3 years ago

Heat is transfered from the heating elements to the pot

Physics

1 answer:

Varvara68 [4.7K]3 years ago

8 0

Hear is transferred from the heating elements to the Pot by Conductivity

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Calculate the KE of a car which has a mass of 1000 kg and is moving at the rate of 20 m/s

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The kinetic energy of the car is $2.0\cdot 10^5 J$

Explanation:

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2 years ago

5. Kelvin applied a rightward force of 302 N to a 29 kg desk to accelerate it across the floor. The

Naddik [55]

The force of friction is 213.2 N

Explanation:

The frictional force acting on an object sliding on a surface is given by:

$F_f = \mu mg$

where:

$\mu$ is the coefficient of friction

m is the mass of the object

g is the acceleration of gravity

In this problem we have

$\mu=0.750$

m = 29 kg

$g=9.8 m/s^2$

Therefore, the force of friction is

$F_f = (0.750)(29)(9.8)=213.2 N$

Learn more about friction:

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3 years ago

The force of gravity is an inverse square law. this means that, if you double the distance between two large masses, the gravita

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F~1/r²
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3 years ago

How to use kinetic energy to calculate velocity

BartSMP [9]

As we know the formula of kinetic energy is

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

here given that

KE = 150,000 J

mass = 120 kg

we can use this to find speed

$150,000 = \frac{1}{2} * 120 * v^2$

$v^2 = 2500$

$v = 50 m/s$

So speed of above object is 50 m/s

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3 years ago

Why is oxygen more chemically reactive than nitrogen?

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Answer:

O2 has two more electrons compared to N2, with extra 2 electrons in the higher energy anti-bonding orbitals known as Diradical. These electrons have higher energy and are unpaired; therefore, O2 is more reactive

Explanation:

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3 years ago

Read 2 more answers