A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 18.00
Question:
A steel bicycle wheel (without the rubber tire) is rotating freely with an angular speed of 18.00 rad/s. The temperature of the wheel changes from -100.0 to +300.0 oC. No net external torque acts on the wheel, and the mass of the spokes is negligible.
(a) Does the angular speed increase or decrease as the wheel heats up? Why?
(b) What is the angular speed at the higher temperature?
Step by Step Answer:
a As the wheel heats up it will expand Its radius and therefore its moment of inertia will increase ...View the full answer
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Modern Physics questions
-
A stationary platform which can rotate freely about a vertical axis (Fig. 1.72) supports a motor M and a balance weight N. The moment of inertia of the platform with the motor and the balance weight...
-
A semicircular panel of radius r is attached with hinges to a circular plate of radius r and initially held in the vertical position as shown. The plate and the panel are made of the same material...
-
Arriving at the baggage claim area in a small airport, Alan (mass m) discovers a large turntable (radius R and moment of inertia I) that is spinning out of control. Not wanting to pass up an...
-
Why are services important? Why is manufacturing important? What are nonmanufactured goods?
-
Visit Nikes Web site at nikeid.nike.com/nikeid/index.jsp and design your own shoe. Print out your shoe design and bring it to class. Do you think the price is appropriate for the value received from...
-
For the following exercises, prove or disprove the identity. tan x sec x sin(-x) = cos x
-
State the working principle of a closed cycle gas turbine. Why is it named as constant pressure turbine?
-
A double pendulum is attached to a cart of mass 2m that moves without friction on a horizontal surface. See Figure 7-D each pendulum has length b and mass bob m. Find the equations of motion.
-
Required: Prepare a process costing work sheet. Organic Fertilizer Inc manufactures fertilizer using a three stage composting system which improves the nutrient content in the soils and provide...
-
PBS news Hour reported that 39.4% of Americans between the ages of 25 and 64 have at least a two-year college degree (PBS website, December 15, 2014). Assume that 50 Americans between the ages of 25...
-
An insulated container is partly filled with oil. The lid of the container is removed, 0.125 kg of water heated to 90.0 oC is poured in, and the lid is replaced. As the water and the oil reach...
-
The figure shows a swimming pool on a sunny day. If the water absorbs 2.00 Ã 109 J of heat from the sun, what is the change in volume of the water?
-
How many right triangles have a hypotenuse that measures 4x + 5 inches and legs that measure 3x + 13 inches and x inches? What are the dimensions of the triangle(s)?
-
What country/region was the largest market for American kerosene in the 1870s and 1880s, spurred on by industrialization, urbanization, and economic growth?
-
Find the Jacobian of the following transformations sending (u, v, w) to (x, y, z) and (s, t) to (x, y): a. x=uv+w, y=u+vw, z=ww+v b. tes, y = se.
-
A comparison and contrast of the basic assumptions of conflict theories: Marxist theory, power elite theory, and interest group (pluralist) theory. An explanation of how these theories apply to...
-
When the price of paperback books falls from $7.00 to $6.50, the quantity demanded rises from 100 to 150. a. Use the arc formula for price elasticity of demand to determine the price elasticity of...
-
Explain how demand and supply interact to have an equilibrium price. Using a relevant diagram, show how the price of a diamond is much higher than the price of drinking water.
-
Rous sarcoma virus (RSV) carries an oncogene called Src, which encodes a continuously active protein tyrosine kinase that leads to unchecked cell proliferation. Normally, Src carries an attached...
-
Michelles trust is subject to 3.8% surtax on the lesser of the trusts net investment income or the excess of the trusts adjusted gross income over the $12,400 threshold (the highest trust tax rate)....
-
An ideal gas is taken through a complete cycle in three steps: adiabatic expansion with work equal to 125 J, isothermal contraction at 325 K, and increase in pressure at constant volume. (a) Draw a...
-
(a) What is the volume occupied by 1.00 mol of an ideal gas at standard conditionsthat is, 1.00 atm (= 1.01 x 105 Pa) and 273 K? (b) Show that the number of molecules per cubic centimeter (the...
-
Find the pressure increase in the fluid in a syringe when a nurse applies a force of 42 N to the syringe's circular piston, which has a radius of 1.1 cm.
-
4 An electron emitter will be used to make a beam of electrons for a microscope. Electrons are emitted from a hot wire and accelerated between an anode and cathode plate which can be approximated to...
-
1. A current of 5.83 A is used to produce the microwave radiation in a microwave oven. If the voltage across the oven is 120V, how much does it cost to run the microwave for 12 minutes if electrical...
-
You've seen the following returns on a stock over the past five years: 6 percent, 12 percent, 20 percent, -6 percent, and 11 percent. Suppose the average inflation rate over this time period was 2.5...
Study smarter with the SolutionInn App