Apex learning - courses x
physics sem 2
1.4.2 test (cst): computer scored unit test
question 12 of 25
2 points
you place a block of wood on its largest face on a table. when you turn the
block onto its smallest face, what changes?
o
a pressure increases.
o
b. density decreases.
o
c. force increases.
o
d. temperature decreases.
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Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

What is the measurement of how fast an object moves relative to a reference point?

Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?