95% postive the answer for this question is D. How it allows the purchaser to listen to music anywhere
The formula for the critical angle is:
sin (critical angle) = refractive index of solution / refractive index of air
=> refractive index of solution / refrative index of air = sin (48°)
=> refractive index of solution / refractive index of air = 0.7431
=> refractive index of solution = 0.7431 * refractive index of air
=> refractive index of solution = 0.7431 * 1.00
=> refractive index of solution = 0.74
Answser: 0.74
Answer:
Distance
Explanation:
Work can be defined as the energy transferred to a physical object by exertion of a force on the object to cause a displacement of the object. Thus, work is typically done when a person or simple machine move an object over a distance through the application of a force.
Mathematically, work done is given by the formula;
Where,
W is the work done
F represents the force acting on a body.
d represents the distance covered by the body.
A dependent variable is the event expected to change when an independent variable is manipulated.
Hence, distance is the dependent variable because its value changes with respect to the amount of force exerted on an object.
48 years, 1912-1960, July 4, the 50-star flag makes its debut in Philadelphia, Pennsylvania. A 50th star was added to the American flag in honor of Hawaii's August 21, 1959 admission into the Union
Answer:
The apparent weight of the pilot is 3311 N
Explanation:
Given;
radius of the vertical circle, r = 600 m
speed of the plane, v = 150 m/s
mass of the pilot, m = 70 kg
Weight of the pilot due to his circular motion;
Real weight of the pilot;
Apparent weight - Real weight of pilot = weight due to centripetal force
Therefore, the apparent weight of the pilot is 3311 N