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Velocity is a speed and its direction. Speed is the quotient of change in distance (D) divided by change in time (T). Therefore calculating speed is dependent on the two variables of D and T, as well as the direction in which the position has changed. In SI unites the measure of the magnitude of velocity uses meters (m) per second(s).
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Do you need to know atomic weight to calculate molarity?
Yes, you definitely need to know the molecular weight of a compound to calculate molarity.
How do I calculate the velocity of an object which hits a stationary object if I know the mass of both objects and the distance the stationary object was moved what else must I know to calculate?
You need to know the coefficient of static friction and the coefficient of moving friction for both objects. The solution involves solving a differential equation so the math is non-trivial.
If a body of unknown mass orbits a body of mass 5 kg at a distance d of 2 m what is the velocity of the orbiting body?
To calculate the velocity we would have to know the mass of the first object because we need it to find the force of gravity between the two bodies to then find out the net distance and time.
To describe velocity you need to know?
Speed is a function of distance and time. For example we refer to 'miles per hour' or 'kilometres per hour' or 'feet per second'' or metres per minute' etc. To determine speed, you need to know the distance travelled and the time it took to travel that distance.
How do you calculate tool life for solid carbide end mills?
i also need do know...
How can you get average velocity?
You can calculate average speed by dividing the total distance travelled by the total time of travel. To go from speed to velocity, you would also need to determine the vector (direction of travel).
Why do you need to calculate velocity instead of speed?
Speed and Velocity are two different things . Velocity- "the rate at which an object changes its position." Speed- "How fast an object is moving". To calculate speed and velocity, you first need to calculate distance and time. Velocity is considered to be a more logical term
How do you calculate height when given velocity?
Given that velocity equals distance over time (v = d/t), you need to also know time elapsed.
Is it true that to calculate acceleraltion you need to know both the final and the initial velocity of an object?
No. That's only one of several possibilities. -- with initial velocity, distance, and time, you can calculate acceleration -- with final velocity, distance, and time, you can calculate acceleration -- with force and mass, you can calculate acceleration -- with initial and final momentum, you can calculate acceleration -- with initial and final kinetic energy, you can calculate acceleration -- with mass, velocity at either end, and kinetic energy at the other end, you can calculate acceleration And I'm sure there are several more that I've missed.
What is the objects acceleration from 0 to 1 second?
Acceleration is the change in velocity over a time period. Since you need to know the change in velocity to calculate acceleration, the question being asked is not answerable.
What should be the initial velocity of a rocket if it to hit a target 1000 km away?
initial velocity would be ZERO before launch. To calculate the velocity you would need to hit that target at that distance you would need to know the mass of the rocket and the angle of launch or trajectory simplifying it
What do you need to know to calculate the frequency of a wave?
wavelength since frequency =hc/lambda h=plancks constant and c=velocity of light
You do not know an objects velocity until you know what?
To know an object's velocity, you need to know its speed and direction. You can measure speed by calculating how long an object takes to arrive at a new position. So by knowing an object's starting position, ending position, and the time it took to get there, you can calculate its average velocity. In a more advanced calculation, you could choose starting and ending positions that are extremely close to one another and calculate "instantaneous velocity." Velocity is known as a "vector value". A vector not only has a length, but a direction. In this case, "length" is the same as "speed", and direction is its change in position.
How do you calculate the maximum rpm of a flywheel before it explodes?
You need to calculate the tangential stresses associated with a rotational velocity and thickness of the flywheel. It will be easier to assume a perfect cylinder and you will also need to know the material properties of your flywheel (poisson's ratio, density).
How do you get velocity using mass and displacement?
You don't. Velocity is not directly related to mass, and you can't calculate velocity just from a displacement measurement. You need some more information.
How do you calculate the area of occupancy assuming that the total area is known?
Knowing the total area is not enough. You need to know the occupancy proportion as well.
How do you calculate the centrifugal acceleration of a bench centrifuge with an average radius of rotation of 125 mm operating at 4000 RPM?
radius and rpm is not enough you need to know changes in speed over time, so you need to measure how long it takes from "0" velocity to reach maximum velocity
