Which substance requires the most heat to melt 1 kg of the substance? A. Copper B. Mercury C. Gold D. Helium

What causes the moon to appear bright in the sky

The measure of how far an object moves in a given amount of time

It takes a person one half hour to run 6 kilometers at a constant rate along a straight-line path. What is the velocity of the person?

Most white dwarfs are __ most giant stars. A) hotter than B) cooler than C) the same temperature as

Why do experiments remind you of science? explanation

A rock is thrown from a cliff and hits the ground five seconds later at a distance of 50 m from the cliff how high was a cliff

A 15.0 m long plane is inclined at 30.0 degrees. If the coefficient of friction is 0.426, what force is required to move a 40.0 kg mass from rest at the bottom on the plane to the top of the plane with a final velocity of 8.00 m/s?

In a pig-calling contest, a caller produces a sound with an intensity level of 60 db. how many such callers would be required to reach the pain level of 120 db? 2 incorrect: your answer is incorrect.

Why is the use of scientific names important in biology?

1) what is a calorie?