What is the main reason that the earth's interior is liquid today? tidal force of the moon on the earth seismic waves that travel through earth's interior decay of radioactive elements convective motions in the mantle?

The index of refraction of silicate flint glass for red light is 1.620 and for violet light is 1.660. A beam of white light in this glass strikes the glass-air interface at a 25.50∘ angle of incidence and refracts out into the air.

When resistance force is increased on a lever which of the following happens to the effort force?

The electric force between two charged particles is 0.18 newtons. If the distance between them is increased by a factor of 3.0, what will the new electric force be? A. 0.36 newtons B. 0.02 newtons C. 0.06 newtons D. 1.62 newtons

The Sun rotates faster at its center than at its poles. Which statement in this passage describes the reason for this behavior?

After a wave passes through a medium particles in the medium

A series circuit contains three 2 Ω resistors and a 6 Ω resistor. The current in each resistor is 4.0 A. What is the voltage of the battery in the circuit? 2.0 V 3.0 V 32 V 48 V

A solid metal ball and a hollow plastic ball of the same external radius are released from rest in a large vacuum chamber. When each has fallen 1 m, they both have the same?

Juan is interested in finding out whether hummingbirds are attracted to some flowers more than others. In what order should Juan perform the steps of his experiment?

Will make Brainlest! <3 Metals are considered to be good conductors of heat. How do the specific heat values indicate this?

Which example identifies a change in motion that produces acceleration? choices are: 1. a speed skater moving at a constant speed on a straight track 2. a ball moving at a constant speed around a circular track 3.