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3 years ago

cup of hot chocolate has a spoon in it. How does the heat move from the hot chocolate to the metal spoon handle?

Physics

1 answer:

serg [7]3 years ago

5 0

The heat moves from the hot chocolate to the handle of the spoon by a process called thermal conduction.

It is the transfer of heat energy from one object to another when they are in contact with eachother.

Hope this answers your question.

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You use a slingshot to launch a potato horizontally from the edge of a cliff with speed v0. The acceleration due to gravity is g

sergij07 [2.7K]

Answer:

t = 2 v₀ / g

Explanation:

For this projectile launch exercise we use the displacement equations

x = vox t

y = y₀ + $v_{oy}$ t - ½ g t²

As it is launched horizontally the vertical velocity is zero and the point of origin of the coordinate system is here, so y₀ is zero.

x = v₀ t

y = ½ g t²

They ask us for the time for which

x = y

vo t = ½ g t²

t = 2 v₀ / g

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3 years ago

What kind of weather would MOST LIKELY lead to hurricane formation?

krok68 [10]

Answer:

The recipe for a hurricane is a combination of warm, humid wind over tropical waters. The temperature of tropical waters must be at least 80 degrees F for up to 165 feet below the ocean’s surface. As this warm water meets the wind that blows west from Africa across the ocean, it causes the water to vaporize. The water vapor then rises into the atmosphere, where it cools and liquefies.

Explanation:

I hope this helps

7 0

3 years ago

Considering the symmetry of the charge distribution, determine the symmetry of the electric field and choose one of the followin

BaLLatris [955]

Answer:

my name jeff hahahhahahahahahhahhahhahhahhahhah the correct a

Explanation:

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3 years ago

A vehicle start moving at 15m/s. How long will it take to stop at a distance of 15m?

Alekssandra [29.7K]

Answer:

Explanation:

Speed= distance/time

Or time = distance/speed

According to your question

Speed=15m/s

and. Distance=1.2km. ,we must change kilometer in meter because given speed is in m/s

D= 1.2km = 1.2×1000m =1200meter

Time = distance/ speed

1200/15 =80second

Or. 1min and 20 sec will be your answer.

3 0

2 years ago

Curtis, a student in our class, makes the following statement: The puck reached a slightly higher location on the ramp than I pr

Sindrei [870]

Answer and Explanation: No, the explanation is not plausible. The puck sliding on the ice is an example of the Principle of Conservation of Energy, which can be enunciated as "total energy of a system is constant. It can be changed or transferred but the total is always the same".

When a player hit the pluck, it starts to move, gaining kinetic energy (K). As it goes up a ramp, kinetic energy decreases and potential energy (P) increases until it reaches its maximum. When potential energy is maximum, kinetic energy is zero and vice-versa.

So, at the beginning of the movement the puck only has kinetic energy. At the end, it gains potential energy until its maximum.

The representation is as followed:

$K_{i}+P_{i}=K_{f}+P_{f}$

$K_{i}+0=0+P_{f}$

$\frac{1}{2}mv^{2} = mgh$

As we noticed, mass of the object can be cancelled from the equation, making height be:

$h=\frac{v^{2}}{2g}$

So, the height the puck reaches depends on velocity and acceleration due to gravity, not mass of the puck.

6 0

3 years ago