Answer:
mass = 14
Explanation:
equation ; p = m / v
2 = m / 7
to get the m, your variable, by itself you would multiply 7 onto the other side of the equation, getting this;
2 * 7 = m
and 2 * 7 = 14, therefore m = 14, so your mass would be 14!
Hope this helps!
The change in momentum, Δp, of the body is 23520 Kgm/s
<h3>Momentum </h3>
- The momentum of a body is defined as the product of its mass and velocity
Momentum, p = m×v
<h3>Change in momentum </h3>
Change in momentum is equal to the final momentum minus the intiala momentum
Change in momentum = mv - mu
Mass of car = weight/g
where g = 10 m/s^2
Mass of car = 15680/10
Mass of car = 1568 Kg
Change in momentum = 1568 Kg × 20 - 1568 Kg × 5
Change in momentum, Δp = 23520 Kgm/s
Therefore, the change in momentum, Δp, of the body is 23520 Kgm/s
Learn more about momentum at: brainly.com/question/7538238
Answer:
option A
Explanation:
given,
light is incident on the plane surface at (i) = 55°
angle of refraction (r) = 37°
μ is the refractive index of the material
using Snell's law
The refractive index of the material is
hence, the correct answer is option A
D = vt
where:
v = speed
d = distance
t = time
Based on the formula, each quantity is directionally proportional to each other. Since we don't have enough numbers to work with, we will utilize our concept skills.
If the car travels half the speed, then the car is slowing down and covers a short distance in a certain amount of time than it did originally. So we divide the default distance by 2.
180 / 2 = 90
The new distance so far is 90 miles.
But now it takes the car 3 times as long to get to its destination. The longer it takes, the more distance you will cover. Multiply the current distance by 3.
90 * 3 = 270