An object is stuck to a wall with that displays normal force
1 answer:
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Answer: C)The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.
Explanation:
The speed of each car is defined as:
where d is the distance traveled by the car and t is the time taken.
For the yellow car, d=400 mi and t=8 h, so its speed is
For the green car, d=400 mi and t=10 h, so its speed is
So, the correct choice is
C)The yellow car was faster. Yellow traveled at a speed of 50 mph while green was traveling at an average of 40 mph.
Answer:
The spacing between the slits is <u>0.40233 mm</u>
Explanation:
Let 'd' be the distance between the slits and 'D' be the distance of the screen from the plane of slits.
We know that , in an interference pattern the fringe(dark or bright) width is given by -
f =
For 11 bright fringes , if its total spanning distance is 52.0 mm , then for one bright fringe , the fringe width(f) would be -
f = = 4.72 mm
∴ From above equations ,
= 4.72 mm = (4.72 ×
) m
Substituting the values in above equation -
= 4.72 ×
∴ d = 0.0004023 m =0.4023 mm