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madam [21]
3 years ago
5

Please answer me my question​

Physics
1 answer:
Angelina_Jolie [31]3 years ago
5 0
3 - b) weight decreases
4 -a) 50 kg as mass is same everywhere
5 - b) 200 dynes
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An oil bath maintained at 50.5°C loses heat to its surroundings at the rate of 4.68 kJ/min. Its temperature is maintained by an
NISA [10]

Answer:

The fraction of the time is 38.67%.

Explanation:

Given that,

Energy = 4.68 KJ

Resistance = 60

Voltage =110 V

If the rate of heat energy supplied  by the coil to the oil bath = Q

Q=4.68\ kJ/min

We need to calculate the power released by the resistor at voltage

P=\dfrac{V^2}{R}

Put the value into the formula

P=\dfrac{110^2}{60}

P=201.7\ W

P=12.102\ KJ/min

We need to calculate the fraction of the time

T=\dfrac{Q}{P}

Put the value into the formula

T=\dfrac{4.68}{12.102}

T=0.3867

The percentage of time is

T = 38.67\%

Hence, The fraction of the time is 38.67%.

8 0
3 years ago
Importance of SI system in points​
monitta

Answer:

SI unit is an international system of measurements that are used universally in technical and scientific research to avoid the confusion with the units. Having a standard unit system is important because it helps the entire world to understand the measurements in one set of unit system.

4 0
3 years ago
The deflection of alpha particles in rutherford’s gold foil experiments resulted in what change to the atomic model? the additio
skelet666 [1.2K]
The answer is: The addition of a small dense nucleus at the center of the atom.
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You are pushing a 20 N object for 3 meters. If you have to push
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Answer:

For the first equation, the work done would be 60 J, but if it is done with 30 N, it would have been 90 J.

Explanation:

it's actually pretty easy one you practice it for some time. W ( work done in joules ) = F ( force put onto the object in newtons ) * D ( distance traveled in meters ).

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Ken wants to jump and have some fun too! Barbie loans Ken her bungee cord. Is this a good idea? Explain with evidence and reason
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