Voltage (V)= Current (I) * Resistance (R)

**V=IR=10*12=120volt**

*This is a common answer of mine*

Hope this helps!

**Answer:**

A) 30 N upward

**Explanation:**

There are two forces on the block: buoyant force up and weight down. The net force is 5 N up, so:

5 N = B − W

The weight is 25 N so:

5 N = B − 25 N

B = 30 N

The buoyant force is 30 N up.

**Explanation:**

The new volume of water = 25 ml

The old volume of water = 15 ml

The difference = 25 - 15 but what are the units?

Since the question asks for force, the units must start out as 10 mL

In water 1 mL has a mass of 1 gram, so the answer is 10 grams.

Grams are units of mass, not weight. You should convert this into newtons.

10 grams = 1/1000 = 0.01 kg

1 kg has a weight of 9.81 Newtons

0.01 kg has a weight 0.081 Newtons

If you have never seen a Newton before, then the answer is 10 grams

B. sent through the atmosphere

**Answer: Option (a) is the correct answer.**

**Explanation:**

Entropy is defined as the degree of randomness present in a substance. This means that more randomly the atoms in a substance are moving more will be entropy of the substance.

Entropy of a substance increases with increase in temperature.

For example, when a piece of wood is burned then its molecules will gain kinetic energy and hence, they start to move randomly from one place to another.

As a result, there will occur an increase in its entropy.

Thus, we can conclude that **when a piece of wood is burned then its entropy increases.**