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4vir4ik [10]
4 years ago
5

What are the two most important properties of a telescope?

Physics
1 answer:
tigry1 [53]4 years ago
8 0
1.Light-collecting area
2.Angular resolution
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Newton’s law of gravity says the gravitational force between two objects is proportional to:
Nat2105 [25]

Answer:

Mass of the object or earth

3 0
3 years ago
A speed boat travels from the dock to the first buoy a distance of 20 meters in 18 seconds it began the trip at a speed of 0 m/s
Lunna [17]

Answer:

1.11 m/s

Explanation:

The motion of the boat is an example of accelerated motion, since the velocity is not constant. However, we don't need to find the acceleration, because we are only interested in the average velocity of the boat, which is given by:

v=\frac{d}{t}

where d is the total distance covered and t the time taken. In this problem, the boat covered a distance of d = 20 m and it takes t = 18 s, therefore the average velocity is

v=\frac{20 m}{18 s}=1.11 m/s

6 0
3 years ago
calcula la potencia por hora de un radiador, sabiendo que esta conectado a un contacto común 110 v. y requiere 20 Amp.
Ira Lisetskai [31]

calculate the power per hour of a radiator, knowing that it is connected to a common 110 v contact. and requires 20 Amp.

Answer:

2.2kWh

Explanation:

Given parameters:

Potential difference  = 110v

Current  = 20A

Unknown:

Power  = ?

Solution:

To solve this problem, we use the expression below:

        Power  = IV

 Power  = 110 x 20  = 2200W

  This is therefore 2.2kW

 Power per hour  = 2.2kWh

8 0
3 years ago
A driver brings a car to a full stop in 2.0 s. If the car was
Dvinal [7]
Working displayed in the picture below, the answer is -11 m s^-2

7 0
3 years ago
Which does not contain a lens?
denis23 [38]
Im pretty sure it’s A eye
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3 years ago
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