An element's atomic number is 55. How many protons would an atom of this element have?

What will happen two temperatures if you increase particle motion

Which of the following best describes "the ability to do work"? a. force b. mass c. energy d. volume

A driver traveling at 29 m / s sees a tree laying in the middle of the road. She brakes to full stop in 4.3 s. Calculate the driver's acceleration while stopping (deceleration). (hint: you know the final velocity)

A juggler throws a bowling pin straight up with an initial speed of 7.70m/s. How much time elapses until the bowling pin returns to the juggler's hand?

A direct result of the Newlands reclamation Act was the

A small rock with mass 0.12 kg is fastened to a massless string with length 0.80 m to form a pendulum. The pendulum is swinging so as to make a maximum angle of 45 ∘ with the vertical. Air resistance is negligible. A.

What does the model below represent? 200 + 02 → 2002

Efficiency of a standard 60 W lightbulb

1913.0-14.6 * 10^2= Give the answer in scientific notation

What happens to a wave when reflected off a node