A slinky is stretched across a classroom to 9 meters. A compression travels along the slinky at a velocity of 2 m s. How long does it take the compression to travel the entire 9m length of the classroom?

What is electrical circuit

When resistance force is increased on a lever which of the following happens to the effort force?

The temperature in Chattanooga Tennessee is - 3 Celsius The temperature in Sam's hometown is 18° colder than that what is the temperature in Sam's hometown?

For a vacation, you and your family fly east to west from Boston, Massachusetts, to Seattle, Washington. You notice that your flight back home to Boston is shorter than your flight to Seattle. Which phenomenon causes your flight home to be shorter?

A magnetic field is used to suspend a wire of mass 0.04 kg and length 0.13 m. The wire is carrying a current of 15 A. What minimum magnetic-field magnitude is needed to balance the pull of gravity

What type of energy comes from the food that we eat?

Which of the following are vector quantities? check all that apply. a. time b. displacement c. force d. mass

Imagine you are on a bus with a helium balloon tied on a string tied to the seat in front of you. the bus stops short to avoid running over a rabbit and you are thrown forward. what happens to the balloon in relation to the bus? 1. the balloon pops.

Give one reason why the density of iron is higher than the density of oxygen

In which region of the periodic table do the elements NOT normally react chemically with other elements? A. metals B. metalloids C. nonmetals D. noble gases