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 49.7 kg sled starts at rest on a horizontal road. The coefficient of kinetic friction between the sled and the road is ?k = 0.247. A man pulls the sled a distance 5.08 m along the ground by exerting a constant force of magnitude 430 N on a rope that makes a 28.4o angle above the horizontal. Find:
a) the magnitude of the normal force exerted by the ground on the sled
N
b) the total work done by the man
J
c) the work done by the frictional force on the sled
d) the speed of the sled after it has moved 5.08 m
m/s
e) the rate at which the man is doing work after the sled has moved 5.08 m
W
Two equal point charges of magnitude 4.0 ?C are situated along the x-axis at x1 = -2.0 m, compute the electric potential energy of this system of charges?
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 187 m. Find the magnitude of the total force on the port
A ball of mass 0.60 kg is fired with velocity 140 m/s into the barrel of a spring gun of mass 2.5 kg initially at rest on a frictionless surface. The ball sticks in the barrel at the point of maximum compression of the spring.
Find the difference in decibel levels β1 & β2 of a sound source is related to the ratio of its distances r1 & r2 and find the average power generated by the horn.
q1. your toaster has a power cord with a resistance of 0.016 connected in series with a 10.6 nichrome heating element.
An engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine.
A thin double convex lens is to focus the image of an object onto a screen so that the image is life-sized. What is the total distance L between object and image
Pat (mass 53 kg) and Chris (mass 72 kg) sit in a 26-kg kayak at rest on frictionless water. What's the kayak's speed after Chris catches the pack
Suppose a heat engine takes in 420 J of energy from a hot reservoir and performs 30 J of work in each cycle.
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision
Three 100 ? resistors are connected as shown in the figure. The maximum power that can safely be delivered to any one resistor is 21.5 W. find the total power delivered to the combination of resistors
A long solenoid has 1.56e+3 turns in length of 40.0 cm. What current has to flow through the solenoid in order to generate a magnetic field
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