A car is traveling south at a speed of 69 miles per hour and then begins traveling west but continues traveling at the same speed. Which of the following has changed?

A. velocity

B. gravity

C. mass

D. speed

Which device is similar to a sandwich that has layers of semiconductors? O A. A capacitor O B. A battery O c. A transistor O D. A resistor

Suppose that 2 j of work are needed to stretch a spring from its natural length of 30 cm to a length of 42 cm. how much work (in j) is needed to stretch it from 35 cm to 40 cm?

What is the advantage of making a battery using cells connected in series?

What is the definition magnetism

The potential at location A is 367 V. A positively charged particle is released there from rest and arrives at location B with a speed vB.

Think of the last five things you read. Now think of a type of reading you havent done recenty have never read. What kind of pattern do you see in your reading? What is your favorite type of reading and your least favorite type of reading?

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.

Read the given list of organisms. squirrel, zebra, tortoise, rabbit, horse What best describes the role of these five organisms in a food web?