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!
Scenario: A man begins pushing a box from rest up a ramp angled at 22 degrees from horizontal, exerting a constant force of 500N, but he is opposed by a force of kinetic friction of magnitude 20N.
a. If the length of the ramp is 3.6m and mass of the box is 40kg, what is the total work done by the time the box reaches the top of the ramp? (Hint: don't forget to also account for the work done by the component of gravity acting along the length of the ramp.)
b. What is its speed at the top of the ramp?
c. By the time he reaches the top, the box is now at a height of 1.35m from the ground. What is the box's potential energy?
d. Suppose the man brings the box to a rest once he reaches the top, but it begins to topple off the side of the ramp and fall straight down to the ground. How fast will it be traveling when it hits the ground?
e. If it takes 2.1 x 10^-3 seconds for the box to be stopped by the impact, with what average force will it hit the ground?
In the 1930’s acoustic detection systems able to detect anaircraft at a range of 40.0 km were developed in several countries.The aircraft engines generate a sound intensity level of 95.0 dB ata distance of 10.0 metres from the aircraft, what inten..
Mandy is walking at a speed of 1.37 m/s directly toward one siren and directly away from another siren when they both begin to sound with a frequency of 650 Hz
A pipe springs a leak, which causes a stream of water to rise 8.0meters into the air. What is the minimum pressure within the pipe? Determine the velocity of the stream at the leak. If the hole is 1.0cm in diameter, determine the mass rate of flowthr..
a horizontal 30-cm-long conducting rod is rolling along two conducting rails that are parallel to the x-axis. the rod
Suppose an ideal gas is in a container 3L in volume and allowed to expand by having a piston move. The final volume after the piston moves is 15L. If the gas is at first at a pressure of 1×10^5 Pa and a temperature of 300 K, and temperature is mai..
You're riding a Ferris wheel while sitting on a scale. A Ferris wheel with radius 9.6m has period 34s. The scale reading for a 80kg person at the BOTTOM of the Ferris wheel, assuming a constant rotation rate, is F = 810N. Find the scale reading for a..
A standard baseball has a circumference of approximately 23 cm. If a baseball had the same mass per unit volume as a neutron or a proton, about what would its mass be?
A major-league catcher gloves a 93 mi/h pitch and brings it to rest in 0.14m. If the force exerted by catcher is 803 N, what is the mass of the ball.
A billiard ball is moving in the x direction at 30.0 cm/s and strikes another billiard ball moving in the y direction at 40.0 cm/s. As a result of the collision, the second ball moves at 50.0 cm/s, and the first ball stops. In what final direction do..
a hollow metal sphere has 7cm and 11cm inner and outer radii respectively. the surface charge density on the inside
q1. an object weighs 302 n in the air. when tied to a string connected to a balance and immersed in water it weighs 220
Four point charges have the same magnitude of 2.19 10-12 C and are fixed to the corners of asquare that is 4.20 cm on a side. Three ofthe charges are positive and one is negative. Determine the magnitude of the net electric field that exists at th..
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