Answer:
600 m is required for smaller plane to reach its takeoff speed.
Explanation:
We have equation of motion
80 = 0 + a x 30
a = 2.67 m/s²
Now finding distance traveled by second flight
v² = u²+2as
40² = 0²+2 x 2.67 x s
s = 300 m
So 300 m is required for smaller plane to reach its takeoff speed.
Answer:
d
Explanation:
uv is safe for humans but bad for bacteria etc... at least I think. I'm sorry if I'm wrong
Answer:
c
Explanation:
energy doesnt affect to mass of a object
Answer:
A stormy ocean, having the most kinetic energy means it moves more and faster
Answer:
Volume = 24 cm^3
Explanation:
We recall that the volume of the box is calculated via the formula:
Volume = length * height * width
and that in a product, the number of significant figures for the result should coincide with the number of significant figures of the factor that has the least of them.
In this case, all measures have the same number of significant figures: two. so we calculate the product, and then limit the answer value to exactly two significant figures:
Volume = 4.1 cm * 2.8 cm * 2.1 cm = 24.108 cm^3, which must be rounded to two significant figures as: 24 cm^3
