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Inertia, the box is reluctant to motion.
joseph rimiru answered the question on January 1, 2018 at 19:19
- State three differences between the eye and the camera(Solved)
State three differences between the eye and the camera.
Date posted: December 29, 2017. Answers (1)
- Explain how thunder and lightning is produced during rainstorm.(Solved)
Explain how thunder and lightning is produced during rainstorm.
Date posted: December 29, 2017. Answers (1)
- Ether is put in a beaker which is placed on a thin film of water. A student blows the ether through a pipe continuously, state and...(Solved)
Ether is put in a beaker which is placed on a thin film of water. A student blows the ether through a pipe continuously, state and explain the observation made after some time.
Date posted: December 18, 2017. Answers (1)
- It is observed that during a total eclipse of the sun, both light and heat disappear simultaneously. Explain the observation(Solved)
It is observed that during a total eclipse of the sun, both light and heat disappear simultaneously. Explain the observation.
Date posted: December 14, 2017. Answers (1)
- An n-type semiconductor is obtained when germanium crystal is doped with arsenic. Explain how this change occurs. (N/B. Number of electrons in the outer...(Solved)
An n-type semiconductor is obtained when germanium crystal is doped with arsenic. Explain how this change occurs. (N/B. Number of electrons in the outer most shell for germanium = 4, and arsenic = 5
Date posted: December 14, 2017. Answers (1)
- What is meant by an extrinsic semiconductor?(Solved)
What is meant by an extrinsic semiconductor?
Date posted: December 14, 2017. Answers (1)
- Explain how doping produces an n-type semiconductor for a pure semiconductor material(Solved)
Explain how doping produces an n-type semiconductor for a pure semiconductor material.
Date posted: December 14, 2017. Answers (1)
- Explain why one feels colder when walking on a concrete floor than on a wooden carpet(Solved)
Explain why one feels colder when walking on a concrete floor than on a wooden carpet.
Date posted: December 13, 2017. Answers (1)
- A pure sample of silicon can be changed into p-type semi conductor by adding an impurity. Explain how this is achieved.(Solved)
A pure sample of silicon can be changed into p-type semi conductor by adding an impurity. Explain how this is achieved.
Date posted: December 12, 2017. Answers (1)
- Differentiate between a semiconductor and a conductor.
and give one example of each respectively.
(Solved)
Differentiate between a semiconductor and a conductor.
and give one example of each respectively.
Date posted: December 12, 2017. Answers (1)
- Describe how a p-type semiconductor is formed as explained in electronic study.(Solved)
Describe how a p-type semiconductor is formed as explained in electronic study.
Date posted: December 12, 2017. Answers (1)
- State three advantages of using GM tube instead of a diffusion cloud chamber to detect radiations from radiations from radioactive substance.(Solved)
State three advantages of using GM tube instead of a diffusion cloud chamber to detect radiations from radiations from radioactive substance.
Date posted: December 12, 2017. Answers (1)
- Explain why some of the tracks formed in a diffusion chamber are observed to be:
a. Short
b. Straight
(Solved)
Explain why some of the tracks formed in a diffusion chamber are observed to be:
a. Short
b. Straight
Date posted: December 12, 2017. Answers (1)
- Radiations from a radioactive source are detected using the Geiger Muller (GM) tube. State the function of:
i. The mica window
ii. Bromine gas in the tube
(Solved)
Radiations from a radioactive source are detected using the Geiger Muller (GM) tube. State the function of:
i. The mica window
ii. Bromine gas in the tube
Date posted: December 12, 2017. Answers (1)
- The half life of a radioactive substance is 12 years. Determine the time it would take to decay to 12.5% of it original value....(Solved)
The half life of a radioactive substance is 12 years. Determine the time it would take to decay to 12.5% of it original value.
Date posted: December 12, 2017. Answers (1)
- An element x has a half life of 3.83 days. If a sample of this element is found to disintegration per second at a particular...(Solved)
An element x has a half life of 3.83 days. If a sample of this element is found to disintegration per second at a particular time. Determine its activity rate after 19.15 days.
Date posted: December 12, 2017. Answers (1)
- Short thick track were observed when a radiation was released into a diffusion cloud chamber. State with a reason the type of radiation was...(Solved)
Short thick track were observed when a radiation was released into a diffusion cloud chamber. State with a reason the type of radiation was detected.
Date posted: December 12, 2017. Answers (1)
- A certain sample of radioactive material has a half life of 130 days and has 1.0 x 10^20 atoms initially. Determine the number of radioactive...(Solved)
A certain sample of radioactive material has a half life of 130 days and has 1.0 x 10^20 atoms initially. Determine the number of radioactive atoms that have decayed after 390 days.
Date posted: December 11, 2017. Answers (1)
- A radioactive Cobalt 60 has a half life of 5.25 years. What fraction of the original atoms in a sample will remain after 21 years?(Solved)
A radioactive Cobalt 60 has a half life of 5.25 years. What fraction of the original atoms in a sample will remain after 21 years?
Date posted: December 11, 2017. Answers (1)
- A student carried out an experience to study the atoms of gold, a beam of a-particles was directed onto a thin sheet of gold. The...(Solved)
A student carried out an experience to study the atoms of gold, a beam of α-particles was directed onto a thin sheet of gold. The results were as follows:
i. Majority of the particles went through undeflected.
ii. A few particles deflected through varying angles up to 180⁰.
What inference can be made from these observations about the structure of the atom?
Date posted: December 11, 2017. Answers (1)