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 head-butter can accelerate himself from rest to head-butting speed of 8.5 m/s. Since the upper body is involved in a properly executed head-butt, the effective mass of the head is 24kg. Assume the direction of the head moves at positive x direction and assume linear motion.
a) At the moment of impact, what impulse does the head butter produce?
b) If the head butter reaches the butting speed of 8.5 m/s in 0.5 seconds, what power must his muscles produce?
c) If he head-butts an opponent in the face and his head comes to rest in a time of 0.15 seconds, what is the magnitude and direction of the force that the opponent's face experiences?
A uniform plank of length 5.8 m and weight 202 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the Illustrataing). To what distance x can a person who weighs 441 N walk on the overhanging part of t..
A playground merry-go-round has a radius of 4.60 {rm m} and a moment of inertia of 250 kg m^2 and turns with negligible friction about the vertical axle through its center.
The yellow light from a helium discharge tube has a wavelength of 587.50. When this light illuminates a certain diffraction grating it produces a first-order principal maximum at an angle of 1.050.
What is the neutron's kinetic energy and Find the momentum of a 25.0 keV x-ray photon
An inflated rubber balloon is rubbed with the wool cloth until an excess of 1.50 multiplied by 109 electrons is on the balloon. What is the magnitude of the charge on the balloon.
A 9.0×10-24-kg particle is vibrating with simple harmonic motion with a period of 1.9×10-5 s, Find the maximum displacement of the particle
A speedboat starts from rest and accelerates at +2.01 m/s2 for 7.25 s. At the end of this time, Find the total displacement of the boat
A 1.0 kg ball drops vertically onto a floor, hitting with a speed of 28 m/s. It rebounds with an initial speed of 12 m/s. What impulse acts on the ball during the contact
Two people stand 5.20 m apart and 4.00 m away from a large plane mirror in a dark room. At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam straight strikes the other person.
If the mass of the child and sled is 40 {rm kg}, what average force do you need to apply to stop the sled? Use the concepts of impulse and momentum.
A 115 V electric iron draws 5.57 A of current. How much heat is developed per hour, What is the temperature of the bath
Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wavefronts in front of the source compare to those behind it?
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