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A round wall clock that has been rotated until it is hanging upside down will have a minute hand that points to your right when it is two forty-five True or False?
yea it would
If you double the force you throw a ball the acceleration will double?
No. For a start, you probably don't mean "acceleration" you probably mean "speed" or "velocity." There is a non-linear relationship between force applied on an object and the speed which it will travel through a medium (in this case, air). To double the speed, the amount of force required is more than double, since as the speed of the object increases, the frictional losses similarly increase. Since in this case, the ball will continue to slow immediately after release, the ball is experiencing "acceleration" with a negative value. A In case you are really asking about acceleration the answer is yes. If the ball, in your hand, starts from rest and is accelerated up to some velocity at which it leaves your hand then that acceleration will be double if you throw with twice the force. This will cause the ball to leave your hand with twice the velocity. Once it leaves your hand you are no longer exerting a force on it and the ball will be subject to air resistance which will affect its velocity as described above.
How do you make a water clock?
One way to do it would be to have a bucket of water with a hole in it that is connected to a pulley and weights. As the bucket gets lighter, the weights cause the hand to turn. You would have to vary the dripping to calibrate it.
What units are used to measure mass flow rates?
Let us assume you want the flow rate of water from a pipe such as a garden hose . First, the flow rate must be constant . So don't change the position of the tap handle controlling the outward flow. You need 2 things. A clock with a second hand, and a container which has a known fluid volume, such as a kitchen measuring container (say 1/2Litre capacity. ) Now when the second hand is on 12 quickly let all the water flow into the 1/2 Litre container. When the container is perfectly full to the 1/2Litre marking , very quickly remove the container from the water source and at the same instant, take note of how many seconds and/or minutes it took to fill the container. Suppose it took 45 seconds , then the flow rate measured in 'Litre/ Minute' will be 1/2 Litre in 45/60 minutes. This is of course that same as 0.5 Litre per 0.75 minute which equals 0.5 divided by 0.75 Litre/ minute. Answer is therefore 0.6666 Litre/Minute. Flow rate is commonly measured using the units Litre/Minute . It is also often measured in Gallon/Minute, or Litre/Hour or Gallon/Hour. It depends how powerful the flow is . Flow rate of water out of a Reservoir can be measured in megalitres per minute. Sometimes it is measured in Cubic Feet/Minute. The choice of units is your choice but it will always involve a Volume unit and a Time unit.
What is the difference between handwashing and hand sanitization in maintaining hand hygiene?
The difference between handwashing and hand sanitazation is that hand washing is youre washing youre hand with water and soap and hand sanitazation is using hand sanitazer or using those sanizatized wipies
What are the magnitude of the angular velocity and the angular accelaration of the second hand of a clock?
-- The angular velocity isone revolution/minute = 360 degrees/minute = 6 degrees/second .(2 pi) radians/minute = pi/30 radians per second . -- If the clock is working properly ... not starting, stopping, speeding up, orslowing down ... then the angular acceleration of any of its hands is zero.
What is the angular speed of the minute hand?
60 minutes per hour. Ah, more like 360° per hour.
Do all points along the minute hand of a clock experience the same centripetal acceleration?
no. cause the angle apeed is differet in each point of the minute hand. a=w*w*r. SO, the centripetal acceleration is different.
How do you find the acceleration of a second hand?
The second hand of a clock completes one full rotation in 60 seconds. Given that acceleration is the change in velocity over time, the second hand experiences a constant angular acceleration of 0.1 rad/s^2 as it moves in a circular path.
What is the direction of angular acceleration?
Angular acceleration is a vector quantity that points along the axis of rotation according to the right-hand rule. This means if you curl the fingers of your right hand in the direction of rotation, your thumb points in the direction of angular acceleration.
What is the angular velocity in radians per second of the second hand of a clock?
The angular velocity of the second hand of a clock is pi/30 radians per second.
What is the angular velocity of the minute hand?
The angular velocity of the minute hand can be calculated as 2π radians divided by the time it takes to complete one full revolution, which is 60 minutes. Therefore, the angular velocity of the minute hand is π/30 radians per minute.
What is the minute hand on the clock?
The long hand
Which hand on a clock is the minute hand?
It is the long hand.
Which has more momentum a second hand on a clock or a minute hand on a clock?
the second hand
What motion is a second hand watch moves through a complete circle every minute?
That motion is called angular motion. The angular speed of the second hand is 2pi radians per minute.
What is the time period of the minute hand on a clock?
The time period of a nimute hand on the clock is one minute since it takes a minute for it to complete one oscillation, ie., one complete cycle of the clock.
