At the local discotheque the speed dial controlling the 6 kg solid and uniform disco ball...
At the local discotheque the speed dial controlling the 6 kg solid and uniform disco ball of diameter 35 cm malfunctioned causing the disco ball to accelerate from 9 revolutions per minute up to 56 revolutions per minute. Calculate the change in kinetic energy. Answer in J
Homework Answers
Add Answer to:
At the local discotheque the speed dial controlling the 6 kg
solid and uniform disco ball...
A 1.3-kg 16-cm-diameter solid sphere is rotating about its diameter at 66 rev/min. (a) What is...
A 1.3-kg 16-cm-diameter solid sphere is rotating about its diameter at 66 rev/min. (a) What is its kinetic energy? =J (b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball? =rev/min
A 1.6-kg 18-cm-diameter solid sphere is rotating about its diameter at 77 rev/min. (a) What is...
A 1.6-kg 18-cm-diameter solid sphere is rotating about its diameter at 77 rev/min. (a) What is its kinetic energy? 218.4 Incorrect: Your answer is incorrect. J (b) If an additional 5.0 mJ of energy are supplied to the rotational energy, what is the new angular speed of the ball? rev/min
A uniform solid cylinder of a radius of 10 cm and a mass of 3.0 kg...
A uniform solid cylinder of a radius of 10 cm and a mass of 3.0 kg is rotating about its center with an angular speed of 33.4 rpm. What is its kinetic energy?
The assembly shown in the figure below consists of a thin rod of length l = 23.9 cm and mass m = 1.20 kg with a solid ball of diameter d = 10.0 cm and mass M = 2.00 kg attached to its top.
The assembly shown in the figure below consists of a thin rod of length l = 23.9 cm and mass m = 1.20 kg with a solid ball of diameter d = 10.0 cm and mass M = 2.00 kg attached to its top. The assembly is free to pivot about a frictionless axle through the bottom of the rod. The assembly is initially vertical and at rest when it starts to rotate clockwise. (a) After the combination rotates through 90...
A grinding wheel is in the form of uniform solid disk of radius 7.00 cm and...
A grinding wheel is in the form of uniform solid disk of radius 7.00 cm and mass 2.00 kg (I=1/2(mr^2)). It starts from rest and rotates with constant angular acceleration of 12.0 rad/sec^2. A) How long does the wheel take to reach its final operating speed of 1200 rev/min? B) Through how many revolutions does it turn while accelerating? C) calculate the rotational kinetic energy of the wheel at its operating speed.
A frictionless pulley has the shape of a uniform solid disk of mass 2.20 kg and...
A frictionless pulley has the shape of a uniform solid disk of
mass 2.20 kg and radius 10 cm. A 1.90 kg stone is attached to a
very light wire that is wrapped around the rim of the pulley (the
figure (Figure 1) ), and the system is released from rest.
a)How far must the stone fall so that the pulley has 6.30 J of
kinetic energy?
h =_____________m
b)What percent of the total kinetic energy does the pulley
have?...
A frictionless pulley has the shape of a uniform solid disk of mass 2.20 kg and...
A frictionless pulley has the shape of a uniform solid disk of mass 2.20 kg and radius 10 cm. A 1.10 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (the figure (Figure 1)), and the system is released from rest. a) How far must the stone fall so that the pulley has 4.60 J of kinetic energy? h = ... meters b) What percent of the total kinetic energy does...
i need help with all parts of the question Question Part 1 2 The flywheel in...
i need help with all parts of the question Question Part 1 2 The flywheel in a car is a solid cylinder with a mass of 95 kg, a radius of 10 cm, and a length of 5.0 cm. It is rotating about an axis through its center (Table 11.2 (c)) at 5000 rpm (revolutions per minute). (a) What is the kinetic energy of the cylinder? J (b) Suppose that all this rotational kinetic energy could be transformed into translational...
A solid ball with m=1.6 kg and radius 3.8 cm rolls a distance 9.2 m down...
A solid ball with m=1.6 kg and radius 3.8 cm rolls a distance 9.2 m down a ramp that is inclined by an angle 22.2° with respect to the horizontal. At the bottom of the ramp, what is its rotational kinetic energy? The answer is 15.59 J but i'm unsure how to arrive at this.
P11.15.1 A solid uniform cylinder of mass 4.2 kg and radius 0.058 m rolls without (7.00)...
P11.15.1 A solid uniform cylinder of mass 4.2 kg and radius 0.058 m rolls without (7.00) slipping at a speed of 0.72 m/s. What is the cylinder's total kinetic energy? (0/5 submissions used) J Save P11.15.1 Submit P11.15.1
A frictionless pulley has the shape of a uniform solid disk of
mass 2.20 kg and radius 10 cm. A 1.90 kg stone is attached to a
very light wire that is wrapped around the rim of the pulley (the
figure (Figure 1) ), and the system is released from rest.
a)How far must the stone fall so that the pulley has 6.30 J of
kinetic energy?
h =_____________m
b)What percent of the total kinetic energy does the pulley
have?...
P11.15.1 A solid uniform cylinder of mass 4.2 kg and radius 0.058 m rolls without (7.00) slipping at a speed of 0.72 m/s. What is the cylinder's total kinetic energy? (0/5 submissions used) J Save P11.15.1 Submit P11.15.1
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago