A student pushes a 40-N block across the floor for a distance of 10 m. How much work was done to move the block? Question 3 options: 4 J 40 J 400 J 4,000 J

What happens to the bond angle when you add or remove an electron domain

A drag racer leaves the starting line and increases its speed up to 200 miles per hour by the time it crosses the finish line. What must have changed? A. only its speed B. only its velocity C. both its speed and its velocity D.

Superman can leap over tall buildings in a single bound. What does he do to the ground beneath him? Assume his mass is 100.0 ± 0.1 kg and his hips drop by 0.300 ± 0.020 m before he jumps.

How many stars, approximately, are in the solar system?

A silk cloth gains electrons when rubbed over a glass rod a different glass rod gains electrons when rubbed with rabbit fur what will happen if the two charged glass rod approach one another and why

Marie and Calvin dissolved 10 grams of KNO3 in 100 grams of water at 25oC. Next they added 5 grams more.

On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. It strikes a red glider that has mass 0.600 kg and that is initially at rest.

f a wave has a wavelength of 9 meters and a period of 0.006, what is the velocity of the wave? A. 1,200 m/s B. 1,500 m/s C. 1,800 m/s D. 1,285 m/s

Using your own words, what is Net Force? What general statement can you make about the relationship between net force and how fast an object changes it's speed?

Define valence electrons and identify the number of valence electrons in an element using periodic table.