Answer: Option (B) is the correct answer.
Explanation:
A process in which transfer of heat occurring when one object touches another object is known as conduction.
For example, when a pan is heated and then an egg is placed over the pan. Then there will be transfer of heat from pan towards the egg.
As a result, the egg gets cooked because the egg was touching the pan.
Hence, we can conclude that it is conduction because the egg is touching the pan.
Heat transfer is used to fry an egg in a pan, It is conduction because the egg is touching the pan. Hence the correct option is option (B).
When frying an egg in a pan, the primary mode of heat transfer is conduction. Conduction is the transfer of heat through direct contact between two objects or substances.
The pan is heated on a stovetop or a heat source, which causes the pan to become hot. When the egg is placed in the pan, the heat from the pan is transferred to the egg through the process of conduction.
Option A suggests that it is conduction because the egg gets cooked, but this answer does not explain the specific mechanism of heat transfer involved.
Option C mentions convection because oil is used in frying. While oil can enhance the cooking process, convection is not the primary mode of heat transfer in this scenario.
Option D states it is convection because you can feel the heat a few inches away from the pan.
Therefore, option B is the correct answer, as it correctly identifies that the heat transfer involved in frying an egg in a pan is conduction because the egg is touching the pan.
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B.Power is the force of work over a certain distance.
C.Power is the rate at which work is accomplished.
D.Power is the energy supplied in a force.
Answer: Hello mate!
The velocity of the pony is constant in magnitude, so you may think that the pony is not acelerating, but you need to notice that the track has an ocal shape.
This means that the direction of the velocity is changing all the times, this mean that there is an "acceleration" changing the direction of the velocity, this is called centripetal acceleration, then the pony is accelerating around the track.
The right answer is C.
The answer is c i took the test
c. conductivity
b. malleability
d. composition
The kinetic energy of a 1.40 kg discus with a speed of 22.5 m/s is 354.375 joule.
The energy that an object has because it is moving is known as kinetic energy in physics. It is described as the amount of effort required to accelerate a body of a specific mass from rest to its specified velocity. The body keeps its kinetic energy after gaining it during acceleration, barring changes in speed.
Up until a change in speed, the body maintains the kinetic energy it gained during acceleration.
Mass of the discus: M = 1.40 kg.
Speed of the discus: v = 22.5 m/s.
Hence, the kinetic energy of the discus= 1/2×Mv²
= 1/2 × 1.40 × 22.5² joule
= 354.375 joule.
Hence, the kinetic energy of a 1.40 kg discus with a speed of 22.5 m/s is 354.375 joule.
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a. periodic but not oscillatory (I.e. the hand does not oscillate or undergo oscillations).
b. periodic and also oscillatory.
c. not periodic and not oscillatory.
d. oscillatory but not periodic.
Scenario 2: The motion of a person rocking back and forth on a rocking chair to the beat of a song is:_______
a. periodic but not oscillatory.
b. periodic and also oscillatory.
c. not periodic and not oscillatory.
d. oscillatory but not periodic.
Please explain why your answers for the two scenarios are either the same or different. Your answer should include brief definitions of periodic and oscillatory (or oscillations).
Answer:
The correct answers are
a. periodic but not oscillatory (I.e. the hand does not oscillate or undergo oscillations).
b. periodic and also oscillatory.
Explanation:
Oscillatory motion are motion that involves the repeated forward and backward motion of an object or mater between two position, points or states. An oscillatory motion that repeats itself at a regular interval or cycle is a periodic oscillatory motion. Examples of periodic oscillatory motion includes, a pendulum, the upward and downward motion of a weighted spring or a sine wave
while periodic motion is the repeated movement of an object over a specific period of time. The period is the time for the motion to repeat itself measure in seconds.
The motion of the hand of the clock is periodic as it revolves round every minute, but it is in a clockwise direction hence it is not oscillatory
while the motion f a person rocking back and forth on a rocking chair to the beat of a song is periodic and oscillatory