Consider two metallic rods mounted on insulated supports. One is neutral, the other positively charged. You bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand.
Answers
Answer:The rod touching your hand will have a Negative charge.
Explanation: This phenomenon is described as charging by induction,the other iron rod became charged as a result the repulsion force existing between the positively charged iron rod and the electronic forces around the election sphere. This make it different from the charging done by contact where both iron rods have close contact and electron transfer is achieved through contact. The shows that an electric charge can be persuaded and caused to transfer to another metallic particle without physical contact with the charged metallic particle.
Answer:
The initial neutral rod would be induced with negative charges.
Explanation:
This process is called charging by induction. When you bring the charged rod close to that of the neutral, the charges in it would be redistributed. The positively charged rod attracts the negative charges within the neutral rod and repel like charges. Touching the neutral with hand causes the positive charge to be neutralised due to earthing. Thus the neutral rod has now been charged negatively.
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A kite suspended in the sky is flowing back and forth. Which type of friction is being described?
A. Cooling and crystallization
B. Weathering and erosion
C. Cementation and compaction
D. Drying and decaying
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Answer:
A
Explanation: I don't think I ever heard of Crystalization being apart of the rock Cycle but I could be wrong hope this helps
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Answer: parasitic organisms cause harm to other organisms.
Answer:
parasitic organisms cause harm to other organisms.
Explanation:
b. radiation.
c. conduction.
d. density.
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Heattransfer within a fluid takes place by convectioncurrents. The correct option is a.
Convection currents are principally responsible for heat transmission within a fluid. Heat is transferred through the fluid's own movement through convection.
Heat causes a fluid's particles to gain energy and lose density, which causes them to rise. Heat energy is carried upward by the heated fluid.
A cycle of circulationresults from the movement of colder fluid from the surroundings into its place in the interim.
Through this mechanism, heat can be moved from hotter to cooler areas of the fluid. Convectioncurrents are frequently seen in fluids like air and liquids, and they're important for both engineering and a variety of natural occurrences.
Thus, the correct option is a.
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Answer:
the answer is A. convection currents
Explanation:Convection currents transfer heat from one place to another by mass motion of a fluid such as water, air or molten rock. The heat transfer function of convection currents drives the earth’s ocean currents, atmospheric weather and geology. Convection is different from conduction, which is a transfer of heat between substances in direct contact with each other.
hopes this helps yall
Answers
Answer:
Gravitational potential energy
Explanation:
The gravitational potential energy is the energy that an object has because of its positive with respect to a certain reference level (generally assumed to be the ground level).
The magnitude of the gravitational potential energy is given by
where
m is the mass of the object
g is the strenght of the gravitational field
h is the height of the object with respect to the reference level
From the formula, we see that the higher the object is, the larger its gravitational potential energy is.
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Answers
The wavelength of the radio wave is 5.5 × 10³ m. If the frequency of the wave is 5.5 × 10⁴ hertz and the speed of the wave is 3.0 × 10⁸ m/sec.
The speed(v) of a wave is the product of wavelength(λ) and the frequency(η). We can understand this relation by the definition of the speed, which is the distance travelled by the object in unit time. The unit of distance is meter, also the unit of the wavelength is meter. On the other hand the unit of frequency is sec⁻¹. So,
Speed of a wave(v) = wavelength(λ) × Frequency(η)
Wavelength(λ) = speed of the wave(v)/Frequency(η)
Wavelength(λ) = (3.0 × 10⁸)/(5.5 × 10⁴)
Wavelength(λ) = 5.5 × 10³ m
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