Answer:
500 J
Explanation:
In the case of a rectilinear movement, the work is calculated as the product of Force (N) * movement (m). In your case, unless the angle between the force vector and the displacement vector is different from 0, the work is:
25 N * 20 m = 500 J
Answer:
Explanation:
Represent the car's position as a function
"head start"
"cathching up means" that 
Let F = required force, N
Given:
d = 12 m, distance
W = 280 J, work done
By definition,
W = F*d,
therefore
(F N)*(12 m) = (280 J)
F = 280/12 = 23.33 N
Answer: The force is 23.3 N (nearest tenth)
Answer:
D
Explanation:
The answer is D. Solutions you cannot see the separate substances. however in a mixture you can see the different substances. So the correct choice is D
It's a homogeneous mixture
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