Which is more reliable-using a manual stop watch or using light gates?

Explain.

Which of these would be caused by a chemical change?

What is the weight, in pounds, of a 185-kg object on jupiter? express the weight numerically in pounds?

In which state of matter are water molecules measured as having a comparatively high temperature? A. solid ice B. liquid water C. water vapor

Bismuth is the largest stable, naturally occurring isotope. Which of the following is the reason for this limitation?

How are fossil fuels different from renewable energy sources?

An astronaut throws a rock. the rock travels through outer space at a constant velocity. which statement applies to the motion of this rock? A - an unbalanced force is acting on the rock, causing it to accelerate.

El Nino begins with which of the following? -upwelling of cold ocean water -the westward movement of winds and currents in the pacific -heavy mudslides in california and tornadoes in florida -the eastward movement of winds and currents in the

When the water In a water heater gets hot, what type of energy increase

A 2.0-kg ball rolling along a flat surface starts up a hill. If the ball reaches a height of 0.63 m, what was it's initial speed?

To study the properties of various particles, you can accelerate the particles with electric fields. A positron is a particle with the same mass as an electron but the opposite charge (e).