1. Suppose you know that the net force on an object is zero. What can you say about

(a) the acceleration of the object?

(b) the velocity of the object?

Tragically, the united states lost astronauts in accidents involvin

How many protons are in this atom if it has a balanced charge? 0 2 4 6

The efficiency of a modern bicycle is 95% if you exert 200 Joules of input work pedaling a bicycle on level ground what is the useful output work?

An alternating current in a wire has a voltage of 2,800 V. It needs to be reduced 70 V. The wire makes 120 turns in the primary coil of a step - down transformation. How many turns of wire need to be in the secondary coil?

A 4.20 gg coin is placed 15.0 cmcm from the center of a turntable. The coin has static and kinetic coefficients of friction with the turntable surface of μsμsmu_s = 0.700 and μkμkmu_k = 0.420.

What are some ways the oceanic crust and the continental crust are alike?

Why is gangue sometimes reprocessed.

4.7 cm. The tube is sealed at one end and loaded with lead shot to give it a total mass of M = 130 g. The tube floats in water (of density 1 g/cm3) in vertical position, loaded end down.

Why is it incorrect to say that vascular tissue, gametophytes, and fronds are all found mosses

Can the validity of a model be limited, or must it be universally valid? How does this compare to the required validity of a theory or a law?