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What does it mean if you get a funky negative almost positive test result it looked negative but there was dye running upwards looking like half of a plus sign and then after 10min full pos?
Wiki User
∙ 13y ago
Home pt tests have a time window. If 10 min is still within the window on your particular test then your result is valid. You can always take a second test to be sure.
Wiki User
∙ 13y ago
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What is the positive slop?
A positive slope goes upwards whereas a negative slope goes down wards
Lever is acted on at two different points by two different forces?
Effort(upwards) and Load(downwards) pivoting on Fulcrum. Assuming positive y axis is upwards and negative downwards.
Why it is taken as negative when an object is thrown upwards against gravitation?
When we throw the object upwards we consider that upward direction as positive. Therefore, the velocity in that direction is positive but the acceleration due to gravity is in the opposite direction and so it is considered negative. But when the ball comes down again after reaching a certain height the velocity is in opposite direction to the earlier one and so the velocity now is negative as a result the acceleration is again negative.
Do plants grow downwards?
No, plants do not always grow downward. Plant roots always grow downward due to positive gravitropism or positive geotropism. Plant shoots always grow upwards due to negative gravitropism or negative geotropism.
When the parabola concave downward and upward?
If the number in front of the x squared is negative, then the parabola will open upwards. The opposite occurs when the number is positive.
How can you tell if a porabola is opening up or down using ax2 plus bx plus c?
If a is positive, then the parabola opens upwards; if negative, then it opens downwards.
Why positive displacement are called positive?
Because it has been decided that the right and upwards directions in a plane are the positive directions and the left and downwards are negative. Originally, the decisions were arbitrary but conventionally agreed (in the same sort of way that North is usually shown at the top of a map). Any displacement in a positive direction is called a positive displacement.
Do bananas grow pointing up or down?
Yes, due to an effect called negative geotropism bananas grow upwards.
If a is positive which way does the parabola open?
Upwards like a letter U
Why Ellingham diagram slopes upwards?
change in free energy is positive
What is positive buoyancy?
It is the force working upwards if it is greater in value than to the gravity force of the floating object that works downwards. if it was less then call it negative buoancy and then the floating object will tend to be unstable (subject to sink)
Is it possible for the instataneous velocity to have been negative at any time in the interval suppose the particle started at the origin x 0?
Yes. Since velocity is a vector it can have negative values when the object is moving in the direction opposite to the direction defined as the positive direction. For example, if an object is thrown vertically upwards and the upward direction is considered the positive direction, then when the object is falling downwards under gravity, its velocity is negative (in the upward direction). Coversely, if the downward direction is defined as the positive direction, then the object has a negative velocity during the first stage of the trajectory.
