Which of the following displays a noncontact force? a. Opening a door b. Hitting a golf ball onto a fairway c. Typing on a keyboard d. Two magnets pulling toward one another

Traditional explosives use the energy released by chemical reactions. Nuclear weapons use the energy released by nuclear reactions. Why are nuclear weapons much more destructive than traditional explosives? Question 16 options: A.

Copper has a specific heat of 0.386 J/g°C. How much heat is required to increase 5.00 g of copper from 0.0°C to 10.0°C? A. 3.86 J B. 5.00 J C. 10.0 J D. 19.3 J

Two stellar science students are pushing a box, one on each side of the box. Kenny is pushing the box with a force of 10N to the left. Michael is pushing the box with the force of 15N to the right. Draw a force diagram.

What caused the solar system to form a disk?

Ways to accelerate an object

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?