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EastWind [94]
3 years ago
5

If the same quantity of heat is added to both a 2-liter and a 4-liter container of water, the temperature change for water in th

e 4-liter container will be A) half that of the 2-liter container. B) more than half but less than twice. C) twice that of the 2-liter container. D) no change. Please explain.
Physics
1 answer:
VikaD [51]3 years ago
3 0

Answer:

brainly.com/question/10966794

Explanation:

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You lift a 10-kg box to a height of 1m. How much work do you do on the box when you lift it from the ground? (g= 9.81 m/s2)
Andreyy89

Answer:

98.1 Joule

Explanation:

Solution,

⇒Mass(m)=10kg

⇒Weight(F)=Mg=10×9.81=98.1N

⇒Distance(d)=1m

Now,

Work done=F×d

                  =98.1×1

                  =98.1J

5 0
2 years ago
2. A 2.5 meter-long wave travels at 1 m/s towards a fixed boundary. After 2 seconds, how does the wave appear?
Elan Coil [88]

Answer:

Since incident wave and its reflected part in opposite phase superimpose on each other

So correct answer will be

Option B

Explanation:

Here we know that the wave reflection is done by rigid boundary

So when wave is reflected by the boundary then its phase is reversed by 180 degree

so the reflected wave is in reverse phase from the boundary

so we can superimpose the reflected part with incident wave to dine the resultant wave

So the phenomenon is given as follow

6 0
3 years ago
Which acceleration-time graph corresponds to the motion of the car if it moves toward the right, while slowing down at a steady
Bumek [7]

We define acceleration as the rate of change of the velocity

Thus, if you have positive velocity and positive acceleration, your <u>speed increases.</u>

If you have positive velocity and negative acceleration, your speed decreases.

Now you get the idea, we will see that the correct option is graph 1.

We know that the car moves towards the right (let's define this as "the car has positive velocity") and we also know that te car is slowing down constantly (thus the acceleration needs to be negative and constant).

By looking at the graphs, the only one with these properties is graph 1.

If you want to learn more, you can read:

brainly.com/question/12550364

5 0
2 years ago
What is law of conservation of energy?​
OleMash [197]

Energy can neither be created nor be destroyed.

7 0
2 years ago
Read 2 more answers
The baseball player is sliding towards the left of the picture to get to second base. In what direction is the force of friction
lubasha [3.4K]
The answer is B. Friction is going to the RIGHT because friction works against where you are trying to go
6 0
3 years ago
Read 2 more answers
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