Which of the following is an important part of scientific methods?

A. using calculators

B. Teaching others

C. Traveling to different places

D. Making hypothesis

What is the name of the imaginary line that lies 23 degrees south of the equator and marks the southern boundary of the area known as the tropics?

What must the charge (sign and magnitude of a particle of mass 1.48 g be for it to remain stationary when placed in a downward-directed electric field of magnitude 640 n/c? use 9.81 m/s2 for the magnitude of the acceleration due to gravity?

What do radio waves and microwaves have in common

A car has a mass of 1200kg what is it's acceleration when the engine exerts a force of 600 n

An electric heater has a Nichrome heating element with a resistance of 9 Ω at 20oC. When 112 V are applied, the electric current heats the Nichrome wire to 1090oC.

Why does momentum have a direction?

What is the difference between weight and mass?

An object has a mass of 8.00 kg. What is the gravitational force on the object by the earth?

Which of the following best characterizes the free energy change ΔG for an endothermic reaction under physiological conditions? A. The sign of ΔG is positive B. The sign of ΔG is zero C. The sign of ΔG is negative D.

In a recent hockey game, one player (m=100kg) was moving at a velocity of 8 m/s when he ran into another player (m=300kg) who was at rest (v=0m/s). After the collision, the two players were stuck together (moving with the same velocity).