Keisha is making a diagram of a simple machine in the body. (shows a bicep flexing, and x= the hand, z= the bicep, y= the elbow)

Which labels complete the diagram?

X: load

Y: fulcrum

Z: lever

X: fulcrum

Y: wedge

Z: load

X: wedge

Y: fulcrum

Z: load

X: lever

Y: load

Z: fulcrum

How would doubling the made of an object change the objects potential energy

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.