Which of these is a mixture of compounds?

A) sodium (NA) and magnesium (Mg)

B) lithium (Li) and table salt (NaCl)

C) CO2 and CH4

D) hydrogen (H2) and oxygen (O2) combining to make water H2O

Two charges that are 2 meters apart repel each other with a force of 2 x 10-5 newton. If the distance between the charges is decreased to 1 meter, the force of repulsion will be A) 1 x 10-5 N B) 4 x 10-5 N C) 8 x 10-5 N D) 5 x 10-6 N

The three types of stress that act on Earth's rocks are compression, tension, and A. tephra. B. shale. C. tension. D. shear.

A wheel rotates without friction about a stationary horizontal axis at the center of the wheel. A constant tangential force equal to 89.0N is applied to the rim of the wheel. The wheel has radius 0.100m.

The most effective way to process biodiversity is through A-captive breesing B-habitat destruction C-habitat preservation D-habitat fragmentation

Newton's first law describes the tendency calles

Which is a derived unit? A Meter B Second C Kilogram D Newton

What is the period of vibration for a wave with a frequency of 150 hertz?

What direction do s waves move in

A car has an initial velocity of 11.2 m / sec. the car accelerates at 10.0 m / s2 for 8.0 seconds. what is the velocity of the car at the end of the 8.0 seconds?

You're going to open the door further by giving it a brief, hard push. first, you'll push the door at its center. then, you'll push it near the door knob. both pushes are equally hard, and last the same length of time.