Jenny is sitting on a sled on the side of a hill inclined at 15°. What force is required to keep the sled from sliding down the

hill if the combined weight of Jenny and the sled is 90 pounds?

Think critically why would a field guide have common names as well as scientific names?!

What name is given to a fuel made from living organisms or their waste?

Which body structures comprise the central nevous system

An airplane flies a distance of 650 km at an average speed of 300km/h. how much time did the flight last

Monochromatic light is incident on a grating that is 75 mm wide and ruled with 50,000 lines. The second-order maximum is seen at 32.5°. What is the wavelength of the incident light? 202 nm 605 nm 806 nm 403 nm 452 nm

When a solo eclipse occurs. It is seen in

Newtons third law describes the forces between two colliding objects. use this connection to explain the forces acting when you kick a soccer ball

In the heat equation, what does c represent

5. A balloon is ascending at the rate of 4.9m/s. A pocket is dropped from the balloon when situated at a height of 245m. How long does it take the packet to reach the ground? What is its final velocity?

What is the one thing you can do to control the momentum your car carries in a potential crash?