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4 years ago

Ice is placed in hot water. What happens to the temperature of the ice and the water?

Physics

2 answers:

yawa3891 [41]4 years ago

7 0

B is your answer :)♥

Marrrta [24]4 years ago

3 0

B is the answer bc ice melts

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9/23/20

Neporo4naja [7]

234-12=23 is the answer of this question

4 0

4 years ago

A force is applied to the rim of a disk that can rotate like a merry-go-round, so as to change its angular velocity. Its initial

frutty [35]

Answer:

The work done by the torque is the same in each case.

Explanation:

Work-Energy Theorem can be used to calculate the work done by the torque in each case.

$W = \Delta K\\W = K_2 - K_1 = \frac{1}{2}I\omega_2^2 - \frac{1}{2}I\omega_1^2\\$

Let's apply this theorem to each case:

$W_a = \frac{1}{2}I(5)^2 - \frac{1}{2}I(-2)^2 = \frac{1}{2}I(21)\\W_b = \frac{1}{2}I(5)^2 - \frac{1}{2}I(2)^2 = \frac{1}{2}I(21)\\W_c = \frac{1}{2}I(-5)^2 - \frac{1}{2}I(-2)^2 = \frac{1}{2}I(21)\\W_d = \frac{1}{2}I(-5)^2 - \frac{1}{2}I(2)^2 = \frac{1}{2}I(21)$

As can be seen from the results, in each case the work done by the torque is the same.

8 0

3 years ago

UUUURGENT I NEED HELP I WILL GIVE BRAINLEST

Sphinxa [80]

the best way that I can explain this is the force of gravity the mass of the skater and the board increase the kinetic energy cuz of the force of gravity
hope this helps and if it dosen't then sorry

3 0

3 years ago

0.300 kg baseball just before and just after it collides with a bat. Just before, the ball has velocity of magnitude 12.0 m/s an

Shalnov [3]

Ll just before and after it collides with a bat. Just before, the ball has a velocity v1 of magnitude 12.0 m/s and angle θ1 = 35°. Just after, it is traveling directly upward with velocity v2 of magnitude 10.0 m/s. The duration of the collision is 1.5 ms. (a) What is the magnitude of the impu

Reference https://www.physicsforums.com/threads/help-calculating-impulse.383459/

7 0

3 years ago

When demonstrating the interference of light waves, the dark fringes that appear represent where the waves interfere ___________

skad [1K]

The dark fringes that appear represent where the waves interfere

C. Destructively

Explanation:

Interference is a phenomenon typical of waves, that occurs when two waves meet at a certain point in space. The amplitude of the resultant wave can be found by using the principle of superposition, which states that the displacement of the resultant wave is the sum of the displacements of each wave. In particular, there are two extreme cases that can occur:

- Constructive interference: this occurs when the two waves meet in phase - i.e., the crest of one wave meets with the crest of the other wave. In this case, the amplitude of the resultant wave is twice the amplitude of each wave.

- Destructive interference: this occurs when two waves meet in anti-phase - i.e, the crest of one wave meets with the trough of the other wave. In this case, the amplitude of the resultant wave is equal to the difference between the two amplitues (and if the two waves have same amplitude, the resultant amplitude will be zero).

This phenomenon can occur also with light wave (which is a type of wave), and it leads to:

- The presence of bright fringes in case of constructive interference

- The presence of dark fringes in case of destructive interference

Therefore, the correct answer is

C. Destructively

Learn more about waves:

brainly.com/question/5354733

brainly.com/question/9077368

#LearnwithBrainly

3 0

3 years ago