Newtons law of gravitation is called a universal law, why?​

Answer:

Explanation:

Given:

mass of ice melted,

time taken by the ice to melt,

latent heat of the ice,

Now the heat rejected by the Carnot engine:

Since we have boiling water as hot reservoir so:

The cold reservoir is ice, so:

Now the efficiency:

Now form the law of energy conservation:

Heat supplied:

where:

heat supplied to the engine

Now the work done:

Answer:

The focal length of a lens is the distance between the lens and the image sensor when the subject is in focus, usually stated in millimeters.

this is refering to a camera lens, not glasses and what not, glasses do not have a focus length, only equipment that has the ability to focus

Explanation:

May I have brainliest please? :)

Answer:

ответ 1.25 × 10‐³ и вот ваш ответ

Answer:

1 m

Explanation:

• Assuming both waves have the same frequency, and speed, this means that they have the same wavelength.
• If they are exacty out of phase, one will be at its maximum positive amplitude (crest), while the other will be at its maximum negative amplitude (trough), which means that the magnitude of the new amplitude will be the difference between both amplitudes, i.e., 1 m.
• If both waves had the same amplitude, the new amplitude would be just zero.

An Exothermic Reaction , gives off more heat, and a little energy to its surroundings.
this can helps us figure out that the answer is , C, More heat is given off into its products.

most people would choose D, but i beg to differ.