What are illuminated objects?

A metal sphere A has charge Q. Two other spheres, B and C, are identical to A except they have zero net charge. A touches B, then the two spheres are separated. B touches C, with C grounded during this contact, then those spheres are separated.

Projectile motion is an example of what kind of motion

Would time travel mean that parallel universes would be created off our linear time sequence to ensure the universe doesn't collapse itself because of significant events being drastically changed in the way it shapes the universe?

Protons are what charged and electrons are what charged

As your rockets went upwards how would you describe how the energies changed?

A skater wearing in - line skates (no friction) is standing in the middle of the aisle inside a bus and is not holding on to anything.

A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve y=ax2 about the y-axis.

The movement of thermal energy from hot to cold materials is called

An object initially at rest explodes in two fragments of masses 5 kg and 7.5 kg that move in diametrically opposite directions. If the speed of the first fragment is 8.1 m/s, find the internal energy of the explosion.

Blank the constant velocity of a falling object when the force of air resistance is equal to the force of gravity