What type of exoplanet would you expect to cause the largest Doppler shift in the spectrum of its star? a.) A massive planet that is close to the sun b.) A low mass planet that is close to its sun c.) an average mass planet that is at an average distance from its sun d.) A massive planet that is far from its sun e.) a low mass planet that is far from its sun

Answers

Answer 1

Answer:

Answer:

Explanation:

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What is the equation for calculating a machine's efficiency?I searched all over my textbook and couldn't find it, so I decided to post my question here.

Answers

Efficiency of a machine is defined as the ratio of work performed on it to work performed by it.

What is the fundamental meaning of efficiency?

Efficiency is the capacity to achieve something or get a desired outcome without wasting resources, time, money, energy, or effort. In a broader sense, it is the capacity to carry out tasks effectively and efficiently.
Effectiveness and efficiency are frequently misunderstood. Efficiency is often a quantifiablenotion that is based on the ratio of total useful input to total useful output.
When a machine uses the majority of the power provided to it for its load and just a small portion for waste, it is said to be highly efficient.

Efficiency = Output energy/ Input energy

The percentage value of efficiency of a machine is calculated as:

Efficiency = (Output energy/ Input energy) X 100%

Learn more about the machine efficiency with the help of the given link:

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Efficiency is usually defined as how much useful work output do you get for each unit of work input.

Efficiency = work output/work input

Work input = effort force * effort distance
Work output = load force * load distance

How much work does a mother do if she lifts each of her twin babies upward 1 meter? Each baby weighs 90 newtons.

Answers

You need to do 90+90 N to get the full weight and times it by 1 m because the formula for work is force x distance so it equals 180.

90+90=180 joules of baby work(:

What would be the result of an alpha particle coming into a magnetic field?A) The alpha particle will stop moving.
B) The alpha particle will reverse its direction.
C) The alpha particle will be deflected in a curve path.
Eliminate
D) The alpha particle will continue to travel in a straight line.

Answers

Answer: C) The alpha particle will be deflected in a curve path.

Explanation:

Alpha particle carries +2 charge. It is a Helium ion: He⁺²

When any charged particle enters a magnetic field, it experiences a magnetic force perpendicular to direction of the velocity of the particle and the direction of the magnetic field. Thus, the alpha particle moves in a circular path.

Hence, the correct answer is: The result of an alpha particle coming into a magnetic field is C) The alpha particle will be deflected in a curve path.

The right answer for the question that is being asked and shown above is that: "C) The alpha particle will be deflected in a curve path. " the result of an alpha particle coming into a magnetic field is that C) The alpha particle will be deflected in a curve path.

How much net force is needed to accelerate a 15 kg mass at 2.8 m/s^2

Answers

Refer to the 2th Law of Newton

F = m. a

F = 15 x 2.8 = 42 N

What is the final speed of a lion initially running at a speed of 30 m/s, if it accelerates ata rate of 3 m/s3 for 5 seconds?

Answers

The final speed of a lion running 30 m/s accelerates at a rate of 3 m/s3 for 5 seconds it’s 3.2

Sonny took 16 seconds to finish a 100-m race. What was
Sonny's average speed in the race

Answers

Speed = Distance/Time

=> Speed = 100m/16s

=> Speed = 6.25m/s

=> Speed = 6.25 ms^-1

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the 2,200 meters-per-second flux in an ordinary water reactor is 1 .5 x 1013 neutronsl cm2-sec. at what rate are the thermal neutrons absorbed by the water?

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If we assume that 60 % of the kinetic energy delivered by a 1.80-kg hammer with a speed of 7.80 m/s is transformed into heat that flows into the nail and does not flow out, what is the temperature increase of an 8.00-g aluminum nail after it is struck ten times?