A 1,120 kg car is travelling with a speed of 40 m/s. Find its energy.

Explain 2 reasons it is wise to use energy-efficient electric appliances.

While standing on ice, you first throw a tennis ball and then a bowling ball. Which one would cause you to have the greatest negative velocity? Explain using conservation of momentum.

Give examples of not useful high friction

What is keplers. explain every law of planetary motion.

Shawn wants to perform an experiment. However, he needs to determine a question to answer with his experiment. Which of the following is a scientific question that could be used to form a good hypothesis? A.

A rapidly moving cold air mass meets a slowly moving warm air mass and forms a front. what will most likely occur at this front?

It is believed that during the late Cretaceous period sea levels rose drastically resulting in about a third of the Earth's present land masses being underwater. Which of the following types of evidence supports this theory? A.

On a drive from one city to? another, victor averaged 39 mph. if he had been able to average 72? mph, he would have reached his destination 11 hrs earlier. what is the driving distance between one city and the? other?

A motorcycle has a constant speed of 24.3 m/s as it passes over the top of a hill whose radius of curvature is 182 m. The mass of the motorcycle and driver is 391 kg.

Discuss the relationship between acceleration. Are these scalar or vector quantities?