The mass has changed because a gas has formed and left the mixture.
Answer: Option A
<u>Explanation:
</u>
According to law of conservation of masses which is followed by every chemical reaction, the sum of masses of the reactants equal to the sum of the masses of the products. But in this case of baking soda of 10 g reacting with 100 g of vinegar is giving a resulting mixture of 105 g.
So, this mismatch in the resultant mass of the product with the sum of masses of the reactants is due to the formation of bubbles in the chemical reaction between baking soda and vinegar. This gas bubbles formed on reaction of vinegar with baking soda will leave the mixture.
As we known from conservation of mass, the resultant mixture should be equal to the sum of mass of vinegar and baking soda reacted which would have been equal to 110 g ( baking soda 10 g +100 g of vinegar). But we have obtained only 105 g of resultant mixture so the remaining 5 g has been converted into gas and left the mixture.
Answer: Tsunami.
Explanation :
Tsunami is the result of a sudden vertical offset in the ocean floor and is most often the result of plate movement on the ocean floor.
Tsunami is caused due to the displacement of a large volume of water like in an ocean. It consists of a series of waves. It destroys coastlines and coastal settlements. It is also known as a tidal wave.
So, the correct option is (b) Tsunami.
<h2>
Answer: F=32.2m</h2>
Explanation:
According Newton's 2nd Law of Motion the force is directly proportional to the mass and to the acceleration of a body:
(1)
When we talk about the force of gravity on an object (the weight) the constant acceleration is due gravity, this means:
(2)
Substituting (2) in (1):
(3)
This means the equation that best represents the force on an object due to gravity according to its mass, among the given options is:
The frequency<span> of oscillation of the dot is the </span>frequency<span> #f# of the </span>wave<span>. The second </span>wave<span> has twice the </span>frequency<span> of the first. </span>You<span> can see that the </span>wavelength<span>is halved when the </span>frequency<span> is doubled. Since #v# is constant, </span>if<span> #f# increases, #λ# must decrease, and vice versa</span>
Answer:
Explanation:
I assume you are asking for the acceleration of the ball, not the velocity (in fact, the velocity is already given).
The acceleration is:
where in this case we have:
v = 24 m/s is the final velocity
u = 0 is the initial velocity
t = 8 s is the time interval for the velocity to change
Solving the equation,