Find the direction (clockwise or counterclockwise) of the current induced in loop AA if II is steadily decreasing. The current i
1 answer:
You might be interested in
Answer:
Large binocular telescope, Keck 1 telescope, Hobby-Ebberly telescope, Subaru telescope, Gemini North telescope, Magellan 2 telescope
Explanation:
How much light a telescope can collect depends on its diameter, since in a bigger area more photons will be collected.
Remember that in a circle the area is defined as:
(1)
Where A is the area and r is its radius.
However, the radius can be determined by means of its diameter.
(1)
Where d is its diameter.
An example of this is when a person is collecting raindrops with a bucket and with a cup. Since the bucket has a bigger area than the cup, it will collect more raindrops by unit of time. In this scenario the raindrops represent the photons.
To determine the light collecting area of each telescope, equation 2 will be replaced in equation 1.
(3)
Case for Large binocular telescope:
For the second mirror will be the same value
Case for Keck 1 telescope:
Case for Hobby-Ebberly telescope:
Case for Subaru telescope:
Case for Gemini North telescope:
Case for Magellan 2 telescope:
Hence, they may be rank in the following way:
Large binocular telescope, Keck 1 telescope, Hobby-Ebberly telescope, Subaru telescope, Gemini North telescope, Magellan 2 telescope.
<em>Key term:</em>
<em>Photons: particles that constitute light. </em>
Answer:
An <u>applied force</u> is a force that is applied to an object by a person or another object. If a person is pushing a desk across the room, then there is an applied force acting upon the object. The applied force is the force exerted on the desk by the person.
A <u>friction force</u> is the force exerted by a surface as an object moves across it or makes an effort to move across it. There are at least two types of friction force - sliding and static friction. Though it is not always the case, the friction force often opposes the motion of an object. For example, if a book slides across the surface of a desk, then the desk exerts a friction force in the opposite direction of its motion. Friction results from the two surfaces being pressed together closely, causing intermolecular attractive forces between molecules of different surfaces. As such, friction depends upon the nature of the two surfaces and upon the degree to which they are pressed together. The maximum amount of friction force that a surface can exert upon an object can be calculated using the formula below:
= µ •