When you lift a book from the ground to your desk, what kind of work do you do, negative or positive? by lifting the book what do you change? Does it gain or lose energy? What kind of Energy?

Frequency = 1/T Based on the equation, determine what happens to the period, T, as the frequency increases

According to the law of conservation of energy, a. an object loses most of its energy as friction. b. the total amount of energy for a system stays the same. c. the potential energy of an object is always greater than its kinetic energy. d.

Calculate the force on an object that has a mass of 12 kg and an acceleration of 4 m/s2

A bullet travels at 850 m/s. How long will it take a bullet to go 1 km?

Penny measured the time that it took her rat to run through a maze. She conducted the experiment 10 times and recorded the set of data below.

There are four springs stretched by the same mass. Spring A: 25 cm Spring B: 10 cm Spring C: 100 cm Spring D: 1 cm Which spring is the strongest? A B C D

Consider a rough asphalt roadway with 17 cm curbs and one 3.75 m lane in each direction and a 1.45 m shoulder on each side. The road has a longitudinal slope of 0.75% and is crowned in the center with a transverse slope of 2.25%.

An example of an opinion would be which of the following? bob s burgers is the best show on television. cake is appropriate for many occasions. earth is 238,900 miles from the moon. none of these

Which is a concern about mining for uranium? -Heated water could be released into the environment. -Dust released in the air could be radioactive. -Supplies could become low during a drought.

In 1986, a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long, 40.0 km wide, and 250 m thick. What is the mass of this iceberg, given that the density of ice is 917 kg/m3?