What is the definition of mechanical energy

1) A star burst can be defined as stars formed from recycled dead star materials. True or False 2) When the Milky Way was in its earliest ages, hydrogen, helium and other common elements were the only ones around.

A 7.0-N force parallel to an incline is applied to a 1.0-kg crate. The ramp is tilted at 20° and is frictionless. (a) What is the acceleration of the crate? (b) If all other conditions are the same but the ramp has a friction force of 1.

Pluto is different from the outer planets in all of the following ways except which one?

Lenz's law states that an induced magnetic field in a conductor

What is used to find true north on a compass? a. equator c. magnetic declination b. prime meridian d. cardinal directions

Is an engine-activated booster unit that reduces the effort required to apply the hydraulic brakes

A box is lowered using a rope. If the acceleration of the box, is 2.5 m/s2 (downward) and the tension in the rope is 31 N, what is the mass of the box (in kg) ?

On a very hot summer day, the rooms on the first floor of a house stay cooler than the rooms on the second. Which form of thermal energy flow causes this to occur? A) Conduction B) Convection C) Kinetic D) Radiation

What is a ion in science?

I'm a bit confused A basketball is thrown upwards. The height f (t), in feet, of the basketball at time t, in seconds, is given by the following function: f (t) =