Answer:
C) 4 seconds
Explanation:
The height of an object is given by the following formula:
To find the flight time you equal the height s to zero:
Then, you have a quadratic equation of the form:
you use the quadratic formula in order to find the roots of the polynomial:
you take the positive value of t because this has physical meaning.
Hence:
the time is C) 4 seconds
Answer:
In mathematics, the difference of two squares is a squared (multiplied by itself) number subtracted from another squared number. Every difference of squares may be factored according to the identity. in elementary algebra.
Explanation:
Answer:
1788.402 MJ
Explanation:
Work done = Force (N) x distance (m)
First we have to convert distance into metres:
173.8 x 1000 = 173,800 m
Then plug these values into the equation above:
173,800 x 10290 = 1788402000 J
The reason it's Joules (the unit for energy) is because work done = energy transferred
Now we have to convert Joules into Mega Joules:
1 J = 1/1000000 MJ
1788402000 J = 1788402000/ 1000000 = 1788.402 MJ
The choice
which is the best name for these experiments would be Boyles' Law,
because it describes what will happen in the relationship between the pressure
and volume of the gas and Boyle’s Law is <span>is an experimental </span>gas law<span> <span>that describes how the </span></span>pressure<span> <span>of a </span></span>gas<span> <span>tends to increase as the </span></span>volume<span> of a gas decreases.</span> The correct answer between all the
choices given is the second choice or letter B. I am hoping that this answer
has satisfied your query about and it will be able to help you, and if you’d
like, feel free to ask another question.