Why is the mechanical advantage of using a single pulley always 1? Assume there's no friction.

Examples include glycogen granules and ingested foreign materials. True or False

Why does the falling speed of a ball keeps increasing every second when it is dropped from a building?

How are NGC 1427A and U different? How are they the same?

An object is moving to the left with a constant speed. What can be concluded about the forces acting upon the object?

Acceleration occurs when an object changes

How do whales bats and dolphins use echolocation? A To scare away predators B To attract mates C To orient them selves and find food D To tell animals of there species where they are

How much force would be needed to move a car with the mass of 100kg to an acceleration of 5m/s/s?

A pendulum bob is made from a sphere filled with water. What would happen to the frequency of vibration of this pendulum if the sphere had a hole in it that allowed the water to leak out slowly?

Elias serves a volleyball at a velocity of 16 m/s. The mass of the volleyball is 0.27 kg. What is the height of the volleyball above the gym floor when its total mechanical energy is 41.70 J? Round to the nearest number.

Which of the following is the best description of a graph? A. Equations that can be plotted B. A representation of an equation C. Independent and dependent variables D. x and y lines