Which of these describes an exothermic reaction?

1. energy is released by the reaction

2. energy is absorbed by the reaction

3. no energy is transferred by the reaction

4. energy is created in the reaction

A man travels 8,000 meters in 20 mins how fast is he going

In a series circuit, what effect will adding more resistors to the circuit have? It will decrease the equivalent resistance which will decrease the total current. It will increase the equivalent resistance which will decrease the total current.

What is the efficiency of a 0.60 kg basketball that, one dropped from a 2.0 m height (from basket rim), rebounds to 1.2 m in height (G = 10 N/KG)

If the strength of the magnetic field at A is 48 units and the strength of the magnetic field at B is 3 units, what is the distance to B? (Drawing is not to scale!) 400 m 25 m 80 m 20 m

A projectile leaves a gun at the same instant that the target is dropped from rest. If the projectile is initially aimed straight at the target, will it hit the target?

A scientific theory becomes more widley accepted as it explains more and more?

5. The number of bonds an atom can form is represented in an electron dot diagram by A. pairs of dots B. unpaired dots C. total number of dots

A resistor has a current of 2 amperes when connected to a single battery. If a second identical battery is connected in series with the first, what is the current through the resistor? a) Still 2 amps b) 4 amps c) 1 amp d) no current

Describe some basic guidelines for safe PRE

Why is the liver important in digestion