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an eagle swoops down to catch a baby rabbit. luckily for the rabbit , he sees the eagle and runs . an all out chase ensues with the rabbit running east at 5.4 metres per second and the eagle pursuing at 4.4 m/s what is the relative velocity of predators and prey
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What kind of quantity is speed an example of?
speed is a scalar quantity
A force is what kind of quantity?
a vector
Is kinetic energy a scalar quantity?
Yes. Energy is a scalar quantity. Doesn't matter what kind of.
What are the dimensionless quantity?
A dimensionless quantity is one that has only a number, not a unit, and should therefore be the same in any system of units. This often happens when a quantity is the ratio of two measurements of the same kind. For example, the index of refraction can be considered the ratio of two speeds (the speed of light in a vacuum, and the speed of light in the corresponding substance); if both speeds are expressed in meters/second, when taking the ratio, the units disappear, and only a number without units - a "dimensionless" unit - remains. If you convert the speeds in this example to some other unit, for example kilometers per second, both speeds will be a thousand times less; but the ratio will still be the same.
If a plane flies 200m per s into a headwind of 50m per s what is the resultant speed?
This question is a perfect case where it's important to somehow describe the "reference frame" in which a particular speed is measured.For example, if the "200 meters per second" is the plane's AIRspeed, then as long as the fuel holds out,that speed doesn't change, no matter what kind of air the plane flies through.It's clear that this question is interesting only if all the speeds are measured relative to the GROUND.If the plane's groundspeed is 200 meters per second, and it encounters a wind that's blowingacross the ground at 50 meters per second in the opposite direction, then the plane's groundspeedbecomes 150 meters per second.
Which physical quantity is analogous to mass?
With your kind permission, mass is a physical quantity,and doesn't need an analog to be understood.
How do you calculate cubic meter to SQM?
Cubic meters and square meters aren't even the same kind of quantity.
What kind of physical quantity is 12.1 meters per second?
an eagle swoops down to catch a baby rabbit. luckily for the rabbit , he sees the eagle and runs . an all out chase ensues with the rabbit running east at 5.4 metres per second and the eagle pursuing at 4.4 m/s what is the relative velocity of predators and prey
How far will light travel in one second?
That depends on what kind of material it's in. In vacuum ... no material at all ... the speed of light is 299,792,458 meters (186,282 miles) per second. In physical materials, like water, glass, or jello, it's less.
What kind of quantity is speed an example of?
speed is a scalar quantity
What kind of quantity is the magnitude of a vector quantity?
The magnitude of a vector is a scalar.
A force is what kind of quantity?
a vector
How fast do x rays travel through a vacuum?
X-rays are a kind of electromagnetic radiation - similar to light. They travel at the speed of light through a vacuum - about 300 million meters/second.X-rays are a kind of electromagnetic radiation - similar to light. They travel at the speed of light through a vacuum - about 300 million meters/second.X-rays are a kind of electromagnetic radiation - similar to light. They travel at the speed of light through a vacuum - about 300 million meters/second.X-rays are a kind of electromagnetic radiation - similar to light. They travel at the speed of light through a vacuum - about 300 million meters/second.
Is kinetic energy a scalar quantity?
Yes. Energy is a scalar quantity. Doesn't matter what kind of.
If velocity is measured in kilometers per hour and time is measured in hours the unit of acceleration is?
Kilometers/hour2. Note that for this kind of calculation, it is much more common to measure distances in meters, time in seconds, velocity in meters/second, and acceleration in meters/second2.
What are the dimensionless quantity?
A dimensionless quantity is one that has only a number, not a unit, and should therefore be the same in any system of units. This often happens when a quantity is the ratio of two measurements of the same kind. For example, the index of refraction can be considered the ratio of two speeds (the speed of light in a vacuum, and the speed of light in the corresponding substance); if both speeds are expressed in meters/second, when taking the ratio, the units disappear, and only a number without units - a "dimensionless" unit - remains. If you convert the speeds in this example to some other unit, for example kilometers per second, both speeds will be a thousand times less; but the ratio will still be the same.
What meaning of ratio?
The relation which one quantity or magnitude has to another of the same kind. It is expressed by the quotient of the division of the first by the second; thus, the ratio of 3 to 6 is expressed by / or /; of a to b by a/b; or (less commonly) the second term is made the dividend; as, a:b = b/a., Hence, fixed relation of number, quantity, or degree; rate; proportion; as, the ratio of representation in Congress.
