A vector isr⇀ = 78.0 m iˆ+278 m jˆ. What is the direction of this vector?

What is the approximate percentage of geologic time that humans have existed on earth since its origin?

True or false the rocks cycle is a slow process

Evidence that a gas consists mostly of empty space is the fact that: (A) the density of a gas becomes much greater when it is liquefied (B) gases exert pressure on the walls of their containers (C) gases are transparent (D) heating a gas increases

The manipulation of natural sounds via the medium of magnetic tape is called

7. A bullet of mass 10g strikes a ballistic pendulum of mass 2kg. The center of mass of the pendulum rises a vertical distance of 12cm. Assuming that the bullet remains embedded in the pendulum, calculate the bullet's initial speed.

A rock is dropped downward from the top of a cliff. If the rock hits the ground after 2.0 s, what's the height of the cliff?

A body moving with an initial velocity of 30m/s accelerates uniformly at the rate of 10m/s. what is the distance covered during the period

Formation of a precipitate is usually evidence of? the separation of a mixture, a chemical change, formation of a mixture, physical change

Two friends are standing on opposite ends of a canoe that is initially at rest with respect to a frictionless lake. The person in the front throws a very massive ball toward the back, and the person in the back catches it.

How does the role of blood protect the body