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2 years ago

What must be true about two objects if heat is flowing between them

Physics

1 answer:

Vedmedyk [2.9K]2 years ago

4 0

Answer:

The objects must be different temperatures.

Explanation:The objects must be different temperatures. eat will flow from Object 1 to Object 2 in examples 1, 2, and 4, and heat will flow from Object 2 to Object 1 in Example 3. Which factors affect heat transfer between a warm and a cool substance?

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After driving a portion of the route, the taptap is fully loaded with a total of 25 people including the driver, with an average

alexira [117]

Answer:

Incomplete Question

Explanation:

String constant is not stated

I'll solve this in a general way.

At the end of my explanation, I'll assume any value for string constant.

The total weight on the taptap : Weight of people + Weight of goats + Weight of chickens + weight of banana

= (25 * 66) + (3 * 15) + (5 * 3) + 25 = 1735 kg

The gravitational force exerted on the taptap

Fig = m*g

where m = the total mass 1735kg

and g = 9.8m/s²

Hooke's law of Elasticity states that

Fs = Kx

Where Fs = spring force

k = spring constant

x = spring stretch or compression

Since Fs = Fg

So, Kx = mg

Make x the subject of the formula

x = mg/k --------------- This is the general way of solving for spring compressor in cases like this

I'll replace m and g with their values, respectively.

Because, the spring constant (k) is omitted in the question, I'll assume it to be 30000

x = 1735 * 9.8/30000

x = 17003/30000

x = 0.566767 metres

x = 0.57 metres ------------- Approximated

In conclusion, the spring compression is 0.57 metres if the spring constant is 30000

6 0

3 years ago

A bicycle moves at a constant speed of 4m/s. How long will it take the bicyclist move 36m? Use this answer by graph

kicyunya [14]

It will take them nine seconds to move 36 meters

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4 years ago

20 PTS BRAINLIEST If Thomson's model of the atom was correct, what would Rutherford have seen in his experiments?

Sati [7]

The correct option is A.
J.J Thompson proposed the plum model of atomic structure. The model states that the atom is a sphere of positively charged matter in which electrons are embedded.
Rutherford designed an experiment to verify the truth of this model. He set up a beam of alpha particles which are to be passed a thin gold foil. If the JJ model of atomic structure is correct, all of the alpha particles suppose to pass through the foil, but some of the alpha particles bounced back while those that passed through the foil emerged at different angles.

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3 years ago

Read 2 more answers

Threepointchargeshaveequalmagnitudesandarelocatedonthesameline. The separation d between A and B is the same as the separation b

Molodets [167]

Answer: B, C, A

Explanation:

Electrostatic force F = kq²/d²

Let the force on A be Fa, and B be Fb and C be Fc.

For Fa, distance between A and B is d, and distance between A and C is 2d

For Fb, distance between B and A is d, and distance between B and C is d

For Fc, distance between C and B is d, and distance between C and A is 2d