A sled is moving at a constant speed down a surface inclined at 45 degrees with the horizontal and travels 30meter in 4 seconds. calculate the vertical velocity of the self at the end of 4 seconds

Many meteorites appear to have formed very early in the solar system's history. How do these meteorites support our theory about how the terrestrial planets formed

Which statement best describes insulators? Free electrons can move to other atoms Electrons within their atoms are strongly held by the nuclei Permits charged particles to move freely through it Most electrons within their atoms are unpaired

an object is dropped from the top of the building through the air friction is present to the ground below how does this kinetic energy just before striking the ground compared to its gravitational potential energy at the top of the building

Which of the following statements about Ohm's Law is true? A. Increasing the voltage decreases current. B. Keeping the same voltage and decreasing resistance decreases the current. D. To increase the current, decrease the resistance.

Which best describes a wave?

How is ecology diffrent from earth science

Which theory was first proposed by Albert Einstein? A. the theory of special relativity B. the theory of universal gravitation C. the theory of inertia D. the theory of radioactivity ... the answer is A i just found out

For each of the following, describe the relationship as directly or inversely proportional: a) wavelength vs. frequency b) wavelength vs. energy c) frequency vs. energy ... ?

Can hand sanitizer be used as rubbing alcohol

Two objects experience a 12 N electrical force between them. What force will the objects experience if the distance between them is doubled?