Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A student sits on a rotating stool holding two 3.9-kg objects. When his arms are extended horizontally, the objects are 1.0 m from the axis of rotation and he rotates with an angular speed of 0.75 rad/s. The moment of inertia of the student plus stool is 3.0 kg · m2 and is assumed to be constant. The student then pulls in the objects horizontally to 0.44 m from the rotation axis.
(a) Find the new angular speed of the student.___________rad/s
(b) Find the kinetic energy of the student before and after the objects are pulled in.
before________J
after_________J
A hydrogen atom is in the ground state. It absorbs energy and makes a transition to the n = 6 excited state. What are the photon wavelengths of transitions
An airplane is flying in a horizontal circle at a speed of 520 km/h. If the wings of the plane are tilted 34° to the horizontal, what is the radius of the circle (in m) in which the plane is flying? Assume that the required force is provided entir..
Illustrate what is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer.
A pilot claims to have seen a UFO moving initially at a speed of about 373 m/s in an easterly direction and then, Compute the UFO's average acceleration during the turn
In Anchorage, collisions of a vehicle with a moose are so common that they are referred to with the abbreviation MVC. What percent of the original kinetic energy is lost in the collision to other forms of energy
What is a limiting angle of resolution
An object located 32.1 cm in front of a lens forms an image on a screen 9.5 cm behind the lens. determine the magnification of the object
A 47.0 g golf ball is driven from the tee with an initial speed of 60.0 m/s and rises to a height of 25.2 m, Neglect air resistance and determine the kinetic energy of the ball at its highest point
What is the magnitude of the apparent weight of a 66 astronaut 4500 from the center of Earth's Moon in a space vehicle moving at constant velocity?
The equations for free fall at the surface of Mars and Jupiter (s in meters, t in seconds) are Mars, s = 1.86t^2; Jupiter, s = 11.44t^2. How long would it take an object falling from rest to reach a velocity of 100 km/hr on each planet?
A nonconducting disk of radius a lies in the z = 0 plane with its center at the origin. The disk is uniformly charged and has a total charge Q. Find Ez on the z axis at the following positions.
A small grinding wheel has a moment of inertia of 4.0×10-5 kg m^2. What net torque must be applied to the wheel for its angular acceleration to be 160 rad s^2.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd