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Dan is moving a duffel bag across a carpeted floor that weighs as much as he does (60kg). He pulls with a force of 200N to get the bag to start moving.
What is the coefficient of static friction between the duffel bag and the carpet?
what is the distance traveled by a beam of light in a time of 2.0
When rebuilding her car's engine, a physics major must exert 250 N of force to insert a dry steel piston into a steel cylinder at a constant velocity. What is the normal force between the piston and cylinder
the block diagram of the control of an electric heating system. the heater is driven from a voltage-controlled power
A rotating object starts from rest at t = 0 s and has aconstant angular acceleration. At a time of t = 7.0 s the object has an angular velocity ofω = 13 rad/s. What isits angular velocity at a time of t = 14 s?
If one of the crystal faces is matted (flat or reflecting) draw a picture and show how the x-rays travel, reflect and diffract on the first 2 layers of the atoms. Indicate the position of the detector in relation to the source and the crystal.
A grasshopper jump 1.00 meter from rest, with an initialvelocity at a 45 degree angle with respect to the horizontal. Find the initial speed of the grass hopper
An iron casting containing a number of cavities weighs 6500.0 N in air and 3500.0 N in water. What is the volume of the cavities in the casting
a girl throws a plastic ring hula hoop to the right with a velocity v0 and a movement that produces a counterclockwise
Two sources emit waves that are in phase with each other. What is the largest wavelength that will give constructive interference at an observation point 161 m from one source
Binoculars denoted as 7 x 50 have a total magnification of 7 times and objective lenses of 50- mm diameter. What is the focal length of the eyepiece
A square loop of wire of edge length a carries current i. Find the magnitude of the magnetic field produced at a point on the central perpendicular axis of the loop and a distance x from its center?
Two billiard balls are initially traveling toward each other at speeds of 1.40 m/s for ball 1 and 4.35 m/s for ball 2. Find the final velocities of both balls
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