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 2.9-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 0.24 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
questiona machine part consists of a thin 40.0 cm long bar with small 1.15 kg masses fastened by screws to its ends.
What is the unknown charge at x = +0.19 m in micro-coulombs? If negative, indicate so with a negative sign, but omit a sign if positive.
A proton moves perpendicular to a uniform magnetic field Barrowbold at a speed of 1.20 107 m/s, Determine the magnitude and direction of the field
a conductor in the shapr of a sperical shell of radii 8 and 11 cm is charged to 20 uC, find the electric potential at each of these radii
A 0.180 kg baseball, travelling 32.0 m/s, strikes catcher's mitt that recoils 13.0 cm in bringing the ball to rest. What was an average force (in newtons) applied by the ball to the mitt.
A car of mass 1.8 x10^3 kg is travelling east at a speed of 28m/s along a horizontal roadway. When its brakes are applied, the car stops in 5.8s. What is the average horizontal force exerted on the car even as it is braking.
A red blood cell typically carries an excess charge of about -2.5 × 10-12 C distributed uniformly over its surface. How many excess electrons does a typical red blood cell have
Using the Lagrangian approach outlined in class (or whatever your favorite method is) derive the coupled dierential equations for a quadruple pendulum with unequal masses and lengths. Solve the equations (either analytically or numerically) and pl..
A vacuum cleaner is plugged into a 120.0-V socket and uses 4.1 A of current in normal operation, Find the coil resistance of the motor
A charge of q = +7.50 µC is located in an electric field. The x and y components of the electric field are Ex = 4.80 103 N/C and Ey = 7.40 103 N/C, respectively. (a) What is the magnitude of the force on the charge? (b) Determine the angle that th..
An electron is moving east in a uniform electric field of 1.55 directed to the west. What is the speed of the electron when it reaches point B, which is a distance of 0.380 east of point A
many masons base the cost for a job on the number of blocks the number of blocks they need to lay. doyel masonry
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