Answer: Force is mass times acceleration, or F= m x a. This means an object with a larger mass needs a stronger force to be moved along at the same acceleration as an object with a small mass. This is Newton's Second Law of Motion
Explanation:
\Delta L= \alpha L_0 (T_f-T_i)
= (18 x 10^-6 /°C)(0.125 m)(100° C - 200 °C)
= -0.00225 m
New length = L + ΔL
= 1.25 m + (-0.00225 m)
= 1.248
So your answer is B.
Answer:
9.52 am
Explanation:
The p-waves travel with uniform motion (constant velocity), so we can calculate the time they take to travel from the epicenter to the point where they are recorded using
where
d is the distance covered
v is the speed of the p-waves
On average, the speed of p-waves is
v = 7 km/s
Here they have to cover a distance of
d = 5600 km
So, the time they take is:
Converting into minutes,
Since they were recorded at 10.05 am, it means the earthquake occurred 13 minutes before that: so, at 9.52 am.
It seems that you have missed the given options for this question, but anyway, here is the correct answer. If humans cannot see ultraviolet waves, ultraviolet light can be used to gather evidence of a crime since u<span>ltraviolet light causes substances to fluoresce and give off visible light. Hope this is the answer that you are looking for. Thanks for posting!</span>
Answer:
kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.
Explanation: