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- An object is placed 30cm from a concave mirror of focal length 20cm. Calculate;
a. Image position
b. Magnification(Solved)
An object is placed 30cm from a concave mirror of focal length 20cm. Calculate;
a. Image position
b. Magnification
Date posted: April 11, 2019. Answers (1)
- State the laws of reflection which apply to both concave and convex mirrors(Solved)
State the laws of reflection which apply to both concave and convex mirrors.
Date posted: April 11, 2019. Answers (1)
- Define the term aperture(Solved)
Define the term aperture.
Date posted: April 11, 2019. Answers (1)
- Find the moment of force in the figure below(Solved)
Find the moment of force in the figure below
Date posted: April 11, 2019. Answers (1)
- Find the moment of force in the figure below, if F=10N and d=30cm(Solved)
Find the moment of force in the figure below, if F=10N and d=30cm
Date posted: April 11, 2019. Answers (1)
- Find the area of a rectangle that measures 4.26m by 2.77m and write your answer correct to 2
significant figures and 4 significant figures.(Solved)
Find the area of a rectangle that measures 4.26m by 2.77m and write your answer correct to 2
significant figures and 4 significant figures.
Date posted: April 11, 2019. Answers (1)
- Find the reading in the figure below.If it has a zero error of -0.03(Solved)
Find the reading in the figure below.If it has a zero error of -0.03
Date posted: April 11, 2019. Answers (1)
- What does Self demagnetisation mean?(Solved)
What does Self demagnetisation mean?
Date posted: April 11, 2019. Answers (1)
- What does Shielding a magnetic material mean?.(Solved)
What does Shielding a magnetic material mean?.
Date posted: April 11, 2019. Answers (1)
- What is meant by the term magnetic lines of force-(Solved)
What is meant by the term magnetic lines of force-
Date posted: April 11, 2019. Answers (1)
- Define the term magnetic field(Solved)
Define the term magnetic field.
Date posted: April 11, 2019. Answers (1)
- The diagram below shows the magnetic field pattern between two magnets, P and Q(Solved)
The diagram below shows the magnetic field pattern between two magnets, P and Q
State which of the two magnets P and Q is stronger. Explain
Date posted: April 11, 2019. Answers (1)
- Define the following terms (i)Area (ii)Volume (iii)Mass (iv)Density(Solved)
Define the following terms
(i)Area
(ii)Volume
(iii)Mass
(iv)Density
Date posted: April 11, 2019. Answers (1)
- Define the following terms; (i)A laboratory (ii)hypothesis (iii)A law or principle (iv)A theorem (Solved)
Define the following terms;
i)A laboratory
ii)hypothesis
iii)A law or principle
iv)A theorem
Date posted: April 11, 2019. Answers (1)
- State six branches of physics and what they deal with.(Solved)
State six branches of physics and what they deal with.
Date posted: April 11, 2019. Answers (1)
- A ball is thrown horizontally from the top of a building and lands 100 m from the foot
of the building. If the building is 60...(Solved)
A ball is thrown horizontally from the top of a building and lands 100 m from the foot
of the building. If the building is 60 m high, calculate
a. The time of flight of the ball
b. Initial horizontal component of the velocity
c. Vertical component velocity of the ball just before it hits the ground?
Date posted: April 10, 2019. Answers (1)
- An object falls from a helicopter moving horizontally at a speed of 200 m/s. given that
the helicopter is at a height of 8 km from...(Solved)
An object falls from a helicopter moving horizontally at a speed of 200 m/s. given that
the helicopter is at a height of 8 km from the ground, calculate
a. Time it takes the object to reach the ground
b. The distance travelled by the object in this time
Date posted: April 10, 2019. Answers (1)
- A piece of ice breaks off a hanging cliff and falls 45 m to hit water below. Determine
the time it takes and the velocity at...(Solved)
A piece of ice breaks off a hanging cliff and falls 45 m to hit water below. Determine
the time it takes and the velocity at which it the water.
Date posted: April 10, 2019. Answers (1)
- From the bottom of a building, a student notices that it takes 4 s for a stone projected
upwards with to hit the ground. If the...(Solved)
From the bottom of a building, a student notices that it takes 4 s for a stone projected
upwards with to hit the ground. If the stone water released with an initial velocity of
8 m/s, find the height of the building.
Date posted: April 10, 2019. Answers (1)
- A ball is projected vertically upwards with an initial velocity of 20 m/s. Determine
a. its maximum height
b. the time taken to return to its starting...(Solved)
A ball is projected vertically upwards with an initial velocity of 20 m/s. Determine
a. its maximum height
b. the time taken to return to its starting point.
Date posted: April 10, 2019. Answers (1)