This is the ratio of speed of light in a vacuum to the speed of light in the medium.
chrispohmomanyi answered the question on October 9, 2017 at 10:29
-
State the main disadvantage of convex mirrors.
(Solved)
State the main disadvantage of convex mirrors.
Date posted:
October 9, 2017
.
Answers (1)
-
State two applications of lens.
(Solved)
State two applications of lens.
Date posted:
October 8, 2017
.
Answers (1)
-
State any three disadvantages of a liquid in glass thermometers
(Solved)
State any three disadvantages of a liquid in glass thermometers
Date posted:
October 8, 2017
.
Answers (1)
-
State any three types of thermometers
(Solved)
State any three types of thermometers
Date posted:
October 8, 2017
.
Answers (1)
-
A hockey player hits a ball mass 0.8 kg initially at rest using a force of 840 N. if the hockey stick was in contact...
(Solved)
A hockey player hits a ball mass 0.8 kg initially at rest using a force of 840 N. if the hockey stick was in contact with the ball for 0.2 seconds, what was the speed the ball took off with?
Date posted:
October 6, 2017
.
Answers (1)
-
A boy jumped from a platform and landed on a mattress. Explain how the mattress helps in reducing the force of impact.
(Solved)
A boy jumped from a platform and landed on a mattress. Explain how the mattress helps in reducing the force of impact.
Date posted:
October 6, 2017
.
Answers (1)
-
Water has a refractive index of 1.35. Determine the speed of light in water given that the speed light in air is 3.0 x 10^8...
(Solved)
Water has a refractive index of 1.35. Determine the speed of light in water given that the speed light in air is 3.0 x 10^8 m/s
Date posted:
October 6, 2017
.
Answers (1)
-
A lawn tennis ball of mass 300 g is thrown vertically upwards with a vertically of 10 m/s. The air cause a resistance of 10...
(Solved)
A lawn tennis ball of mass 300 g is thrown vertically upwards with a vertically of 10 m/s. The air cause a resistance of 10 m/s. The air caused a resistance of 0.5 N.
Determine
a. The net force on the ball as it moves up. (Take g=10m/s)
b. The acceleration of the ball
c. The maximum height reached by the ball.
Date posted:
October 6, 2017
.
Answers (1)
-
A simple pendulum was used by a student to determine the acceleration due to gravity, g, she obtained the following values: L = 80.0 cm,...
(Solved)
A simple pendulum was used by a student to determine the acceleration due to gravity, g, she obtained the following values: L = 80.0 cm, the period T was 1.9s. given that T=2π√(l/g) determine the value of g correct to two significant figures.
Date posted:
October 6, 2017
.
Answers (1)
-
A bullet hit a tree trunk of diameter 100 cm at a velocity of 500 m/s, emerging from the other opposite side with a velocity...
(Solved)
A bullet hit a tree trunk of diameter 100 cm at a velocity of 500 m/s, emerging from the other opposite side with a velocity of 200 m/s. Determine the average deceleration of the bullet in the trunk.
Date posted:
October 6, 2017
.
Answers (1)
-
State two types of potential energy
(Solved)
State two types of potential energy
Date posted:
October 6, 2017
.
Answers (1)
-
State any four sources of energy.
(Solved)
State any four sources of energy.
Date posted:
October 6, 2017
.
Answers (1)
-
State any four forms of energy.
(Solved)
State any four forms of energy.
Date posted:
October 6, 2017
.
Answers (1)
-
Define Energy.
(Solved)
Define Energy.
Date posted:
October 6, 2017
.
Answers (1)
-
State two types of fluid flow.
(Solved)
State two types of fluid flow.
Date posted:
October 6, 2017
.
Answers (1)
-
State two applications of Pressure
(Solved)
State two applications of pressure.
Date posted:
October 6, 2017
.
Answers (1)
-
State two types of coefficient of Friction.
(Solved)
State two types of coefficient of Friction.
Date posted:
October 6, 2017
.
Answers (1)
-
State two types of Friction.
(Solved)
State two types of Friction.
Date posted:
October 6, 2017
.
Answers (1)
-
State and explain two types of collisions.
(Solved)
State and explain two types of collisions.
Date posted:
October 6, 2017
.
Answers (1)
-
Define Impulse.
(Solved)
Define Impulse.
Date posted:
October 6, 2017
.
Answers (1)