Answer:
A)
2. very cool but very luminous
6. found in the upper right of the H-R diagram
B)
1. The majority of stars in our galaxy
5. the Sun, for example
7. a very hot and very luminous star
C)
3. not much larger in radius than Earth
4. very hot but very dim
Explanation:
Main-sequence stars :
Main-sequence stars are the star which having hydrogen in the core and also having stable inward and outward force.
White dwarfs :
This is also a star like the sun .The temperature of these type of star above 100,000 Kelvin.The mass of White dwarfs is less than the sun but slightly more than earth.
Red giant or supergiant stars :
This is the biggest star in the universe.When a star does not having hydrogen fuel in the core then Red giant or supergiant stars are formed.
A) 2 ,6
B) 1 , 5 ,7
C) 3 ,4
Answer:
swimming, cycling, and jogging
Explanation:
The internal resistance of ammeter is zero and voltmeter is infinite and, ammeter is connected in series and the voltmeter is in parallel.
To find the answer, we have to study about the internal resistance.
<h3>
What is the internal resistance of an ammeter and voltmeter?</h3>
- A circuit has a parallel connection for the voltmeter and a series connection for the ammeter.
- An ammeter is used to calculate the amount of current flowing through a circuit.
- The value of the potential difference or voltage across the load is measured using a voltmeter (resistor).
- The voltage reading on the voltmeter represents the amount of energy that each unit of charge has transmitted to the component.
- An ideal ammeter should have zero internal resistance since it should permit current to flow through it.
- To measure the current flowing through a circuit, an ammeter is connected in series with the circuit.
- Since the internal resistance of the ideal voltmeter should prevent any current from passing through it, it is infinite.
- Voltmeter measures the potential difference, it is connected in parallel.
Thus, we can conclude that, the internal resistance of ammeter is zero and voltmeter is infinite and, ammeter is connected in series and the voltmeter is in parallel.
Learn more about the internal resistance here:
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Answer:
The mass of the object is 24.5 kg and weight of the object on Mars is 91.14 N.
Explanation:
Weight of the object on the surface of Earth, W = 245 N
On the surface of Earth, acceleration due to gravity, g = 10 m/s²
Weight of an object is given by :
W = mg
m is mass
So, the mass of the object is 24.5 kg
Acceleration due to gravity on Mars, g' = 3.72 m/s²
Weight of the object on Mars,
W' =mg'
W' = 24.5 kg × 3.72 m/s²
= 91.14 N
So, the weight of the object on Mars is 91.14 N.