Which is larger than a single atom?

a. magnetic domain

b. electron

c. neutron cloud

d. proton

6. An object possesses 40 J of total energy. A force does - 10 J of work upon the object How much energy will the object now possess?

In a fluorescent tube of diameter 3 cm, 3 times 1018 electrons and 0.75 times 1018 positive ions (with a charge of + e) flow through a cross-sectional area each second. What is the current in the tube?

What are two layers that can stop alpha radiation?

the gas in a balloon has T=280 K and V=0.0279 m^3. if the temperature increases to 320 K at constant pressure, what is the new volume of the balloon? (unit=m^3)

What function do the wind-driven currents play in the transport of heat energy in the oceans?

an air craft is travelling due north with velocity of 100m/s astrong wind blow from the west with in velocity of 25m/s the reshstant velocity

Q) Suppose, you are in a sporting event. You notice that everyone stands up when it's his turn, creating a wave that moves through the crowd and they sit back down again after a while.

A dog runs with an initial speed of 1.5 m/s on a floor. It slides to a stop with an acceleration of - 0.35 m/s^2. How long does it take for the dog to stop?

Why do electromagnetic waves not require a medium for travel?

Would it be better to collide head-on with an identical car traveling at the same speed or collide with a stationary brick wall?