Answer: 8400 J
Explanation:
The formula referenced in the question is:
Where:
is the thermal energy
is the mass of the water sample
is the specific heat capacity of water
is the variation in temperature
Solving:
This is the thermal energy released
Oil is made from buried remains of plants and animals.
It depends on what is the reference frame where the velocity of the leaf (6 m/s) is measured.
If it is measured with respect to the creek, then the answer is simply "6 m/s south".
If it is measured with respect to the observer moving toward the leaf, then the velocity of the leaf relative to the ground is actually the sum between the velocity of the leaf relative to the observer (6 m/s south, so 6 m/s) and the velocity of the observer relative to the ground (2 m/s north, so -2 m/s):
and the direction is south.
The velocity of the object will change, thus changing its position.
Correct answer choice is :
B) They are also called longitudinal waves.
Explanation:
S-waves, secondary waves, or shear waves are a kind of flexible wave also are one of the two principal kinds of elastic body waves, so called because they travel through the body of an object, unlike surface waves. It pushes and pulls the rock it travels through just like sound waves push and pull the air. The second kind of body wave is the S wave or secondary wave, which is the next wave you feel in an earthquake. An S wave is delayed than a P wave and can only move through solid rock, not through any fluid medium.
