Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

In the diagram below, find the pressure of the air in the tube X in the mmHg. The liquid shaded is mercury and the atmospheric...

In the diagram below, find the pressure of the air in the tube X in the mmHg. The liquid shaded is mercury and the atmospheric pressure is 760mmHg.

Answers

Pressure = 760mmHg Sin30° = 380mmHg
Px + 380 = 760
PX = 760 - 380 = 380mmHg

Kavungya answered the question on May 27, 2019 at 08:17

Answer Attachments

Next: The flow diagram below represents photosynthesis process. Study it and answer the questions that follow. Name the substances:A,B and C.

Previous: The diagrams below shows two types of patterns of lignification in xylem vessels. Name the pattern in Figure 1 . Figure 2 .

View more Physics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

The paddle wheel in the diagram below is made of a light material and fixed on a well oiled pivot. What will happen to the wheel... (Solved)

The paddle wheel in the diagram below is made of a light material and fixed on a well oiled pivot.

What will happen to the wheel when water is being heated?

Date posted: May 27, 2019 . Answers (1)
Name and explain the features that make a retort stand stable. (Solved)

Name and explain the features that make a retort stand stable.

Date posted: May 27, 2019 . Answers (1)
Determine the reading on the vernier calliper shown in the figure below. (Solved)

Determine the reading on the vernier calliper shown in the figure below.

Date posted: May 27, 2019 . Answers (1)
The figure below shows an image formed by concave mirror. Complete by drawing rays and locate the position of the object. (Solved)

The figure below shows an image formed by concave mirror. Complete by drawing rays and locate the position of the object.

Date posted: May 27, 2019 . Answers (1)
The figure below represents crests of straight wave produced in a ripple tank. Determine the wavelength of the waves. (Solved)

The figure below represents crests of straight wave produced in a ripple tank.

Determine the wavelength of the waves.

Date posted: May 27, 2019 . Answers (1)
Arrange the following electromagnetic waves in order of their increasing wavelengths.X-rays, Gamma rays, Ultraviolet, Visible light, Microwaves, Infra red. (Solved)

Arrange the following electromagnetic waves in order of their increasing wavelengths.X-rays, Gramma rays, Ultraviolet, Visible light, Microwaves, Infra red.

Date posted: May 27, 2019 . Answers (1)
The waves have a speed of 0.12 m/s in the deep water. Wave crests are 0.08 apart to the deep water. Calculate the frequency of... (Solved)

The waves have a speed of 0.12 m/s in the deep water. Wave crests are 0.08 apart to the deep water. Calculate the frequency of the source producing the waves.

Date posted: May 27, 2019 . Answers (1)
The threshold frequency of sodium is 5.6 x 10¹⁴Hz. Planck's constant = 6.6 x 10^-34Js. Find;(i) Work function of sodium (ii) The kinetic energy of... (Solved)

The threshold frequency of sodium is 5.6 x 10¹⁴Hz. Planck's constant = 6.6 x 10^-34Js. Find;
(i) Work function of sodium
(ii) The kinetic energy of the ejected electrons when sodium is shone with light of frequency 8.6 x 10¹⁴Hz.

Date posted: May 27, 2019 . Answers (1)
You are provided with two identical cells. Two lamps and a switch. (i) Draw a circuit diagram that would ensure that the bulbs have maximum brightness.... (Solved)

You are provided with two identical cells. Two lamps and a switch.
(i) Draw a circuit diagram that would ensure that the bulbs have maximum brightness.
(ii) State one advantage of using such an arrangement in (i) above to light a whole house with many bulbs.

Date posted: May 27, 2019 . Answers (1)
Using the circuit shown in figure below, calculate the effective capacitance. (Solved)

Using the circuit shown in figure below, calculate the effective capacitance.

Date posted: May 27, 2019 . Answers (1)
Two springs of negligible weight of spring constant K1 = 24 N/m and K2 = 48 N/m respectively are connected end to end and suspended from... (Solved)

Two springs of negligible weight of spring constant K1 = 24 N/m and K2 = 48 N/m respectively
are connected end to end and suspended from a fixed point as shown below.

Determine;
I the total extension when a mass of 1.2 kg is hung from the lower end.
II the constant of the combination

Date posted: May 27, 2019 . Answers (1)
The figure below shows a horizontal tube with two vertical tubes X and Y of equal diameter. Water flows through the horizontal tube from right... (Solved)

The figure below shows a horizontal tube with two vertical tubes X and Y of equal diameter. Water flows through the horizontal tube from right to left.

(i) Indicate the water levels in the tube X and tube Y.
(ii) Explain your observation in (i)

Date posted: May 27, 2019 . Answers (1)
State one advantage of an electromagnet as compared to a permanent magnet. (Solved)

State one advantage of an electromagnet as compared to a permanent magnet.

Date posted: May 27, 2019 . Answers (1)
An immersion water heater rated 1800 w is used to heat water from 10⁰C to 90⁰C. Calculate the time taken, if the mass of water... (Solved)

An immersion water heater rated 1800 w is used to heat water from 10⁰C to 90⁰C. Calculate the time taken, if the mass of water is 6 kg. (Take specific heat capacity of water as 4200J kg ^-1K^-1)

Date posted: May 27, 2019 . Answers (1)
A student heated some pure water and noticed it boiled at 96⁰C instead of 100⁰C. If the thermometer was not faulty, what is the possible... (Solved)

A student heated some pure water and noticed it boiled at 96⁰C instead of 100⁰C. If the thermometer was not faulty, what is the possible cause for this?

Date posted: May 27, 2019 . Answers (1)
A cork of volume 200 cm³ is floating on water. If the density of the cork is 0.25 g/cm³. Calculate; (i) the mass of the cork. (ii)... (Solved)

A cork of volume 200 cm³ is floating on water. If the density of the cork is 0.25 g/cm³.
Calculate;
(i) the mass of the cork.
(ii) the upthrust force on the cork.
(iii) the minimum force required to immerse the cork completely.

Date posted: May 27, 2019 . Answers (1)
In the diagram below determine the weight of the metre rule shown below. (Solved)

In the diagram below determine the weight of the metre rule shown below.

Date posted: May 27, 2019 . Answers (1)
An object of mass, m₁ has weight, w₁ in air and w₂ in water. Explain which of two weights is greater than the other. (Solved)

An object of mass, m₁ has weight, w₁ in air and w₂ in water. Explain which of two weights is greater than the other.

Date posted: May 27, 2019 . Answers (1)
An object of density 9 x 10² and mass 1.8 kg is completely immersed in water. Calculate the mass of water displaced in kg. (Take... (Solved)

An object of density 9 x 10² and mass 1.8 kg is completely immersed in water. Calculate the mass of water displaced in kg. (Take density of water as 1000 kg / m³)

Date posted: May 27, 2019 . Answers (1)
An object of weight 18 N attached at the end of a spring causes an extension of 0.3 cm on the spring. Determine the spring... (Solved)

An object of weight 18 N attached at the end of a spring causes an extension of 0.3 cm on the spring. Determine the spring constant.

Date posted: May 27, 2019 . Answers (1)