If you swing a bucket of water fast enough in a vertical circle, at the highest point the water does not spill out because an outward force balances the pull of gravity on the water
A) True
B) False
B
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A parallel plate capacitor of capacitance C0 has plates of area A with separation d between them. When it is connected to a battery of voltage V0, it has charge of magnitude Q0 on its plates. The plates are pulled apart to a separation 2d while the capacitor remains connected to the battery. After the plates are 2d apart, the capacitance of the capacitor and the magnitude of the charge on the plates are what?
A.
C0, 
Q0B.
C0, Q0C.
D.
E.
Three boxes are pushed across a frictionless horizontal surface as shown. When we compare the normal force 
that mass 2m exerts on mass 5m with the normal force 
that mass 5m exerts on mass 10m, we find that
?
?
A.
= = F.B.
= F> .C.
= .D.
> .E.
> .?
Which of the following polyatomic ions has a single minus charge?
a. Acetate b. Sulfate c. Phosphate d. Ammonium
The ____________________ of a radioactive substance is the amount of time for the substance to be reduced by half
Fill in the blank(s) with correct word