Get premium membership and access questions with answers, video lessons as well as revision papers.
P=pgh
=1000x10x30
=300000
=3.0 x10^5pa
joseph rimiru answered the question on October 25, 2017 at 20:04
- Calculate the pressure due to water experience by a sea diver working 35m below the surface of the sea. (Take g=10N/kg, and density of sea...(Solved)
Calculate the pressure due to water experience by a sea diver working 35m below the surface of the sea. (Take g=10N/kg, and density of sea water 1.02g/cm^3)
Date posted: October 25, 2017. Answers (1)
- A density bottle weights 70 g with water and 94 g with liquid A. Find density of liquid A if density of water is 1000 kg/m(Solved)
A density bottle weights 70 g with water and 94 g with liquid A. Find density of liquid A if density of water is 1000 kg/m
Date posted: October 23, 2017. Answers (1)
- A faulty thermometer reads 2oC when dipped in ice at 0oC and 95oC when dipped in steam at 100oC. What would this thermometer...(Solved)
A faulty thermometer reads 2oC when dipped in ice at 0oC and 95oC when dipped in steam at 100oC. What would this thermometer read if placed in water at room temperature at 18oC?
Date posted: October 20, 2017. Answers (1)
- State and explain the functions of the keeper when storing magnets.(Solved)
State and explain the functions of the keeper when storing magnets.
Date posted: October 20, 2017. Answers (1)
- State the reason why mercury is used in thermometer and not water(Solved)
State the reason why mercury is used in thermometer and not water
Date posted: October 19, 2017. Answers (1)
- A block of lead of density 11.3g/cm^3 measures 10 cm x 6cm x 4cm, given that the force of gravity is 10 Nkg^-1. Determine...(Solved)
A block of lead of density 11.3g/cm^3 measures 10 cm x 6cm x 4cm, given that the force of gravity is 10 Nkg^-1. Determine
a. The maximum pressure
b. The minimum pressure that it can exert on a horizontal surface.
Date posted: October 18, 2017. Answers (1)
- The density of mercury is 13600 kg/m^3. Determine the liquid pressure at a point 70 cm under the surface of the mercury. (take g =10...(Solved)
The density of mercury is 13600 kg/m^3. Determine the liquid pressure at a point 70 cm under the surface of the mercury. (take g =10 N/kg)
Date posted: October 18, 2017. Answers (1)
- A diver is 20 m below the surface of water in the sea. If the density of water is 1000 kg/m^3, determine the pressure due...(Solved)
A diver is 20 m below the surface of water in the sea. If the density of water is 1000 kg/m^3, determine the pressure due to the water on the diver. (take g= 10 N kg^-1)
Date posted: October 18, 2017. Answers (1)
- 9. How much force must be applied on a knife of length 15 cm, thickness 0.01mm to a pressure of 10000000pa?(Solved)
9. How much force must be applied on a knife of length 15 cm, thickness 0.01mm to a pressure of 10000000pa?
Date posted: October 18, 2017. Answers (1)
- A block of lead of density 11.3g/cm^3 measures 10 cm x 6cm x 4cm, given that the force of gravity is 10 Nkg^-1. Determine
a. The...(Solved)
A block of lead of density 11.3 g/cm^3 measures 10 cm x 6 cm x 4 cm, given that the force of gravity is
10 N kg^-1. Determine
a. The maximum pressure
b. The minimum pressure that it can exert on a horizontal surface.
Date posted: October 18, 2017. Answers (1)
- A student standing upright exerts a pressure of 27200Nm^-2 on the floor. Given that the total area of contact of shoes and the...(Solved)
A student standing upright exerts a pressure of 27200Nm^-2 on the floor. Given that the total area of contact of shoes and the floor is 0.0736 m^2.
a. Determine the mass of the student.
b. Determine the pressure the student would exert on the floor when stand on one foot.
Date posted: October 18, 2017. Answers (1)
- A force of 1000 N is applied to an area of 10000 mm^2. What is the pressure exerted on the area in pascals? (Solved)
A force of 1000 N is applied to an area of 10000 mm^2. What is the pressure exerted on the area in pascals?
Date posted: October 18, 2017. Answers (1)
- A woman of mass 90 kg stands upright on a tile floor. If the area of contact of her shoes and floor is 300 cm^2,...(Solved)
A woman of mass 90 kg stands upright on a tile floor. If the area of contact of her shoes and floor is 300 cm^2, determine the average pressure she exerts on the floor. (Take g=10 N kg^-1)
Date posted: October 18, 2017. Answers (1)
- The mass of space shuttle was found to be 500 kg. If it weight is 10000 N gravitational field strength of the planet.(Solved)
The mass of space shuttle was found to be 500 kg. If it weight is 10000 N gravitational field strength of the planet.
Date posted: October 18, 2017. Answers (1)
- Calculate the weights of the following mass
a. 4 kg
b. 550 g
c. 0.85 kg
d. 6000000 mg
(Solved)
Calculate the weights of the following mass
a. 4 kg
b. 550 g
c. 0.85 kg
d. 6000000 mg
Date posted: October 18, 2017. Answers (1)
- An astronaut weighs 1000 N on earth. On moon, he weight 200 N. Calculate the moon’s gravitational strength. (take g= 10 N kg^-1)(Solved)
An astronaut weighs 1000 N on earth. On moon, he weight 200 N. Calculate the moon’s gravitational strength. (take g= 10 N kg^-1)
Date posted: October 18, 2017. Answers (1)
- Calculate the weight of each of the following items:
a. A stone of 2.5 kg.
b. A pencil of mass 6.0g.
c. A tanker of 10 tonnes.
(Solved)
Calculate the weight of each of the following items:
a. A stone of 2.5 kg.
b. A pencil of mass 6.0g.
c. A tanker of 10 tonnes.
Date posted: October 18, 2017. Answers (1)
- State a property of electromagnetic wave on which the operation of a radar system is based (Solved)
State a property of electromagnetic wave on which the operation of a radar system is based
Date posted: October 17, 2017. Answers (1)
- State two conditions necessary for the occurrence of an annular eclipse ...(Solved)
State two conditions necessary for the occurrence of an annular eclipse
Date posted: October 17, 2017. Answers (1)
- Why does a gun recoil when it is fired?(Solved)
Why does a gun recoil when it is fired?
Date posted: October 17, 2017. Answers (1)