Seismic P waves and Seismic S waves
Answer:
The change on the internal energy of the system is -2505 joules
Explanation:
To solve this problem, we're going to use the first law of thermodynamics, that it's essentially a law of conservation of energy. It states that the change on the internal energy of a system is the sum of the work (performed on the system or performed by the system) and the heat the system exchange with the surroundings (could be entering on the system or leaving the system), mathematically:
with ΔU the change on the internal energy, Q the heat and W the work.
As the question say the gun imparts on the potato 950 joules of work, that means the work is done by the gone so by convention it's negative. The heat released is 1555 joules and because is leaving the system is negative too, then:
Answer:d= 0.0219m
Explanation:
P= force /area
Area =πr^2=πd^2/4
πd^2/4=force/pressure
πd^2/4=34/90000
πd^2/4=0.0003778
πd^2= 0.0003778*4
πd^2=0.001511
Since π=3.142
d^2= 0.001511/3.142
d^2= 0.000480
d= square root of 0.000480
d= 0.0219m
Answer:
0.1 seconds
Explanation:
The frequency is the reciprocal of the period 1/10
1/10 = 0.1 hence
0.1 seconds
Answer:
The kinetic energy of the ball when it leaves the gun is equal to 5 J.
Explanation:
It is given that, a child does 5.0 J of work on a spring while loading a ball into a spring-loaded toy gun. We need to find the kinetic energy of the ball when it leaves the gun when the mechanical energy of the system is conserved.
Mechanical energy is equal to the total energy of the system. It remains conserved due to the law of conservation of mechanical energy.
So, the kinetic energy of the ball when it leaves the gun is equal to 5 J. Hence, this is the required solution.