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gayaneshka [121]
2 years ago
10

What is the weight on mass

Physics
1 answer:
Gre4nikov [31]2 years ago
3 0

Answer:

6.39×10^23 kg is the weight on mass

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An object that has what acting on it acts as if there were no forces acting on it at all
Mumz [18]
Either no forces or a balanced group of forces
(not a group of "balanced forces"; there's no such thing)
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3 years ago
A 48 kg cart is sitting motionless at the top of the hill. At what height, did the cart start at, to reach 88435 J of energy at
svet-max [94.6K]

Answer : The height is 188 meters  

Explanation :   When the cart reached at the end from top of hill then the cart have potential energy .

Given that,

Potential energy = 88435 J

Mass of cart = 48 kg

We know that,

The potential energy is

mgh =88435

h= \dfrac{88435}{48\times9.8}

h = 187.9 = 188\ meters

So, the height of the top is 188 meters.

7 0
3 years ago
A heat engine exhausts 8900 j of heat while performing 2800 j of useful work. part a what is the efficiency of this engine?
Anuta_ua [19.1K]
Given: Heat Qout means useful work = 2800 J

           Heat Qin = 8900 J

Required; Efficiency = ?

Formula: Efficiency = Qout/Qin = x 100%

                               = 2800 J/8900 J = 0.3146 X 100 %

               Efficiency = 31.46%


7 0
3 years ago
In a circuit, what is responsible for lighting a bulb?
Yakvenalex [24]

Answer:

3) flow of electrons, if im correct

6 0
2 years ago
Read 2 more answers
There is a 3-kg toy cart moving at 4 m/s. Calculate the kinetic<br> energy of the cart.
m_a_m_a [10]

The kinetic energy of the cart is 24 J.

<u>Explanation:</u>

The acceleration of a given mass from rest to the velocity is known as kinetic energy. It gains energy from acceleration and remains in this state until the speed of the object changes.  

The kinetic energy is the given by,

                           K.E = 1/2 mv^2

Given the mass m = 3 kg,        v = 4 m / s.

                            K.E = 1/2 \times 3 \times (4)^2          

                          K.E  = 24 J.

5 0
3 years ago
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