Answer:
2
Explanation:
The object's density is calculated by dividing its mass (10 grams) by its volume (5 cubic centimeters), yielding a density of 2 g/cm³.
The density of an object is calculated by dividing its mass by its volume. For the object in question, its mass is 10 grams and its volume is 5 cubic centimeters. Therefore, you would calculate density as follows: Density = Mass / Volume. Plug in the values and you get: Density = 10 grams / 5 cubic centimeters. This equals 2 g/cm³. Hence, the density of the object is 2 grams per cubic centimeter.
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Answer:
3. Usinθ
Explanation:
The vertical component of velocity of any object reaching maximum height is 0 and the horizontal component of velocity of any object in flight remains constant.
Therefore the horizontal component of velocity is Ucosθ for both objects at any given time.
At maximum height A is having 0 vertical velocity but B which just starting its flight is having Usinθ as its vetical component of velocity.
Velocity of B relative to A = Velocity of B - Velocity of A
As velocity can be resolved to components,( to simplify the sum )
Horizontal component of velocity of B relative to A = Horizontal component of velocity of B - Horizontal component of velocity of A
which is 3. Usinθ
nuclear energy
B.
electrical energy
C.
chemical energy
D.
sound energy
The correct answer to the question is : C). Chemical energy.
EXPLANATION:
A gas stove provides energy when the gas present inside it, is burnt.
The gas contained inside it are natural gases which contain chemical energy. When gases come under fire or electric spark, the chemical energy is converted into light and heat energy.
No nuclear, electric or sound energy are consumed in providing power .
Hence, the correct statement is chemical energy.