A book sits at the top of a bookshelf is this question kinetic or potential energy
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Two billiard balls move toward each other on a table. The mass of the number three ball, m1, is 5 g with a velocity of 3 m/s. The mass of the eight ball, m2, is 6 g with a velocity of 1 m/s. After the balls collide, they bounce off each other. The number three ball moves off with a velocity of 5 m/s. What is the final velocity and direction of the eight ball? +8.6 m/s +5.7 m/s –5.7 m/s –8.6 m/s.?
B.the direction of the work
C.the total distance an object is moved
D.the rate at which work is accomplished
Please Help
Answers
The correct answer to this question is D) The rate at which work is accomplished.
EXPLANATION:
Let us consider a body performs W amount of work due to the application of some external forces.
Let the body does that work during the time interval of t seconds.
Hence, the power of the body is defined as the rate of doing work or the work done per unit time. We know that energy is the capacity to do work. So, power can be defined as the rate of consumption of energy.
Mathematically power can be written as -
Power P = .
Hence, the correct definition of power is that the rate at which work is accomplished.
The power is the rate at which work is accomplished, option is correct.
Further Explanation:
The power is the rate of transformation energy which is used by another body.
The power is the quantity with only magnitude so it is a scalar quantity. The standard of international unit is watt, it is also written as J/s. The standard of international unit watt in honor of James Watt.
A quantity is said as a vector if it has some magnitude and direction in order to give the details regarding the quantity.
A quantity is said as a scalar if it has only the magnitude in order to give the details regarding the quantity.
Concept:
The term power is defined as “The rate at which the work is finished or the energy is transferred from one place to another or transformed into another form.”
The term energy is defined as the capacity to do work or result in some displacement by applying some force.
The expression for power is:
Here, is the power,
is the change in energy and
is the change in the time.
Therefore, the power is the rate at which work is accomplished, option is correct.
Learn more:
1. Work and power brainly.com/question/9566221
2. Calculate power brainly.com/question/2829572
3. Energy and SI unit https://brainly.in/question/1227001
Answer Details:
Grade: Middle school
Subject: Physics
Chapter: Kinematics
Keywords:
Define, power, quantity, work, accomplished, direction, total distance, object, moved, rate, option, D.
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Answer:
stratus clouds
Explanation:
They are uniform and flat, producing a gray layer of cloud cover which may be precipitation-free or may cause periods of light precipitation or drizzle.
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Answer:
2
Explanation:
Final answer:
The object's density is calculated by dividing its mass (10 grams) by its volume (5 cubic centimeters), yielding a density of 2 g/cm³.
Explanation:
The density of an object is calculated by dividing its mass by its volume. For the object in question, its mass is 10 grams and its volume is 5 cubic centimeters. Therefore, you would calculate density as follows: Density = Mass / Volume. Plug in the values and you get: Density = 10 grams / 5 cubic centimeters. This equals 2 g/cm³. Hence, the density of the object is 2 grams per cubic centimeter.
Learn more about Density here:
#SPJ3
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greater is the keword here
When the pressure at the bottom of a submerged object is less than the pressure at the top of the submerged object a buoyant force is produced?
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-palm
-fingers
-back
-thumb
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Answer: Palm
Explanation: When you have a wire, you must point your thumb in the direction in which the electricity is going, and now you close your palm, in the direction in which you closed your hand is in the direction in which points the magnetic field.
Then the correct option is the first one, the palm points in the direction of the magnetic field.
Answer:
Fingers
Explanation:
The index finger shows the moving charge, while your middle finger shows the magnetic field line.