What is its rotational kinetic energy-an airplane propeller

Reference no: EM13549789

An airplane propeller is 2.05m in length (from tip to tip) with mass 122 kg and is rotating at 2200 rpm (rev/min) about an axis through its center. You can model the propeller as a slender rod. A) What is its rotational kinetic energy? B) Suppose that, due to weight constraints, you had to reduce the propeller's mass to 75.0 % of its original mass, but you still needed to keep the same size and kinetic energy. What would its angular speed have to be, in rpm?

Reference no: EM13549789

Questions Cloud

Explain the diluted solution contains 3.65 g of ki : To what volume should you dilute 44.0 mL of a 4.60 M KI solution so that 28.5 mL of the diluted solution contains 3.65 g of KI

Determine the angle of reflection from the third surface : Light from a 580-nm monochromatic source is incident upon the surface of fused quartz (n = 1.56) at an angle of 28°. What is the angle of reflection (in degrees) from the surface

What percent of his total kinetic energy is rotational : We can roughly model a gymnastic tumbler as a uniform solid cylinder of mass 70.0kg and diameter 1.00m . A) If this tumbler rolls forward at 0.550 rev/s, how much total kinetic energy does he have? B) What percent of his total kinetic energy is ro..

Determine molarity of sulfuric acid in the obtained solution : A solution of 48.6% H2SO4 by mass has a density of 1.39 g/cm3 at 293 K. A 23.2 cm3 sample of this solution is mixed with enough water to increase the volume of the solution to 99.8 cm3. Find the molarity of sulfuric acid in the obtained solution.

What is its rotational kinetic energy-an airplane propeller : An airplane propeller is 2.05m in length (from tip to tip) with mass 122 kg and is rotating at 2200 rpm (rev/min) about an axis through its center. You can model the propeller as a slender rod.

Calculate the required angular speed : Find the required angular speed, omega, of an ultracentrifuge for the radial acceleration of a point 3.00cm from the axis to equal 4.00×105 g

Explain toluene has a total vapor pressure mmhg : A solution of 75.0 g of benzene (C6H6) and 75.0 g of toluene (C7H8) has a total vapor pressure of 80.9 mmHg at 303 K. Another solution of 100.0 g benzene and 50.0 g toluene has a total vapor pressure of 93.9 mmHg at this temperature.

A grinding wheel in the shape of a solid disk : A grinding wheel in the shape of a solid disk is 0.300m in diameter and has a mass of 2.50kg . The wheel is rotating at 2100rpm about an axis through its center. A) What is its kinetic energy? B) How far would it have to drop in free fall to acquire ..

What will be the pressure if the volume is decreased : A large cylindrical tank contains 0.720 of nitrogen gas at 22.0 and 1.20×105 (absolute pressure). What will be the pressure if the volume is decreased

User Account

All Pages