Which of the following simple machines is not properly identified? A. Scissors: lever B. Pizza cutter: wedge C. Screw: wheel and axle D. Ramp: inclined plane

How does bacteria effect cells

How can a megaphone used by a cheerleader allow people on the opposite side of a field to hear her better? A) The metal or plastic of the megaphone cannot absorb the sound waves.

When will the solar system die

We use electrical devices leopard deuce motion, light, and sound. Which aspect of energy explains why these devices are possible?

The centripetal force of an object moving in a circle varies jointly with the mass of the object and the square of its velocity and inversely as the radius of the circle.

Awave is traveling through X. What can be known about X? It is empty space. It is any medium. It is a solid It is a liquid.

Who wrote the mayflower compact?

In the formula for specific heat, which quantity is measured in units of J/g•°C? a - c b - Q c - T d - m

The acceleration of an object is proportional to which of the following? the mass the energy of the object the inverse of the mass the inverse of the force applied

Suppose you squeeze a sponge into a small ball. does the mass of the sponge change? Does it's density change?