An electrical motor spins at a constant 2695.0 rpm. If the rotor radius is 7.165 cm, what is the linear acceleration of the edge of the rotor?
The question can be solved as follows:
Angular-speed, w = 2695 rpm = 2695*2pi/60 = 282.22
rad/sec,
Radius, r = 7.165 cm = 0.07165 meters,
So, linear-velocity, v = rw = 0.07165*282.22 = 20.22 m/sec,
Hence,
Acceleration, a = v^2/r = (20.22)^2/0.07165 = 5706.78 m/s^2
An electrical motor spins at a constant 2695.0 rpm. If the rotor radius is 7.165 cm,...
3. An electrical motor spins at 1000 rpm and is slowing down at a rate of 10 rad/s (a) If the motor radius is 7.165 cm, what is the linear acceleration of the edgc of the motor? (b) How long will it take to decrease it's angular velocity by 75%
1. An electrical motor spins at a constant 1121 rpm. If the armature radius is 4.8 cm, what is the acceleration of the edge of the rotor? 7.3 m/s2 72.7 m/s2 66350 m/s2 661.5 m/s2 2. A glass flask has a volume of 700 ml at a temperature of 20° C. The flask contains 697 ml of mercury at an equilibrium temperature of 20°C. The temperature is raised until the mercury reaches the 700 ml reference mark. The coefficients of...
Help 3 please explain work
What is your acceleration while sitting in your chair. The latitude of Corvallis is 44.4 degree What is percent difference in the magnitude of your apparent weight due to the rotational motion? How long would a day have to be for the acceleration to be equal in magnitude to 9.8 m/s^2? The wheel in the figure to the right has eight equally spaced spokes and a radius of 30 cm. It is mounted on a...
An ordinary workshop grindstone has a radius of 9.00 cm and rotates at 8000 rpm. (a) Calculate the magnitude of the centripetal acceleration at its edge in m/s2 and convert it to multiples of g. (b) What is the linear speed of a point on its edge? m/s
The CD is 15 cm diameter. If a CD spins at 410 rpm, what is the radical acceleration of a point on the outer rim of the CD?
number 2 and 3 please
2. A disk of radius 10.0 cm spins about an axis through its center at a constant 5.0 rad/s. What is the linear velocity, centripetal and tangential accelerations of a point on its rim? linear velocity = centripetal acceleration = tangential acceleration = 3. Under what conditions is the linear momentum of a system conserved? (Do not state when the initial is equal to the final.)
1. A rotor spins with 71kJ of energy. If plugging is used to stop the motor, how much heat will the rotor have to dissipate (numeric answer only in k-Joules)? 2. A rotor spins with 55kJ of energy. If DC Braking is used to stop the motor, how much heat will the rotor have to dissipate (numeric answer only in k-Joules)? 3. A technician has a 600:5 CT and an ammeter that is scaled 300A for 5A input. If the...
2. A wheel of radius 15 cm accelerates uniformly from 100. rpm to 300. rpm in 8.0 sec. If the wheel is rolling without slipping, how far does the wheel roll in the 8.0 seconds? What is the linear acceleration of the axle of the wheel. What is the total acceleration of the top of the wheel when the wheel is rotating at 100. rpm?
A CD-ROM drive in a computer spins 12 cm diameter disks at 8000 rpm. What is the disk's period (in s)? What is the acceleration in units of g that this speck of dust experiences?
A CD-ROM drive in a computer spins the 12-cm-diameter disks at 9900 rpm. 1) What is a disk's period (in s) ? 2) What is a disk's frequency (in rev/s)? 3) What is the acceleration in units of g that this speck of dust experiences?