Which sentence provides evidence that heat travels from Earth’s mantle up to its crust?
A.
Earth’s atmosphere is warmer during the day than at night.
B.
Earth’s outer surface is cooler than its interior layers.
C.
Rocks and other objects on Earth’s surface heat up quickly in the afternoon sun.
D.
The core of Earth is solid, but the layer just beneath Earth's crust is molten.

Abearing is designed to a reduce friction b. support a load c. guide moving parts such as wheels, shafts and pivots d. all of the above

Why does gravity have a lesser than grater effect on higher altitudes?

Acommon technique in analysis of scientific data is normalization. the purpose of normalizing data is to eliminate irrelevant constants that can obscure the salient features of the data. the goal of this experiment is to test the hypothesis that the flux of light decreases as the square of the distance from the source. in this case, the absolute value of the voltage measured by the photometer is irrelevant; only the relative value conveys useful information. suppose that in part 2.2.2 of the experiment, students obtain a signal value of 162 mv at a distance of 4 cm and a value of 86 mv at a distance of 5.7 cm. normalize the students' data to the value obtained at 4 cm. (divide the signal value by 162.) then calculate the theoretically expected (normalized) value at 5.7 cm.