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djverab [1.8K]
3 years ago
14

How can you tell that toast is not warmed up by conduction?

Physics
1 answer:
solmaris [256]3 years ago
8 0

Answer:

Toasting in a toaster is usually considered  by (infra red) radiation. But the hot coils touch the toast so an element of heating by conduction occurs as well.

Explanation:

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Woud earth be the same after losing its gravity,,.¿and how it gets affected by others planets,,.¿​
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If the earth lost its gravity we could not walk or live our normal ways

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Tire or false
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A player strikes a hockey puck giving it a velocity of 30.252 m/s. The puck slides across the ice for 0.267 s after which time i
erica [24]

Answer:

The average drag force is  1.206 (-i)  N

Explanation:

You have to apply the equations of<em> Impulse</em>:

I=FmedΔt

Where I and Fmed (the average force) are vectors.

The Impulse can also be expressed as the change in the <em>quantity of motion</em> (vector P)

I=P2-P1

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You can calculate the quantity of motion at the beggining and at the end of the given time:

Replace the mass in kg, dividing the mass by 1000 to convert it from g to kg.

P1=(0.179kg)(30.252m/s) i=  5.414 i kg.m/s

P2=0.179kg)(28.452m/s) i = 5.092 i kg. m/s

Where i is the unit vector in the x-direction.

Therefore:

I= 5.092 i - 5.414 i = -0.322 i

The average drag force is:

Fmed= I/Δt = -0.322 i/ 0.267s = -1.206 i N

3 0
4 years ago
In introductory physics laboratories, a typical Cavendish balance for measuring the gravitational constant G uses lead spheres o
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Answer:

F = 7.7*10^{-10}N

Explanation:

You need to be careful with units for this problem. The force will be:

F =\frac{K*m1*m2}{d^2}

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stepan [7]

Answer:

Hydrogen will undergo nuclear fusion ,

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here, it is being explained:-

The first thing that will inevitably arise would be that nuclear fusion would arise with hydrogen.

When fuel from the larger star's outer shell piles up on the white dwarf's surface, the temperature and density continuously increase as a result of which hydrogen will undergo nuclear fusion.

7 0
4 years ago
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