<h2>
Number of revolutions required to travel 100 yards is 57.</h2>
Explanation:
Diameter of tire,D = 20 inches
Perimeter of tire = πD
Perimeter of tire = π x 20 = 62.8 inches
Distance traveled = 100 yards
1 yard = 36 inches
Distance traveled = 100 x 36 = 3600 inches
In one revolution it travels 62.8 inches.
Number of revolutions required to travel 100 yards is 57.
Speed of light relative to the boys = 300,000,000 m/s
Speed of light relative to a stationary observer on the side of the road =
<h3>300,000,000 m/s</h3><h3>What is special theory of relativity?</h3>
- The theory of special relativity explains how speed affects space, time, and mass.
- Small amounts of mass (m) can be interchangeable with large amounts of energy (E), as defined by the classic equation E = mc2, according to the theory, which offers a means for the speed of light to define the link between energy and matter.
<h3>What are the special relativity's guiding principles?</h3>
- The laws of physics should be independent of the uniform motion of an inertial frame of reference, and the speed of light should be constant in any such frame, according to two fundamental tenets that constitute the basis of the special theory of relativity.
To learn more about special relativity visit:
brainly.com/question/12497537
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Answer: a) 31.07 * 10^6 N/C ; b) 11.68 * 10^6 N/C
Explanation: in order to solve this problem we have to use the Coulomb force which is given by:
F=k*q1*q2/r^2
( see attach for details)
Answer:C
Explanation:
Given
weight of object is equal to weight of object
Suppose weight of Planck is W
suppose weight is at distance of x cm from wedge
balancing Torque
i.e. at a distance of 0.25L from the Left end
Answer:
B) Decrease
Explanation:
Resistance offered due to inductor in any AC circuit is given as
here we know that
= angular frequency
now by ohm's law we know that
here we have
so current is inversely depends on the frequency of AC
so if frequency is increased then the current will decrease
