How many pennies does it cost to use your 956-w microwave for 36 minutes every day for a week if your electric company charges 9 cents per kwh?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Aperson walks first at a constant speed of 4.89 m/s along a straight line from point a to point b and then back along the line from b to a at a constant speed of 2.95 m/s. what is the average speed over the entire trip?

What can you increase the strength of an electromagnet by