The 1880-S Morgan is very common. Average retail value of an MS-62 coin is $50.00. If by 'RPM" you mean repunched mintmark, this specific die variety is also very common for this date/mint issue Morgan. It would have little extra value.
To calculate burst RPM (rotations per minute), you need to know the burst speed of the machine in revolutions per second. You can then multiply this value by 60 to convert it to RPM. The formula for calculating burst RPM is: Burst RPM = Burst speed (revolutions per second) * 60.
Let it Be ,apple records 45
To convert RPM to rad/s, multiply the RPM value by 2π/60. This is because one revolution is equal to 2π radians, and there are 60 seconds in a minute. So the formula is: angular velocity in rad/s = (RPM) * (2π/60).
The RPM (revolutions per minute) of a 1 horsepower (hp) motor can vary depending on the motor type and design. For example, standard induction motors typically operate at either 1,750 RPM or 3,450 RPM for 60 Hz applications, but this can differ for specialized motors or different power supplies. It's important to check the motor's specifications for the exact RPM value.
One sold on eBay for about $30.00 recently
The value of a 78 rpm record typically depends on factors like rarity, condition, and demand from collectors. Sets of records, such as the "Sounds of Time," can vary in value from a few dollars to potentially hundreds of dollars, especially if they are in good condition and sought after by collectors. It's always best to research specific titles and conditions to get a more accurate estimate of value.
it is unfortunately worth only a dollar or two... there is currently an unsold copy in great shape on eBay for $4.95 that remains unsold...
Horsepower (hp) and revolutions per minute (rpm) are related but not directly convertible without additional information, such as the torque of the motor. Specifically, 1 horsepower is equivalent to 5252 foot-pounds per minute when torque is expressed in foot-pounds. To find the rpm for a 2 hp motor, you would need to know the torque; the formula is: hp = (torque in lb-ft × rpm) / 5252. Thus, without the torque value, you cannot directly calculate rpm from horsepower.
I bet alot.. I want one!
Priceless...
It depends on the radius of the centrifuge. a=R x (angular frequency)^2 The units of angular frequency are radians/second, you want rpm If the rpm is 1 rpm the the angular frequency is 2pi *60 radians/sec
what are static RPM ?