Answer:
Yes it is a solid
Explanation:
It just has unusual properties.
Does it float when you drop it? then it is not a gas.
Does it pour into any container as water does? Then it is not a liquid.
So it's a solid.
And it can change it's shape
The answer to this question is B....hope this helps.
The static friction exerted on the block by the incline is
.
The given parameters;
- <em>mass of the block, = M</em>
- <em>coefficient of static friction in section 1, = </em>
<em /> - <em>angle of inclination of the plane, = θ</em>
<em />
The normal force on the block is calculated as follows;
Fₙ = Mgcosθ
The static friction exerted on the block by the incline is calculated as follows;

Thus, the static friction exerted on the block by the incline is 
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Answer:
The correct option is;
C. The temperature of the air affects the speed of sound
Explanation:
The information given are;
The speed with which sound travels in the desert air = 358 m/s
The speed with which sound travels in the polar air = 330 m/s
The major difference between the desert air and the polar air is that the temperature of the desert air is hotter than the temperature of the air in the polar region. Therefore the speed of sound is affected by the air temperature.
The equation that gives the relationship of the speed of sound in air,
, to temperature is presented as follows;

Which shows that the speed of sound in air,
, rises as the temperature of the air rises.
Where;
= The temperature of the air in degrees Celsius
= The temperature of the air in degrees Kelvin.
Answer:

Explanation:
Given


Required
Determine the mass of the ball
This question will be answered using Newton's second law of motion.
Which states that

Substitute values for Force and Acceleration

Make Mass the subject


--- (approximated)