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Q1. A box of books weighing 352 N moves with a constant velocity across the floor when it is pushed with a force of 448 N exerted downward at an angle of 30.7? below the horizontal.
Find μk between box and floor.
Q2. Find out the object position p for the image to be erect and 7 times the size of the object. Focal length is 46 cm
Q3. A 12.0-kg crate slides along a horizontal frictionless surface at a constant speed of 4.0m/s. the crate then slides down a frictionless incline and across a second horizontal surface. What is the speed of crate when it arrives at the lower surface, what is the kinetic energy of the crate as it slides on the lower surface, and what minimum coefficient of kinetic friction is necessary to bring crate to a stop over a distance of 9.0m along the lower surface?
If frame rate increases what happens to the PRF
What is velocity of the boat relative to the shore
Net horizontal force due to rolling friction
Find the magnitude of total displacement of the object
Driving in your car with a constant speed of 13 m/s, you encounter a bump in the road that has a circular cross section, as indicated in the figure. If the radius of curvature of the bump is r = 29 m, find the apparent weight of a 59-kg person in you..
Analyse the instantaneous velocity of the car
A microscope with an eyepiece lens of focal length 1.90 cm and an objective lens of focal length 1.15 cm is used to examine a section of the brain of a sacrificed rat. The distance between the lenses of the instrument is 24.0 cm and final image is vi..
What is tension in each rope
While a force of 6.0 N is applied, pulling the spring to the right, the elongation of the spring is 0.030m from its equilibrium position. What is the force constant of the spring
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer? Imagine the speed of sound in air to be 340 m/s.
Where does package hit the ground relative to the point
What is momentum of the system immediately after the pack is thrown?
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