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How do you determine a work done is positive sign or negative sign?
If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign.
Is a negative a positive is what?
A Negative plus a positive = a negative because negative and a positive cannot work together Negative + Negative= Positive Positive + Positive = Positive when your dealing with numbers such as : -2 + 2 would equal a negative 4 -2 +-2 would equal a positive 4
Does gravity do positive or negative work on falling objectexplain?
It does positive work. There's 2 ways to look at this: 1) This one's a chemistry way. When work is done on a system by the surroundings, the work is positive. When the system itself is doing work on the surroundings, this is negative work. Just think of it in terms of the system. It gains energy when something does work to it and loses energy when it works on something else. Based on this, do you think it's positive or negative work? 2) This one's a physics way. W = Fd cos (theta). In this equation, W = work, F = a force, d = displacement, and theta = angle between the force and the displacement. So, let's take the example of a falling object. As it falls, the force of gravity is exerting a force towards the ground. The object is moving towards the ground also. Since both the directions are the same, theta is 0 and work is + (cos of angle 0 is +1). When the object is moving upward while gravity is acting on it, exerting a downward force, the angle between them is 180 degrees. At 180 degrees, cos is -1. Work done by gravity is negative in this case. Either ways, positive work is being done by gravity on the falling object.
What is 63 divided by negative 7?
9
A positive and negative comment at the same time?
Today is not an unpleasant day.You'll be lucky if you can get this man to work for you.
How do you determine a work done is positive sign or negative sign?
If work is done on the system then it has a negative sign. If work is done by the system then it has a positive sign.
Is the work done by the system is considered as positive or on the system is considered as positive?
In thermodynamics, work done by the system is considered positive. Work done on the system is considered negative.
When do you say that the work done is positive or negative?
Work done is considered positive when the force applied and the displacement of the object are in the same direction, causing movement in that direction. On the other hand, work done is considered negative when the force applied and the displacement are in opposite directions, resulting in work being done against the direction of the force.
When work is positive and when is negative?
when work is positive and when playing is negative
What is the difference between negative work and zero work and positive work done?
If the angle between the displacement and force applied is less than a right angle, then it is Positive Work done. If the angle between the displacement and the force applied is greater than a right angle then it is Negative Work done. If the displacement and force are at right angles, or either is zero, then it is Zero Work done.
Can work positive or Negative in physics how?
Yes Work can be positive or Negative.
Does the work-kinetic energy theorem hold for both positive and negative work?
Yes, the work-kinetic energy theorem holds for both positive and negative work. Positive work increases the kinetic energy of an object, while negative work decreases it. The theorem states that the net work done on an object is equal to the change in its kinetic energy.
Should positive go to positive in a circuit?
No, this will not work. Postitive to Negative/Negative to Positive will work.
What are positive and negative work ethics?
what is positive and negative
What can be said about a situation in which work done is negative?
the formula F.S cos angle is used (the dot product) so if angle is 0,cos angle=1 hence work done is positive and maximum if angle is 90 so cos 90 is 0 hence work done is minimum if work done is negative the angle is 180 The work done by friction is always negative (opposite the force) Since work is force x displacement, a negative value for work could mean that the displacent was negative
When the force acting on an objects points at least partially in the blank direction of the motion the work done is considered to be what?
When the force acting on an object points at least partially in the direction of motion, the work done is considered to be positive. This is because the force is helping to move the object in the same direction as its motion, resulting in a positive work output.
Can work done by a force be negative?
Yes. If force is negative, then work will be negative.
