What is the terminal velocity of a penny falls off a skyscraper

How many copies of a gene does an organism have in its cells

A marble rolls off a table with a speed of 2.30 m/s. If the table is 1.12 m high, how far from the base of the table does the marble land? (Find the time in the air first.)

What is the difference between chemical and physical changes

A bowling ball has an initial momentum of + 30 kg m/s and hits a stationary bowling pin. After the collision, the bowling ball leaves with a momentum of + 13 kg • m/s.

A hollow aluminum cylinder 19.0 cm deep has an internal capacity of 2.000 L at 23.0°C. It is completely filled with turpentine at 23.0°C. The turpentine and the aluminum cylinder are then slowly warmed together to 91.0°C.

Two children pulling the rope with the same force in opposite direction is that an unbalanced force or a balanced force

During sublimation particles in a solid room deodorizer move directly into the air as a gas how does the movement of the deodorizer particles change? the particles ___.

A 50-g ball rolls across the table at 2 m/s. A 100-g ball rolls across the same table at 1 m/s. Which ball has more momentum?

The cross section area of a hole is 725cm^2. Given that the area of a circle is A=3.14r^2, find the radius of the hole.

How long does it take the moon to go from full-moon phase to new-moon phase