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The potential energy of a particle moving in the x-y plane is U=a/(x^2+y^2)^1/2, where a is a constant. What is the force on the particle? Draw a diagram showing the particle at the position x,y and the force vector
Having taken a nap under a tree only 20 m from the finish line, Rabbit wakes up to find Turtle 19.5 m beyond him, grinding along at 1/4 m/s. How many seconds will he win or lose by
An X-ray photon with a wavelength of 0.260nm scatters from a free electron at rest. Find the initial momentum of the photon
As a 1240-kg truck travels up a 15.4-m-high hill, the nonconservative forces of friction and the force generated by the engine do work on the truck. determine the change in the truck's kinetic energy
The intersection is 15 m wide. Her car's maximum deceleration is -6.8m/s2, whereas it can accelerate from 43km/h to 70km/h in 8.1 s. Overlook length of her car and her reaction time.
You are driving a car that weighs 1500 kg at 50 km/h, How much force would you need to apply on the wheels of your car through the breaks in order to be able to stop short of hitting the cat
A cylindrical storage tank has a radius of 1.04 m. When filled to a height of 3.64 m, What is the density of the solvent
Illustrate what gravitational force do the two protons in the helium nucleus exert on each other? Their separation is approximately 1.0 fm
A light source emits a beam of photons, each of which has a momentum of 2.3 ?? 10??29 kg??m/s. What is the frequency of the photons
In daily life we see many cases of people who are caught misrepresenting things who soon thereafter are excused and accepted by their contemporaries. How is This different in science.
A banked circular highway curve is designed for traffic moving at 85 km/h. The radius of the curve is 158 m. Traffic is moving along highway at 48 km/h on the rainy day. What is the minimum coefficient of friction between tires and road that would al..
The biochemistry that takes place inside cells depends on various elements, such as sodium, potassium, and calcium, that are dissolved in water as ions, What is the resistance of the ion channel
The normal airflow over the Rocky Mountains is west to east. The air loses much of its moisture content and is chilled as it climbs the western side of the mountains. What is its temperature at the end of the descent
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