If the measured power is 18.5 watt, rotational speed is 245 rpm, radius R of inner...

If the measured power is 18.5 watt, rotational speed is 245 rpm, radius R of inner cylinder is 72.5 mm, thickness of liquid is h1 = h2 = 2.35 mm and the height of the fluid is y = 335 mm, determine the viscosity of the viscometer fluid.

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samet mamat answered 1 year ago

A uniform solid sphere with Radius R has KE (rotational) at an angular speed of w...

A uniform solid sphere with Radius R has KE (rotational) at an angular speed of w when spinning about an axis through its center. A uniform thin-walled hollow shell of radius 2R has 1/3 KE (rotational) at an angular speed of w when spinning about an axis through its center. If m=M for solid sphere, whats the mass of the hollow sphere?

a- If the radius r of a circle is measured to be r  0.325 +\-...

a- If the radius r of a circle is measured to be r  0.325 +\- 0.001 m, then calculate the area of the circle A =  3.14r 2 , as well as the uncertainty in the area. b-Explain the difference between precision and accuracy. c-Do systematic errors affect precision or accuracy? Do random errors affect precision or accuracy?

1. If the radius r of a circle is measured to be r  0.325 +\-...

1. If the radius r of a circle is measured to be r  0.325 +\- 0.001 m, then calculate the area of the circle A =3.14 r^2, as well as the uncertainty in the area. 2. Explain the difference between precision and accuracy. 3. Do systematic errors affect precision or accuracy? Do random errors affect precision or accuracy?

A cylindrical capacitor is made of a conducting inner cylinder of radius R and a conducting...

A cylindrical capacitor is made of a conducting inner cylinder of radius R and a conducting shell of inner radius 2R and outer radius 3R. The space in between the inner cylinder and the shell is filled with a uniform dielectric material of dielectric constant k. The inner cylinder and the cylindrical shell carry equal and opposite charges but with charge per unit area of ? on the inner cylinder and -?′on the shell. (a) Find the electric field as...

Suppose a star with mass 30 MSUN and radius 50RSUN. It is rotating at equatorial rotational speed...

Suppose a star with mass 30 MSUN and radius 50RSUN. It is rotating at equatorial rotational speed of 200 km s-1. For simplicity, consider the star as a rigid body with constant density. Suddenly, this star loses 10% of its mass due to a strong stellar wind, and then readjusts its radius to be 50 RSUN again. Estimate the equatorial rotation speed after the wind and readjustment for the following cases. (a) The wind is only from the polar region. (b)...

A hydroelectric power station is required to generate a total of 4.2 MW from a number of single-jet Pelton wheel turbines each operating at the same rotational speed of 650 rpm,

A hydroelectric power station is required to generate a total of 4.2 MW from a number of single-jet Pelton wheel turbines each operating at the same rotational speed of 650 rpm, at the same power output and at a power specific speed of 1.0 rev. The nozzle efficiency ηN of each turbine can be assumed to be 0.98, the overall efficiency ηo is assumed to be 0.88, and the blades speed to jet speed ratio v is to be 0.47....

A high-speed flywheel in a motor is spinning at 500 rpm when a power failure suddenly...

A high-speed flywheel in a motor is spinning at 500 rpm when a power failure suddenly occurs. The flywheel has mass 37.0 kg and diameter 73.0 cm. The power is off for 35.0 s and during this time the flywheel slows due to friction in its axle bearings. During the time the power is off, the flywheel makes 150 complete revolutions. A) At what rate is the flywheel spinning when the power comes back on? B) How long after the...

A wheel of radius 8 inches is rotating 15°/s. What is the linear speed v, the angular speed in RPM, and the angular speed in rad/s?

2 kW of power will be trasnmitted via chain-sprocket system. Rotational speed of input shaft is...

2 kW of power will be trasnmitted via chain-sprocket system. Rotational speed of input shaft is 20 rpm. Required approximate rotational speed of input shaft is 20 rpm. Required approximate rotational speed for the out shaft is 7 rpm. Approximate distance between center lines of input and output shafts should be 900 mm. This chain-sprocket system is used for an elevator and it is asked to use single or multiple DIN 8187 chain with 31.75 mm pitch. a) Calculate number...

2.2 kW of power will be trasnmitted via chain-sprocket system. Rotational speed of input shaft is...

2.2 kW of power will be trasnmitted via chain-sprocket system. Rotational speed of input shaft is 20 rpm. Required approximate rotational speed of input shaft is 20 rpm. Required approximate rotational speed for the out shaft is 7 rpm. Approximate distance between center lines of input and output shafts should be 900 mm. This chain-sprocket system is used for an elevator and it is asked to use single or multiple DIN 8187 chain with 31.75 mm pitch. a) Calculate number...

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