Answer:
v = 4.08m/s₂
Explanation:
A 50-kg meteorite moving at 1000 m/s strikes Earth. Assume the velocity is along the line joining Earth's center of mass and the
meteor's center of mass.
(a) Calculate the amount of kinetic energy converted to internal energy measured Irk in., the Earth reference frame.
(b) What is the gain in Earth's kinetic energy?
(c) Why does the ground around where the meteor strikes get so hot?
(a) Calculate the amount of kinetic energy converted to internal energy measured Irk in., the Earth reference frame.
(b) What is the gain in Earth's kinetic energy?
(c) Why does the ground around where the meteor strikes get so hot?
1 answer:
Answer:
a) amount of kinetic energy converted to internal energy = 2.5 x 10 raised to power 7 Joule
b) Kinetic energy gained by the earth = 2.1 x 10-16J
c) All the kinetic energy is converted to internal energy and the energy is further converted to thermal energy hence the reason for the hotness at around where the meteorite strikes.
Explanation:
The detailed steps and appropriate application of the law of conservation of momentum is as shown in the attached file.
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Complete Question
The complete question is shown on the first uploaded image
Answer:
The force on the lid when the air inside the cooker had been heated to 120°C is =
The force on the lid when the air inside the cooker had been heated to 20°C is =
The
Explanation:
The main concept used to solve this problem is Pressure-Temperature Law.
Initially, find the pressure inside the pressure cooker by using the Pressure-Temperature Law. Then, find the force exerted by the air inside cooker on the lid of the cooker.
Fundamentals :
The Pressure-Temperature Law states that the pressure of the of a given gas held at constant volume is directly proportional to the Kelvin temperature. The increase in pressure results in an increase in the temperature and vice-versa.
The expression of the Pressure-Temperature Law is as follows:
Here, and
are the initial and final pressures and and
are the initial and final temperatures respectively.
The force in terms of pressure can be given by the following expression.
F=(ΔP) A
Here, A is the area on which the pressure is applied and ΔP is the change in pressure
The step- step calculation is shown on the second,third,fourth, fifth image
Note: is the pressure of atmosphere
Answer:
A. Volume is unchanged
Explanation:
= initial pressure of the gas = 722 torr = 96258.7 pa
= final pressure of the gas = 0.950 atm = 96258.75 pa
= initial temperature = 32 °F = 272.15 K
= final temperature = 273 K
= initial volume
= final volume
Using the Equation
Inserting the values
Hence the volume is unchanged.