If the cube in this figure were replaced with a cube of less density than water it would _________, and if replaced with a cube of greater density, it would _________
a. rise/sink
b. sink/rise
c. remain at the same level/remain at the same level
d. rise/rise
e. sink/sink
a
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A bubble having a diameter of 1.00 cm is released from the bottom of a swimming pool where the depth is 5.00 m. What will the diameter of the bubble be when it reaches the surface? The temperature of the water at the surface is 20.0°C, whereas it is 15.0°C at the bottom. (The density of water is 1.00 × 10^3 kg/m3.)
a. 1.05 cm b. 1.15 cm c. 1.45 cm d. 1.65 cm e. 1.35 cm
Two capacitors with CA greater than CB, are connected in parallel with a battery. Which of the following is true?
a. There is the same charge stored on each capacitor. b. There is the same potential difference across both capacitors. c. There is more potential difference across CB. d. There is more potential difference across CA.
The main criterion for deciding between Universe geometries is ____
a. density b. mass c. temperature d. age e. inflation
We usually think of friction "opposing motion". Explain how friction assists the motion of a car
What will be an ideal response?