Answer:
54mph
Explanation:
Speed is defined as the change in distance of a body with respect to time.
Let x be the speed of Eric on his way to the football game, if he used 11hours to the football game, his distance will be the product of his speed and time taken i.e
Distance = speed × time
Distance= x × 11
Distance = 11x... (1)
During his return journey, his speed increases by 12mph with a return drive in only 9hours i.e speed = x+12 and time is 9hours
Since distance = speed × time (return Journey)
Distance = (x+12)×9
Distance = 9x+84...(2)
Note that the distance to and fro the journey is the same as such we will equate equations 1 and 2 to get his initial speed "x" to have;
11x = 9x+84
11x-9x = 84
2x = 84
x = 42mph
This means that his initial speed on his way to the football game is 42mph. Since his speed increases by 12mph during his return drive, his return speed will be 42mph + 12mph which gives 54mph.
When light goes into a denser medium (and any medium is denser than vacuum) it slows down. For instance the speed in air is: 11.000293=99.97% of this speed, which seems like almost the same ...Answer:
Explanation:When light goes into a denser medium (and any medium is denser than vacuum) it slows down. For instance the speed in air is: 11.000293=99.97% of this speed, which seems like almost the same ...
The answer is d) The 1.5 kg ball because it has more momentum.
Momentum = Impulse = Mass + Velocity
= 2 * 10 = 20 kg*m/s
= 1.5 * 20 = 30 kg*m/s
hence the 1.5 kg ball has greater momentum and impulse.
Source: http://forumvu.com/Thread-GSC101-Assignment-1-Solution-Fall-2017
Answer:
False.
Explanation:
This question refers to the rules of American Football. Thus, the line of scrimmage is an imaginary boundary that is established between both teams, to which the offensive line and the defensive line go to start the play.
In this situation, the offensive team must have 7 players in its formation, but within this some players can perform certain movements, with which it is incorrect to say that the formation cannot be modified, since it is constantly seen as some players, such as wide receivers, for example, move during scrimmage formation.
Answer:
Explanation:
= number of polarizers through which light pass through = 5
= Angle between each pair of adjacent polarizers
= Intensity of unpolarized light
= Intensity of transmitted beam after passing all polarizers
It is given that
we know that the intensity of light after passing through "n" polarizers is given as
inserting the values