Get premium membership and access questions with answers, video lessons as well as revision papers.
Mass of solid = 1.0 kg
Weight of solid W = mg = 10 N
Tension on the string (T) = 5 N
Upthrust on solid (u) = W – T = 10 – 5 = 5
Relative density (d) = W / u = 10 / 5 = 2.
Mutiso answered the question on October 16, 2018 at 07:13
- Applications of Archimedes principle and relative density(Solved)
Applications of Archimedes principle and relative density
Date posted: October 16, 2018. Answers (1)
- Describe experiment to determine the relative density of a cork(Solved)
Describe experiment to determine the relative density of a cork
Date posted: October 16, 2018. Answers (1)
- A wooden block of dimensions 3 cm × 3 cm × 4 cm floats vertically in methylated spirit with 4 cm of its length in...(Solved)
A wooden block of dimensions 3 cm × 3 cm × 4 cm floats vertically in methylated spirit with 4 cm of its length in the spirit. Calculate the weight of the block. (Density of methylated spirit = 8.0 × 102 kgm-3)
Date posted: October 16, 2018. Answers (1)
- Describe experiment to demonstrate the law of flotation (Solved)
Describe experiment to demonstrate the law of flotation
Date posted: October 16, 2018. Answers (1)
- A block of metal of volume 60 cm3 weighs 4.80 N in air. Determine its weight when fully submerged in a liquid of density 1,200...(Solved)
A block of metal of volume 60 cm3 weighs 4.80 N in air. Determine its weight when fully submerged in a liquid of density 1,200 kgm-3.
Date posted: October 16, 2018. Answers (1)
- Describe an experiment to demonstrate Archimedes principle(Solved)
Describe an experiment to demonstrate Archimedes principle
Date posted: October 16, 2018. Answers (1)
- Describe the applications of centripetal force(Solved)
Describe the applications of centripetal force.
Date posted: October 16, 2018. Answers (1)
- Derive an expression for centripetal acceleration(Solved)
Derive an expression for centripetal acceleration.
Date posted: October 16, 2018. Answers (1)
- Define the term centripetal force(Solved)
Define the term centripetal force.
Date posted: October 16, 2018. Answers (1)
- A wheel of radius 50 cm is rolled through a quarter turn. Calculate (i) The angle rotated in radians (ii) The distance moved...(Solved)
A wheel of radius 50 cm is rolled through a quarter turn. Calculate (i) The angle rotated in radians (ii) The distance moved by a point on the circumference.
Date posted: October 16, 2018. Answers (1)
- Define radian(Solved)
Define radian.
Date posted: October 16, 2018. Answers (1)
- What is angular motion?(Solved)
What is angular motion?
Date posted: October 16, 2018. Answers (1)
- What is circular motion?(Solved)
What is circular motion?
Date posted: October 16, 2018. Answers (1)
- Find the power of a concave lens of a focal length 25 cm.(Solved)
Find the power of a concave lens of a focal length 25 cm.
Date posted: October 15, 2018. Answers (1)
- Explain the common eye defects and their corrections(Solved)
Explain the common eye defects and their corrections.
Date posted: October 15, 2018. Answers (1)
- Explain the uses of lenses on optical devices(Solved)
Explain the uses of lenses on optical devices
Date posted: October 15, 2018. Answers (1)
- Experiment to determine the focal length of a converging lens using the lens formula(Solved)
Experiment to determine the focal length of a converging lens using the lens formula
Date posted: October 15, 2018. Answers (1)
- The lens of a slide projector focuses on an image of height 1.5m on a screen placed 9.0 m from the projector. If the height...(Solved)
The lens of a slide projector focuses on an image of height 1.5m on a screen placed 9.0 m from the projector. If the height of the picture on the slide was 6.5 cm, determine, (a) Distance from the slide (picture) to the lens (b) Focal length of the lens
Date posted: October 15, 2018. Answers (1)
- The focal length of a converging lens is found to be 10 cm. How far should the lens be placed from an illuminated object to...(Solved)
The focal length of a converging lens is found to be 10 cm. How far should the lens be placed from an illuminated object to obtain an image which is magnified five times on the screen?
Date posted: October 15, 2018. Answers (1)
- An object is placed 12 cm from a converging lens of focal length 18 cm. Find the position of the image(Solved)
An object is placed 12 cm from a converging lens of focal length 18 cm. Find the position of the image
Date posted: October 15, 2018. Answers (1)