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kvasek [131]
3 years ago
6

A car moving at a speed of 20 m/s has a kinetic energy of 200,000 J from that motion. What is the car's mass?

Physics
1 answer:
zhenek [66]3 years ago
8 0

Answer:

i think the answer is 1000 kg but i might be wrong

You might be interested in
Why is it that the two possible faults with inductors are short circuit and open circuit?
lukranit [14]
These are the most common type of faults not just inductors but also with other elements too like resistors,transformers, generators etc.
open circuit fault means the flow of current is disrupted some how in the circuit and the circuit stops operating. and for short circuit fault the current in the system will be pretty high and this short circuit current or fault current will always run back to the fault location, if the inductor got short circuited somehow then the fault current will only run through it because it will then provide a very low impedence path
5 0
3 years ago
If the temperature of the solar surface is 5800 K and Wien's law for the peak wavelength of the spectrum of the Sun, assumed to
enot [183]

Answer:

The dominant wavelength of the sun is 499.65nm

Explanation:

Wien's law is defined as:

\lambda_{max} T = c (1)

Where \lambda_{max} is the maximum wavelength, c is the Wien's constant and T is the temperature.

Therefore, \lambda_{max} can be isolated from equation 1.  

\lambda_{max} = \frac{c}{T} (2)

\lambda_{max} = \frac{2.898x10^{-3}m\cdot K}{T}

Notice that it is necessary to express the Wien's constant in units of meters

c = 2.898x10^{-3}m\cdot K . \frac{1x10^{9}nm}{m} ⇒ 2.898x10^{6} nm \cdot K

Finally, equation 2 can be used:

\lambda_{max} = \frac{2.898x10^{6} nm \cdot K}{5800 K}

\lambda_{max} = 499.65nm

Hence, the dominant wavelength of the sun is 499.65nm

6 0
3 years ago
If a car travels 30 mi. north for 30 min., 60 mi. east for 1.0 hour, and 30 mi. south for 30 min., what is the average speed of
Virty [35]
60 mph is your answer
4 0
3 years ago
if 162.4 j of heat are added to a gas contained within a cylinder and the gas expands, doing 87.3 j of work, what is the change
labwork [276]

The changes in internal energy of the system <u>75.1 J.</u>

The internal energy of a thermodynamic system is the total energy contained in it. It is the energy required to create or prepare a system in a given internal state and includes contributions of potential energy and internal kinetic energy.

Calculation:

Internal energy =  162.4 j - work done

                        =  162.4 j - 87.3 j

                         =<u> 75.1 J</u>

<u />

Internal energy, in thermodynamics, is the property or state function that defines the energy of matter in the absence of capillary action or external electric, magnetic, or other fields.

Internal energy is the microscopic energy contained in the matter given by the random and disordered kinetic energy of the molecules. It also includes the potential energy between these molecules and the nuclear energy contained in the atoms of these molecules.

Learn more about internal energy here:-brainly.com/question/15735187

#SPJ4

6 0
1 year ago
An 6 kg object accelerating from 17 m/s to 10 m/s. What is the change in momentum of the object?
Oksana_A [137]

Answer:

the change is = 17 × 10 = <u>1</u><u>7</u><u>0</u><u> </u>=28.33

6

3 0
3 years ago
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