Answer:
0.0321 g
Explanation:
Let helium specific heat 
Assuming no energy is lost in the process, by the law of energy conservation we can state that the 20J work done is from the heat transfer to heat it up from 273K to 393K, which is a difference of ΔT = 393 - 273 = 120 K. We have the following heat transfer equation:
where 
is the mass of helium, which we are looking for:
Answer:570.54 N
Explanation:
Given
mass of man=76 kg
As man is standing over inclined building therefore
its weight has two components i.e. sin and cos component
Force perpendicular to inclined wall
F=570.54 N
Answer: 5billion years
Explanation: The sun produces energy through radioactive fusion reaction.
Nebula theory states that the gaseous particles of the Earth collapsed as a result of its own gravity which continuously lead to fusion reaction for the production of nuclear energy.
The Core of the Sun is that area up to 25% from the radius of the sun,here the pressure here range up to 250million atmosphere containing mainly hydrogen which gets converted in Helium molecule. The core is the center for energy production accounting for more than 98%, nuclear energy is transmitted at about 4.3million metric tons per second.
The mass of the water in the system is one parameter that can be taken into consideration that is kept constant.
Describe a constant.
A constant in science is a kind of unaltered variable that stays constant together with the experimental process.
It is important to take into account a system's constants, which cannot be altered by experiments or observations.
In conclusion, the mass of the water can be taken into consideration as a continuous system parameter.
Learn more about the constant of the system here:
brainly.com/question/17367653
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Answer:
2.55348650884 m/s
2.67400481907 m/s²
10.6960192763 m/s²
Explanation:
d = Diameter of the ride = 16 ft=
r = Radius = 
t = Time taken = 6 seconds
Velocity is given by
The speed is 2.55348650884 m/s
Acceleration is given by
The acceleration is 2.67400481907 m/s²
When the speed is halved
The acceleration is 10.6960192763 m/s²
