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2 years ago

Tabitha knows the redshift value of a particular celestial object. What can she use this information most directly to find out?

Physics

1 answer:

AlekseyPX2 years ago

3 0

She can use the information of redshift of a celestial body is to find the age and distance of the object.

<h3>What is red shift?</h3>

'Red shift' is a critical idea for astronomers. The frequency of the light is increased, so the light is observed as moving towards the red side of the range.

Tabitha knows the redshift value of a particular celestial object. She uses this information to observe the consequence of the redshift.

Thus, the red shift value is used to determine the age and distance of the object.

Learn more about red shift.

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What is the relationship between Hectare and cubic meter<br>

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Answer;

1 hectare meter is equal to 10000 cubic meter.

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On a production possibilities curve, any point that falls outside the frontier line is considered

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Answer:

The Production Possibilities Curve (PPC) is a model used to show the tradeoffs associated with allocating resources between the production of two goods. The PPC can be used to illustrate the concepts of scarcity, opportunity cost, efficiency, inefficiency, economic growth, and contractions.

Explanation:

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3 years ago

Which of the following are true about centripetal force? Check all that apply. A. Without centripetal force, an object cannot ac

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B. Friction can be a centripetal force, such as when it keeps a car on the road going around a curve.

C. Gravity can be a centripetal force, such as when it pulls a satellite in its orbit.

Explanation:

The centripetal force is any force that keeps an object moving in circular motion, "pulling" the object towards the centre of the circular trajectory.

Several forces can act as centripetal force. Examples are:

- friction: when a car is going around the curve, is moving by circular motion. The force that keeps the car in circular motion is, in fact, the friction between the tires and the road.

- Gravity: when a satellite moves around the Earth, it is moving by circular motion. The force that keeps the satellite in circular motion is the gravitational attraction between the Earth and the satellite, that pushes the satellite towards the Earth.

The other two options are not correct because:

A) An object can also accelerate if there is no centripetal force (for example, a car speeding up on a straight road is accelerating, but there is no centripetal force since there is no circular motion

D) Centripetal force is not an outward force, since it pushes the object inwards (towards the centre of the trajectory).

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3 years ago

Read 2 more answers

In the year 1178, five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon

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Complete Question

In the year 1178, five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon, causing a red glow in and around it. It is hypothesized that this event created the crater Giordano Bruno, which is right on the edge of the area we can usually see from Earth.

How long after the asteroid hit the Moon,which is $3.84 *10^5 km$ away ,would the light first arrive on the earth in seconds

Answer:

The time it would take is $t = 1.28 \ sec$

Explanation:

The objective of this question is to obtain the time the light would arrive earth

We are told that the distance from moon to earth is

$D = 3.84*10^5km = 3.84*10^5 * 1000 = 3.84*10^8m$

Now generally time is mathematically represented as

$t = \frac{D}{c}$

The c here is the speed of light which has a value of $c = 3*10^8 m/s$

Now substituting values

$t = \frac{3.84 * 10^8 }{3*10^8}$

$= 1.28 \ sec$

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3 years ago

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A person throws a ball and angle of 30° a velocity of 40 m/s how fast is the ball traveling up?

Zanzabum

Answer:

20 m/s

Explanation:

The vertical component of the velocity of the ball is equal to the length of the perpendicular of a triangle such that it makes an angle of 30 degrees from the base and the length of the hypotenuse is 40 m/s. Sin(∅)*hypotenuse is the length of the perpendicular.

Vertical component of velocity is given by 40Sin(30°)=20

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3 years ago