What could cause a physical change in a bar of steel

A force F acts in the forward direction on a cart of mass m. A friction force ff opposes this motion. Part A Use Newton's second law and express the acceleration of the cart. Express your answer in terms of the variables F, f, and m.

The contamination that results from the spread of bacteria from meat to vegetables is called

Twist-on connectors without the spring-steel coils (plastic threads only) are suitable for making branch-circuit connections. A. TrueB. False

Which term refers to energy derived from heat inside the earth

Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased?

There are 152 steps between the ground floor and the sixth floor in a building. Each step is 16.2 cm tall. It takes 3 minutes and 35 seconds for a person with a mass of 59.5 kg to walk all the way up. How much work did the person do?

A rock is dropped from the surface into a pit. It hits the bottom of the pit in 5.0 seconds. A second rock is then dropped into a second pit, where it hits the bottom in 10 seconds.

A group of humans traveling in space discover a habitable planet. They settle down there and start populating it. Their population grows at a steady rate and doubles every 10 years.

A bird can fly 25 km/h how long does it take to fly 3.5km

A clam of mass 0.12 kg dropped by a seagull takes 3.0 s to hit the ground. [Neglect friction.] What is the velocity of the clam when it strikes the ground? [Show all work, including the equation and substitution with units.]