Estimate the order of magnitude of the length of a football field,

a. 10-1 m

C. 104 m

b. 102 m

d. 100 m

A boy throws a ball vertically up and catches it after 3 s. What height did the ball reach?

During a drive by golfer Ai Miyazato, the angular velocity of her club is zero at the top of the backswing and 30 rad/s at the bottom of the downswing just before impact with the ball. If the downswing lasts 0.

A rock of mass 7 kg is being whirled in a horizontal circle on the end of a rope 2.5m long. if the tangential speed of the rock is 2.3m/s, what is the tension in the rope?

Janelle stands on a balcony, two stories above Michael. She throws one ball straight up and one ball straight down, but both with the same initial speed. Eventually each ball passes Michael.

What makes the shaded elements unique

The temperature of a substance during an experiment can be modeled by the function f (x) = - 7.5cos (πx30) + 31.4, where f (x) is the temperature °c and x is the number of minutes into the experiment.

Which of the following are good conductors? A. A rubber tire B. A penny C. A newspaper D. An aluminum soda can E. Water F. Air

Ideentify the two atmospheric layers that contain air as warm as 25 degrees Celsius.

A defensive tackle picks up the 0.5kg football to a height of 0.8m in 0.25s ... 1. calculate the work done 2. calculate the power generated

what is a possible unit for the product VI, where V is the potential difference across a resistor and I is the current through the same resistor?