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elixir [45]
2 years ago
11

Give a real-world example of how energy is transformed from electrical energy to thermal energy. Describe how the heat can be tr

ansferred to other objects through conduction, convection, or radiation.​
Physics
1 answer:
timofeeve [1]2 years ago
3 0

Answer:

A microwave

Explanation:

Car

Lightbulb is a really good one

Same with the sun. That one has Chemical as well

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Which if the following doesn't cause an object to accelrate it's q 4
Slav-nsk [51]

B. Constant velocity


6 0
3 years ago
Read 2 more answers
A car moving with an intial velocity of 60m/s is brought to rest in 30 seconds calculate the acceleration
gregori [183]

Answer:

a = 2 [m/s^2]

Explanation:

To solve this problem we must use the expressions of kinematics, we must bear in mind that when a body is at rest its velocity is zero.

v_{f} = v_{i} - (a*t)

where:

Vf = final velocity = 0

Vi = initial velocity = 60 [m/s]

a = desacceleration [m/s^2]

t = time = 30 [s]

Note: the negative sign of the above equation means that the car is slowing down, i.e. its speed decreases.

0 = 60 - (a*30)

a = 2 [m/s^2]

6 0
3 years ago
PHYSICSSS PLEASE HELP
Aleonysh [2.5K]

Answer:

1. 10.5 Kg

2. s/g

Explanation:

1. Determination of the mass of gasoline

Density of gasoline = 0.7 Kg/L

Volume of gasoline = 15 L

Mass of gasoline =?

The density of a substance is simply defined as the mass of the substance per unit volume of the substance. Mathematically, the density of a substance can be expressed as:

Density = mass / volume

With the above formula, we can obtain the mass of the gasoline as follow:

Density of gasoline = 0.7 Kg/L

Volume of gasoline = 15 L

Mass of gasoline =?

Density = mass / volume

0.7 = Mass of gasoline / 15

Cross multiply

Mass of gasoline = 0.7 × 15

Mass of gasoline = 10.5 Kg

2. Density has various units some are listed below:

I. Kilogram per litre (Kg/L)

II. Kilogram per cubic metre (Kg/m³)

III. Milligram per millilitre (mg/mL)

IV. Gram per millilitre (g/mL)

V. Gram per cubic centimetre (g/cm³)

Considering the options given in the question above, it is evident that second per gram (s/g) is not a unit of density because density is mass per unit volume.

3 0
3 years ago
People hoping to travel to other worlds are faced with huge challenges. One of the biggest is the time required for a journey. T
Elena L [17]

Answer:

It would take 8.22037 hrs away. Wouldn't it?

Explanation:

Because

    4.11016

    4.11016

            15

= 8.22037

5 0
3 years ago
What did Bohi's model of the dom inchide that Ruthextends model did not have
Aleksandr-060686 [28]

Answer:

Electrons revolves around the nucleus in a fixed orbits with fixed energy.

electron clouds.

Explanation:

Rutherford in his model of atom explained:

  • Maximum space inside the atom is empty.
  • Electron revolves around the the center called nucleus.
  • Nucleus contains the positive charge.

Bohr's in his model explained that:

  • Electrons revolves around the nucleus in a fixed orbit named as shells.
  • Each orbits or shells has fixed amount of energy and size.

6 0
3 years ago
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