Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be attached end to end, as in

Answer:

D, C, B, A

Explanation:

The derivative from a velocity-time graph provides the acceleration value.

Segment A

Segment B

Segment C

Segment D

Sorted from the lowest to the highest acceleration:

D, C, B, A

the answer is 2w

The Pythagorean Theorem can be utilized here: Imagine a car navigating through traffic—when it turns left to travel north, a right angle of 90 degrees is formed. However, the displacement is always the shortest distance connecting the origin and the endpoint, which forms a triangle in this scenario. In a right triangle, the Pythagorean theorem applies: 215^2+45^2=c^2; therefore, v=√(215^2+45^2).

A reactant is any substance that takes part in a chemical reaction. Conversely, a product is what emerges from the chemical transformation. A familiar example of a chemical change is rust formation. In this reaction, oxygen and iron, which serve as the reactants, react to produce a substance known as iron oxide, or rust.

Response:

To find power, we must first determine the work done by the force.

1) We will use the following equation to calculate work:

The force is provided by the problem; our goal is to express 'dx' in terms of 't'

2) It's known that:

Thus, we have:

Then:

3) Finally, substituting all known values gives us:

After some calculations, the resulting work is:

161.9638 J.

4) To find power, we will use the following equation:

Thus

P = 161.9638/4.7 = 34.46 W