Takes place in the space and it can be fluid or solid
Answer:
Muscular Force = Uses when walking
The Force of wind = Force used to turn a windmill
Force of Gravity = Used to drag thing to the centre of the earth
Steam = Type of force used to operate machines
Work = Amount of force Times the distance moved
Foot - Pound = Moving one pound one foot
Newton meter = moving one newton one meter
Explanation:
Answer:
i. + 22.5 m ii. 4.0 m
Explanation:
i. Image distance
Using the lens formula
1/u + 1/v = 1/f where f = focal length = + 18.0 m, u = object distance = distance of shark away from lens = + 90.0 m and v = image distance from lens = unknown
So, we find v
1/v = 1/f - 1/u
= 1/+18 - 1/+90
= (5 - 1)/90
= 4/90
v = 90/4
= + 22.5 m
So the image is real and formed 22.5 m away on the other side of the lens.
ii Length of Shark
Using the magnification formula, m = image height/object height = image distance/object distance. image height = 1.0 m where object height = length of shark.
m = image distance/object distance
= v/u
= +22.5/+90
= 0.25
0.25 = image height/object height
So,
object height = image height/0.25
= 1.0 m/0.25
= 4.0 m
So, the length of the shark is 4.0 m
Answer:
Yes, but its magnetic power is very weak so its not that noticeable to the average person whos not paying attention.
Answer: F = 32 N
Explanation:
F= m x a
m = 8 kg
a = 4 m/s²
F = 8 kg x 4 m/s² = 32 kg m /s² = 32 Newton
