Refer to the diagram shown below.
The given data is
mass, kg Coordinates. m
------------- -----------------
2 (0, 0)
2 (2, 0)
4 (2, 1)
Total mass, M = 2+2+4 = 8kg
Let (x,y) be the coordinates of M.
Then, taking moments about the origin, we obtain
8x = 2*0 + 2*2 + 4*2 = 12
x = 1.5 m
8y = 2*0 + 2*0 + 4*1 = 4
y = 0.5 m
Answer: (1.5, 0.5) m
Explanation:
Given that, you are taking a picture of a giraffe that is standing far away from you. The image is just too small, so you swap the 60-mm-focal-length lens in your camera for a 960 mm telephoto lens such that,
We need to find the the factor with which the size of the image increases. It can be calculated by taking ratios of both
So,
So, the size of image increases by a factor of 16. Hence, this is the required solution.
Answer:
Incomplete question.
Explanation:
What do you require? is it the work done?
Answer:
False
Explanation:
Scientific models are not always built to scale and may not be fully accurate
Answer:
2.28 cm
Explanation:
Radius of the proton if v and B is perpendicular will be,
Now,
mass of proton, .
Radius of the orbit, .
Magnetic field, .
Charge on the proton, .
Now substitute all the variables in r.
.
.
Therefore the radius of the orbit of moving proton is 2.28 cm.