Use the table below to identify four substances that undergo a physical change if the temperature is reduced from 50oc to - 50oc. what is the physical change that takes place in each case.

What happens when both sides of the tug of war rope or equal in force? What is the net force in this scenario?

Which of the following is the most likely global climate change? a. a decrease in the overall temperature of the Earth b. an increase in the overall temperature of the Earth c. an increase in the number of cold climates d.

What is produced when muscles contract?

A bus leaves at 9 am with a group of tourists. They travel 350 km before they stop for lunch. Then they travel an additional 250 km until the end of their trip at 3 pm. What was the average speed of the bus?

What do you mean by peltier coefficient?

A small car collides with a large truck. Is the magnitude of the force experienced by the car greater than, less than, or equal to the magnitude of the force experienced by the truck? a. less than b. equal to c. greater than

As an airplane is taking off at an airport its position is closely monitored by radar. The following three positions are measured with their corresponding times: x1 = 241.22 m at t1 = 3.70 s, x2 = 297.60 m at t2 = 4.20 s, x3 = 360.23 m at t3 = 4.

A stunt car with a mass of 1000 kg crashes into a tree on a movie set during the collision acceleration of the car with 3 m what was the force of impact of the collision on the car

A circuit with a current of 400 amp has several lights that have a total resistance equal to 30 ohms. Find the voltage.

How many neutrons does element x have if it's atomic number is 35 and it's mass number 71