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!
Question1
A 115kg mail bag hangs by a vertical rope 4.0 long. A postal worker then displaces bag to a position 2.2m sideways from its original position, always keeping the rope taut.
1. What horizontal force is required to hold bag in the new position?
2. As the bag is moved to this position, how much work is completed by the rope?
3. As the bag is moved to this position, how much work is completed by the worker?
Question2
A box of books weighing 351 N moves with a constant velocity across floor as it is pushed with a force of 416 N exerted downward at an angle of 38.7? below the horizontal.
Find out μk between box and floor.
A 5.5kg block is initially at rest on a frictionless horizontal surface. It is pulled with constant horizontal force of 3.8 newtons. How far does it move in this time
The energy of a simple harmonic oscillator could be doubled by increasing the amplitude by a factor of approximately
The sound level measured in a room by a person watching a movie on a home theater system varies from 60 dB, Approximately how many times louder is the latter sound?
A parachutist descending at the speed of 25 m/s loses a shoe at an altitude of 50 m. (Assume the positive direction is upward.)
An electric dipole consists of charges +2e and -2e separated by 0.78nm. It is in an electric field of strength 3.4 x 106 N/C. Calculate the magnitude of the torque on the dipole
A listener increases his distance from a sound source by a factor of 5.56. what is the change in the sound intensity level in dB
A plane accelerates from rest at a constant rate of 5.00m/s2 along a runway that is 1800m long. What is the time tTO needed to take off
A skateboarder shoots off a ramp with a velocity of 6.9 m/s, directed at an angle of 56 ° above the horizontal. The end of the ramp is 1.1 m above the ground. how far is this point horizontally from the end of the ramp
An open train car, with a mass of 2150 kg, coasts along a horizontal track at the speed 2.43 m/s. What is the car's speed after the loading is completed
In 1986 a gargantuan iceberg broke away from the Ross Ice Shelf in Antarctica. It was approximately a rectangle 160 km long, What is the mass of this iceberg, given that the density of ice is 917 kg/m3
A refrigerator has a 1000 W compressor, but the compressor runs only 20% of the time, If electricity costs $0.10/kWh, what is the monthly (30 day) cost of running the refrigerator
A coil of four circular loops of radius 3.0cm carries a current of 5.0A clockwise, What is the magnetic field at the center of the coil
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