Why are scientific models useful

On a popular amusement park ride, the riders stand along the inside wall of a large cylinder with a diameter of 8.27 m. The cylinder rotates and when it reaches a rotational frequency of 0.66 revolutions per second the floor drops out.

As the temperature increases, materials with coefficients of linear expansion increase a lot in size, while materials with small coefficients of linear expansion increase a little in size,

If Vector A is (3, 0) and Vector B is (-3, 3), what is the resultant?

A light plane must reach a speed of 33m/s for takeoff. how long a runway is needed if the the acceleration is 3.0m/s^2

Explain how overgrazing can lead to dessert-like conditions and correctly? give examples of 3 ways ranchers can use rangelands sustainably

To determine waves frequency you must know the what

What is the average speed in miles per hour of the car that traveled a total of 200 miles in 5.5 hours

A solid weighs 277.5 g in air and 212.5 g when totally immersed in the liquid of density 0.9 g / cc. Calculate the density of the solid.

Who first described the double-helix structure of DNA?

Suppose you are holding a basketball while standing still on a skateboard you are and the skateboard have a mass of 50 kg you throw the basketball with a force of 10 N what is your acceleration before and after you throw the ball