If an object moved at 30.0 m/s and at a later time covers half the distance in the same time, calculate its new speed.

A closed container is filled with oxygen. the pressure in the container is 425 kpa. what is the pressure in millimeters of mercury? express the pressure numerically in millimeters of mercury.

A storage battery will conduct: small quantities of charge large quantities of charge only when heated

Instead of rolling down the ramp over the step, imagine the ball falls off the back of the ramp directly to the ground. What is the amount of potential energy remaining after the ball lands on the ground?

A 2500 kg car traveling to the north is slowed down uniformly from an initial velocity of 27.0 m/s by a 7850 N braking force acting opposite the car's motion. What is the car's velocity after 2.52s? How far does the car move during the 2.

As an acapulco cliff diver drops to the water from a height of 42.0 m, his gravitational potential energy decreases by 27,500 j. what is the diver's weight in newtons?

What type of energy comes from the food that we eat?

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen

In which region of the periodic table do the elements NOT normally react chemically with other elements? A. metals B. metalloids C. nonmetals D. noble gases