Answer:
= 287kW
Explanation:
Knowing the enthalpy data, we have to

So,

Here,
m=mass flow rate
h= Enthalpy of refrigerant at the compressor
Replacing
= 1.2 × 239.16
= 287kW
F = ma = 1000*(23-0)/14 = 1642.86 N
goU 234 = 234.04095amu & mass of He4 = 4.002602 amu)
The intaneuos velocity of an object is the
Battery
mobile phone
Explanation:
From the given options the items that are matter are the battery and mobile phone.
What is matter?
- Matter is anything that has weight and occupies space.
- There are three states of matter which are solid, liquid and gas
- A solid is a rigid body with an ordered arrangement of atom
- A liquid is matter that can flow
- Gases are random molecules.
A battery and mobile phones are solids
learn more:
State of matter brainly.com/question/10972073
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