A pair of scissors is a complex machine. what simple machines make up a pair of scissors?

The friends start by discussing what they know with respect to electric and magnetic fields. Alexa mentions several differences between the two fields. Which of her statements are correct? (Select all that apply.) A.

Sound is a disturbance that travels through a medium as a

Lance has a moment of inertia of 420 kg m2 while riding the Rotor. The floor of the Rotor drops out from under its riders once it reaches the angular velocity (_ omega) of 1.6 radians per second. Calculate his angular momentum.

A trombone has a variable length. When a musician blows into the mouthpiece and causes air in the tube of the horn to vibrate, the waves set up by the vibrations reflect back and forth in the horn to create standing waves.

You are carrying a 7.0-kg bag of groceries as you walk at constant velocity along the sidewalk. You walk a distance of 82 meters and hold the bag at a height of 1.5 m above the sidewalk. How much work against gravity do you do on the bag? Explain.

The measure of the force of gravity on an object, expressed as mass of the object times acceleration due to gravity is called

Which of the following jobs does not require good swimming ability

An object has an emissivity of 0.725. At temperature T, it radicates heat at a rate of 10 W. What is its rate of heat radiation at temperature 2 T

Which of the following is an instance of persuasive speaking? a. a coach reviewing the offensive plays for next week's game b. a lawyer explaining the details of a plea bargaining agreement to her client. c.

What is needed to support life