Question

A propeller is modeled as five identical uniform rods extending radially from its axis. The length...

A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.781 m0.781 m and 2.85 kg2.85 kg, respectively. When the propellor rotates at 597 rpm597 rpm (revolutions per minute), what is its rotational kinetic energy K?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A propeller is modeled as five identical uniform rods extending radially from its axis. The length...
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.803 m and 2.61 kg, respectively. When the propellor rotates at 577 rpm (revolutions per minute), what is its rotational kinetic energy?
An airplane propeller is 2.00 m in length (from tip to tip) with mass 99.0 kg...
An airplane propeller is 2.00 m in length (from tip to tip) with mass 99.0 kg and is rotating at 2900 rpm (rev/min) about an axis through its center. You can model the propeller as a slender rod. What is its rotational kinetic energy? 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...
9.38 An airplane propeller is 1.86 mm in length (from tip to tip) with mass 116...
9.38 An airplane propeller is 1.86 mm in length (from tip to tip) with mass 116 kgkg and is rotating at 2900 rpmrpm (rev/minrev/min) about an axis through its center. You can model the propeller as a slender rod. Part A What is its rotational kinetic energy? Part 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....
A cylindrical rod of uniform density is located with its center at the origin, and its...
A cylindrical rod of uniform density is located with its center at the origin, and its axis along the x axis. It rotates about its center in the xy plane, making one revolution every 0.07 s. The rod has a radius of 0.06 m, length of 0.5 m, and mass of 7 kg. What is the rotational kinetic energy of the rod?
A uniform, 0.0350 kg rod of length 0.450 m rotates in a horizontal plane about a...
A uniform, 0.0350 kg rod of length 0.450 m rotates in a horizontal plane about a fixed axis through its center and perpendicular to the rod. Two small rings, each with mass 0.0200 kg, are mounted so that they can slide without friction along the rod. They are initially held by catches at positions 0.0550 m on each side of the center of the rod, and the system is rotating at 48.0 rev/min. With no other changes in the system,...
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the...
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 3 kg and radius R = 0.24 m. The rods each have mass mr = 1.2 kg and length L = 0.72 m. 1) What is the moment of inertia of each rod about the axis of rotation? kg-m2 2) What is the moment of inertia of the disk about the axis of rotation? kg-m2 3) What...
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the...
A ceiling fan consists of a small cylindrical disk with 5 thin rods coming from the center. The disk has mass md = 2.6 kg and radius R = 0.24 m. The rods each have mass mr = 1.4 kg and length L = 0.78 m. a) What is the moment of inertia of each rod about the axis of rotation? b) What is the moment of inertia of the disk about the axis of rotation? c) What is the...
1. Starting from rest, a CD takes 3.0 s to reach its operating angular velocity of...
1. Starting from rest, a CD takes 3.0 s to reach its operating angular velocity of 450 rpm. The mass of a CD is 17 g and its diameter is 12 cm. You may assume that the small opening at the center of the CD is unimportant when calculating the rotational inertia. Assume that the angular acceleration is constant. a. What is the rotational kinetic energy of the CD after it has completely spun up? b. How high off the...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT