A merry-go-round rotates with a centripetal acceleration of 15 m/s2. If the

outer horses are 7 m from the center of the ride, what is their velocity?

O

A. 11.8 m/s

O

B. 10.2 m/s

O

O

C. 9.6 m/s

D. 8.4 m/s

When 2.0x10^-16 kg of matter is converted into energy how much energy is released

Which of the following statements is true? Question 8 options: You are exposed to nuclear radiation every day. All natural radiation is at a level low enough to be safe. Naturally occurring nuclear radiation is called background decay.

Suppose future astronauts are living on a Martian base when a major solar flare occurs. How long will it be before the charged particles ejected from the Sun during the flare reach them?

Fertilization occurs in the fallopian tubes.

A kite suspended in the sky is flowing back and forth. Which type of friction is being described?

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?