Which force is responsible for producing a stable

nucleus by opposing the electrostatic force of

repulsion between protons?

(1) strong (3) frictional

(2) weak (4) gravitational

An object moving in a straight line changes its velocity uniformly from 2m/s to 4 m/s over a distance of 12 m. What was its acceleration? (A) 0.5 m/s^2 (B) 1 m/s^2 (C) 2 m/s^2 (D) 3 m/s^2

4. A helicopter is flying at a height of 1.5km. If it has 50MJ of G. P. E., what is the mass of the helicopter?

Which of these characteristics can only be attributed to a wave of red light?

Simple Circuit and Ohm's Law Check-for-Understanding A circuit consists of a resistor and a battery. Increasing the potential difference of the battery while keeping the temperature of the circuit constant would result in an increase in neither

The lymphatic system produces eggs and protects the fetus.

Which component of a motor causes the magnetic field produced by the coil to regularly reverse and therefore always be repelled by the fixed magnetic field

What is a parallelogram

If the force exerted by a canon on a cannonball is equal to the force exerted by a cannonball on a canon why does the cannonball move so much farther than the canon?

A teacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and pH indicator strips, which measure acidity.

What are geothermal heat pumps used for? a. Cooling and heating buildings b. Cooling buildings c. Heating buildings d. Heating water for using in homes