Answer:
3000 hurs
Explanation: just divide 150000 by 50 and get 3000
It’s 4 because a coiled springs is closely spaced then widen
Answer: 1) a = 9.61m/s² pointing to west.
2) (a) Δv = - 37.9km/s
(b) a = - 6.10⁷km/years
Explanation: Aceleration is the change in velocity over change in time.
1) For the plane:
a = 9.61m/s²
The plane is moving east, so velocity points in that direction. However, it is stopping at the time of 13s, so acceleration's direction is in the opposite direction. Therefore, acceleration points towards west.
2) Total change of velocity:
km/s
The interval is in years, so transforming seconds in years:
v = 
km/years
Calculating acceleration:
Acceleration of an asteroid is a = -6.10⁷km/years .
The mass is 15kg
i hope this helps
Answer: b) Pressure and internal energy increases.
Explanation: According to the temperature and pressure law, also known as Gay-Lussac's Law, pressure and temperature are <u>directly</u> <u>proportional</u>, which means that when temperature increases so does pressure and vice-versa, so, since temperature increased, pressure will also increase.
Internal Energy (Thermal Energy) is the total amount of energy associated with the motion of the atoms or molecules in the system. Temperature and Internal Energy are also <u>directly</u> <u>proportional</u>, because, as temperature increases, the movement of the particles increases and so do its internal energy. So, as temperature rises internal energy also rises.
For this bottle, as temperature rises, both pressure and internal energy also rises, so the right alternative is "Pressure and internal energy increases."
