The C-14 decay is used to estimate the age of an old dead tree. The activity of C-14 in the dead tree is determined to have fall
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The slope of the road can be given as the ratio of the change in vertical
distance per unit change in horizontal distance.
- The maximum steepness of the slope where the truck can be parked without tipping over is approximately <u>54.55 %</u>.
Reasons:
Width of the truck = 2.4 meters
Height of the truck = 4.0 meters
Height of the center of gravity = 2.2 meters
Required:
The allowable steepness of the slope the truck can be parked without tipping over.
Solution:
Let, <em>C</em> represent the Center of Gravity, CG
At the tipping point, the angle of elevation of the slope = θ
Where;
The steepness of the slope is therefore;
Where;
= Half the width of the truck =
= 1.2 m
= The elevation of the center of gravity above the ground = 2.2 m
The maximum steepness of the slope where the truck can be parked is <u>54.55 %</u>.
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Answer:
(A) ratio of electric force to weight will be
(b) Electric field will be
Explanation:
We have given mass of bee = 100 mg =
Charge on bee
Electric field E = 100 N/C
Weight of the bee
Electric force on the bee
So the ratio of electric force on the bee and weight is
(B) To hold the bee in air electric force must be equal to weight of bee
So