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The magnitude of a single force action on a particle of a mass m is given by F = bx2 where b is a constant. The particle starts from rest. After it travels a distance L, estimate what is its kinetic energy and speed.
Assume they are now crossing a snow covered field (coefficient = 0.030, width of field is 75 meter) at a fix speed of 12 m/s, Find how much energy will be dissipated by friction
An 81.2-mH inductor and a6.22-µF capacitor are connected inseries with a generator whose frequency is 373 Hz. The rms voltage across the capacitor is2.38 V. Determine the rms voltage acrossthe inductor.
How much Power does it take to accelerate the 70,000 lb rail car from rest to 10mph in 20 feet with 1ft dia. wheels.
q1. an 825-n sled is pulled a distance of 161 m. the task requires 1.50 104 j of work and is done by pulling on a rope
imagine the current passing through the collider is 1 picoamp. using the information below compute the area of the
A satellite with 2 rectangular solar cells wings with A=60m2, when the wings normally face the sun with an intensity I=1200 W/m2, how much force on the satellite due to the sunlight
What is the electric field of a parallel plate capacitor that has q=+5.53 uC on one plate and q=-5.53 uC on the other plate. The area of each plate is 0.023m
A very long solenoid of circular cross section with radius r= 5.4cm has n= 86.0 turns/cm of wire. An electron is sitting outside the solenoid, at a distance r= 5.90 cm from the solenoid axis. What is the magnitude of the force on the electron whil..
Given two vectors a = 3.1i -3.4j and b =6.7i+8.7j, What is the magnitude (in m) of the vector a, Find the direction (in ° = deg) of the vector a, Find the magnitude of the vector b
your physics teacher is holding a spinning wheel with angular momentum of 8 units upward while standing on a stationary
A car of mass 1450 kg traveling at 26 m/s is at the foot of a hill that rises 140 m in 2.4 km. Find the average power delivered by the car's engine
A 15 kg box is pulled horizontally by a 20 N force on a frictionless surface. What is the change in kinetic energy of the box
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