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Used to prevent excessive flow of current
isaacmuthini answered the question on October 14, 2017 at 12:26
- A turntable is rotating at 66 revolutions per second. If it is 6 cm in radius determine the linear speed of a point made on...(Solved)
A turntable is rotating at 66 revolutions per second. If it is 6 cm in radius determine the linear speed of a point made on its circumference.
Date posted: October 12, 2017. Answers (1)
- A vehicle of mass 900 kg moves on a circular path of 30 m. The force of friction between the tyres and the tarmac is...(Solved)
A vehicle of mass 900 kg moves on a circular path of 30 m. The force of friction between the tyres and the tarmac is 5400 N. Determine the maximum speed at which the vehicle can be driven on the path without skidding.
Date posted: October 12, 2017. Answers (1)
- A body of mass 1.00 kg is tied to the end of a string 100 cm long and it is whirled in a horizontal circle....(Solved)
A body of mass 1.00 kg is tied to the end of a string 100 cm long and it is whirled in a horizontal circle. If the tension experienced in the string is 162 N, determine the velocity of the body.
Date posted: October 12, 2017. Answers (1)
- A small body moving in a horizontal circle of radius 0.4 makes 16 revolutions per second. Determine its centripetal acceleration.(Solved)
A small body moving in a horizontal circle of radius 0.4 makes 16 revolutions per second. Determine its centripetal acceleration.
Date posted: October 12, 2017. Answers (1)
- A car of mass 1400 kg is moving with a velocity of 35 m/s around a flat bend of radius 300 m. what is the...(Solved)
A car of mass 1400 kg is moving with a velocity of 35 m/s around a flat bend of radius 300 m. what is the minimum force between the types and the road that will prevent the car from sliding off.
Date posted: October 12, 2017. Answers (1)
- A bucket of water was swung in a vertical circle without the water pouring out. Explain.(Solved)
A bucket of water was swung in a vertical circle without the water pouring out. Explain.
Date posted: October 12, 2017. Answers (1)
- A balloon of volume 300 ml at a temperature of 393 K was filled with air. Determine the volume when the temperature rises to 473...(Solved)
A balloon of volume 300 ml at a temperature of 393 K was filled with air. Determine the volume when the temperature rises to 473 K at the same pressure.
Date posted: October 12, 2017. Answers (1)
- If a gas in a cylinder initially at 30°C and at a pressure of 1.03 x 10^5 pa is compressed to one sixth of its...(Solved)
If a gas in a cylinder initially at 30⁰C and at a pressure of 1.03 x 10^5 pa is compressed to one sixth of its original volume. Determine the pressure required to do this.
Date posted: October 12, 2017. Answers (1)
- Some 4 kg water in a plastic jug was heated using an immersion heated 2.0 kw. It was on for 6 minutes. Determine
a. The quantity...(Solved)
Some 4 kg water in a plastic jug was heated using an immersion heated 2.0 kw. It was on for 6 minutes. Determine
a. The quantity of heat gained by the water.
b. The temperature change
Date posted: October 12, 2017. Answers (1)
- Explain why it is necessary to leave an air space in a soda bottle when it is kept in the refrigerator.(Solved)
Explain why it is necessary to leave an air space in a soda bottle when it is kept in the refrigerator.
Date posted: October 12, 2017. Answers (1)
- A rectangular brick of weight 10 N, measures 50 cm × 30 cm × 10 cm. calculate the values of the maximum and minimum pressures...(Solved)
A rectangular brick of weight 10 N, measures 50 cm × 30 cm × 10 cm. calculate the
values of the maximum and minimum pressures which the block exert when resting on a horizontal plane
Date posted: October 12, 2017. Answers (1)
- State two differences between mass and weight.(Solved)
State two differences between mass and weight.
Date posted: October 12, 2017. Answers (1)
- State and explain two factors affecting the surface tension(Solved)
State and explain two factors affecting the surface tension.
Date posted: October 12, 2017. Answers (1)
- 100 cm^3 of fresh water of density 1,000 kgm^-3 is mixed with 100 cm^3 of sea water of density 1030 kgm^-3. Calculate the density of...(Solved)
100 cm^3 of fresh water of density 1,000 kgm^-3 is mixed with 100 cm^3 of sea water of density 1030 kgm^-3. Calculate the density of the mixture.
Date posted: October 12, 2017. Answers (1)
- Define the term relative density as used in quantity measurement.(Solved)
Define the term relative density as used in quantity measurement.
Date posted: October 12, 2017. Answers (1)
- The mass of an empty density bottle is 20 g. Its mass when filled with water is 40.0 g and 50.0 g when filled with...(Solved)
The mass of an empty density bottle is 20 g. Its mass when filled with water is 40.0 g and 50.0 g when filled with liquid X. Calculate the density of liquid X if the density of water is 1,000 kgm^-3
Date posted: October 12, 2017. Answers (1)
- A block of mass 187.5 gis 5 cm long, 2.0cm thick, and 7.5 cm high.Calculate the density in s.i units(Solved)
A block of mass 187.5 gis 5 cm long, 2.0cm thick, and 7.5 cm high.Calculate the density in s.i units.
Date posted: October 12, 2017. Answers (1)
- 1. Which is greater
a. 3:2 or 5:4
b. 3:4 or 5:7
(Solved)
1. Which is greater
a. 3:2 or 5:4
b. 3:4 or 5:7
Date posted: October 12, 2017. Answers (1)
- The price of a piece of land was adjusted in the ratio 7:3. If the original price was sh.210000. What is the new price?(Solved)
1The price of a piece of land was adjusted in the ratio 7:3. If the original price was sh.210000. What is the new price?
Date posted: October 11, 2017. Answers (1)
- What is the rate of consumption per day if twenty bays of beans are consumed in 100 days?(Solved)
What is the rate of consumption per day if twenty bays of beans are consumed in 100 days?
Date posted: October 11, 2017. Answers (1)