04 Touch-screen phones are made of many different materials.
Figure 3 shows the main materials in a touch-screen phone.
Figure 3
other
15%
iron
20%
plastic
45%
copper
7%
glass
Calculate the percentage by mass of glass in a touch-screen phone. *
1 point

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

A20 cm long spring is attached to a wall. the spring stretches to a length of 22 cm when you pull on it with a force of 100 n. what is the spring constant

Imagine that the rightward current flows in the rod for a short time. as a result, what will the net charge on the right and left ends of the rod become? left end negative and right end positive left end negative and right end negative left end negative and right end nearly neutral left end nearly neutral and right end positive both ends nearly neutral