What type of electricity do we use in our homes?

A) direct current

B) alternative current

C) alternating current

D) ac/dc

Calculate the distance in kilometers that Charlie runs if he maintains an average speed of 8 km

A hanging chair is suspended on a spring from the ceiling. The 5880 N/m spring stretches from 15 cm long to 25 cm long when you sit in the chair. How hard is the spring pulling to lift you?

How long does it take for changed in an ecosystem to be reversed

Why fuse wires always thin

Name the process scientists use to gain knowledge about the physical world

One watt is equal to which of these values? 1 joule/hour 1 joule-hour 1 joule/second 1 joule-second

What are some of the benefits of learned optimism that have been found in research? O A. Fewer health problems O O B. All of these C. Making more money O D. A lower divorce rate

Katie runs 6 km in 0.6 hour, then 5 km in 0.5 hour. Katie's average speed is __ per hour.

A derived unit is a combination of fundamental units. Which of the following is an example of a derived unit? a) centimeter (used to measure distance) b) gram (used to measure mass) c) cubic centimeter (used to measure volume)

Technician A says that a heater core leak can be the result of the coolant wearing a hole through the core. Technician B says that a core leak can be caused by chemical action eating a hole through the core. Who is correct?