Why do X-Ray technicians stand behind a shield when giving X-Rays to patients?

What do you know about potential energy? And how do we use it?

If the voltage and resistance in a circuit both double, what happens to the current? use ohm's law to explain your answer.

A ball rolls off a 1.5 m tall horizontal table and lands on the floor. 70 m away. What is the ball's velocity while it was on the table top?

When tuning a guitar, a musician plays two strings at once. These sound waves overlap and often appear to get louder and softer if the strings are not in tune.

Is the following answer true or false? The manipulated variable is plotted on the horizontal axis

Why the room gets hot even we open the door of refrigerator?

What effect will taking a dose of antibiotics that is too small have on the bacteria you are trying to destroy? a. all of the bacteria will pass on their genes b. none of the bacteria will pass on their genes c.

Multiply 0.00032 cm by 4.02 cm and express the answer in scientific notation

Apply why does a box on the seat of a car slide around on the seat when the car speeds up slows down or turns a corner?

Solve the following automotive-services problem. Remember I = E/R, where (I = amps) against resistance (R = ohms) in the electric field (E = volts.). Resistance = 0.2 ohm Current = 30 amps Voltage = 6 (T/F)