Two colours of light which mix to make white light are called

a) primary colours

b) secondry colous

c) complementary colours

d) dye

Im what direction does heat flow or transfer?

If the mass of a material is 77 grams and the volume of the material is 19 cm3, what would the density of the material be

A solid conducting sphere of radius 2.00 cm has a charge of 8.84 μC. A conducting spherical shell of inner radius 4.00 cm and outer radius 5.00 cm is concentric with the solid sphere and has a charge of - 2.02 μC.

Which of the following is formed by constructive erosion? 1. delta 2. gully 3. rill 4. glacier

If salt water was heated the water turns into steam while the salt remains

If a negatively charged particle enters a region of uniform magnetic field which is perpendicular to the particle's velocity, will the kinetic energy of the particle increase, decrease, or stay the same?

The horizon moon appears to shrink in size if it is viewed through a narrow tube that eliminates the perception of distance cues. This best illustrates the importance of: a) convergence b) closer, farther away c) context effects d) none of thses

A bow is pulled back with 89.0N of force a distance of. 600m and shoots a 300kg arrow straight up. What is the work done on the arrow? 0.00J 53.4J 26.7J 16.0J

A stationary rock is pushed off a very high cliff. Which graph correctly represents the acceleration due to gravity as the rock undergoes free fall to the ground?

What do you think would happen to the mass if the reaction took place inside a sealed plastic bag?