Answer:
Substance X has the highest temperature because its particles have more kinetic energy.
Explanation:
The temperature of a substance is directly proportional to the average kinetic energy of its particles, according to the equation:
where
is the average kinetic energy of the particles
k is the Boltzmann's constant
T is the absolute temperature of the substance
In this problem, we see that the particles in the two substances have same mass, but particles of substance X travel faster than particles of substance Y, and since the average kinetic energy depends on the square of the speed of hte particles:
we can conclude that particles in substance X have more kinetic energy than particles in substance Y, therefore substance X has higher temperature than substance Y.
I wanna say A.
Not a 100% sure but this is what i think
hope it helps!
I believe it is b. hope this helps!!
A machine that provides both constant speed and maximum resistance throughout the full range of motion provides an isokinetic type of muscular contraction. This type of contraction occurs when the muscle would contract and shorten at a consistent and constant speed. To have this contraction, special equipment are to be used. An example of an equipment would be an <span>Isokinetic Dynamometer. </span>However, this type of training is said to be one of the fastest in increasing the muscle strength and the muscle endurance. With this training, the muscles being targeted would gain strength consistently and evenly throughout the whole duration of exercise.
After the second car starts out,
D = 30 + 110 H
360 = 30 + 110 H
330 = 110 H
H = 330/110
H = 3 hours after the second car leaves.
That's 3.5 hours after the first car leaves.