If you drag a sled on the ground, what does the sled experience?

A freight car moves along a frictionless level railroad track at constant speed. The freight car is open on top. A large load of coal is suddenly dumped into the car. What happens to the speed of the freight car

A common flashlight bulb is rated at 0.32 A and 4.3 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 1.

How would you describe the sequence of reactions in a hydrogen bomb? A) A fission reaction is used to trigger a fusion reaction. B) A fusion reaction is used to trigger a fission reaction.

Using information about natural laws, explain why some car crashes produce minor injuries and others produce catastrophic injuries. Will give brainliest + 5 stars!

What four elements composed everything in nature according to the beliefs of the ancient greeks? air, earth, fire, and water air, ashes, fire, and water air, earth, salt, and water smoke, earth, fire, and water none of the above?

A new cannon was being developed in a science lab. The instructor wanted to do some testing of the cannon's ability to launch objects with different masses. The instructor used tennis balls and filled them with lead, rocks, and styrofoam.

Two machines, A and B, each working at a constant rate, can complete a certain task working together in 6 days. In how many days, working alone, can machine A complete the task?

Austin and his friends are pushing a heavy box up a ramp. How can they increase the rate at which the box is moving?

A lightbulb has a voltage of 120 V and uses a current of. 75 amps. What is the electric power used by the lightbulb? Show work

Wind blows at the speed of 30m/s across a 175m^2 flat roof if a house. what is the pressure difference between inside the house and the outside of the house just above the roof?