.0 C. 8.0 D. 9.0

Give the name of the element that is represented by the atomic symbol Fe. A) Fermi B) Ferrous C) Igneous D) Iron

On his fishing trip Taylor takes the boat 12 km south. The fish aren't biting so he goes 4 km west. He follows a school of fish 1 km north. What distance did he cover? What was his displacement (magnitude and direction) ?

When two lenses of focal length 10 centimetre and - 5 CM placed in contact then find the net power

If a force does not act parallel to the resulting displacement, what is the effect on the work done by the force?

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.