George walks to a friend's house. He walks 750 meters North, then realizes he walked too far. He

wrns around and walks 250 meters South. The entire walk takes him 13 seconds. What is his speed

per second?

A plane traveled 500 miles east and landed in Arizona. then it traveled another 500 miles east and lands in California. The entire trip took 5 hours. What is the average velocity of the plane?

The density of an object is. 835 g/cm3. If its volume is 34 cm3, what is the mass of the object?

The law of conservation of momentum states that a. the total initial momentum of all objects interacting with one another usually equals the total final momentum. b.

What relationship exists between the amplitude of a wave and amount of disturbance in the water?

Which airspace is defined as a transition area when designated in conjunction with an airport which has a prescribed IAP?

Which of the following is a vector quantity (a) mass (b) speed (c) time (d) acceleration

A 85-kg astronaut (including spacesuit and equipment) is floating at rest a distance of 11 m from the spaceship when she runs out of oxygen and fuel to power her back to the spaceship. She removes her oxygen tank (3.

Find the specific gravity of the rose quartz. Specific gravity = density of of water. What are the units for specific gravity?

A ball of mass 5.0kg is lifted off the floor a distance of 1.7m. 1. What is the change in the gravitational potential energy of the ball? 2. Now you release the ball from rest, and it falls to the floor.

What is the device to break a circuit called?