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In the path shown below, the locations of a car driving around a track are shown at EQUAL time intervals where ?t = 20 s. The car starts with speed 40 m/s at x0 and uniformly slows down to 20 m/s from x0 to x2. The car then travels at a constant speed from x2 to x4. The corner at x3 has a radius of r = 40 m. Assume the car continues at a constant velocity after point x4. Calculate the MAGNITUDE (no plus or minus signs) of the accelerations a0 to a4 at the points x0 to x4 around the path.
An automobile having a mass of 1,000 kg is driven into a brick wall in a safety test. The bumper behaves like a spring with constant 5.85 106 N/m, What was the speed of the car before impact
For about 10 years after the French revolution, the French government attempted to base measures of time on multiples of ten: One week consisted of 10 days, find the ratio of the French decimal week to the standard week
Assume that ?1(x,t) and ?2(x,t) are solutions of the one-dimensional time dependent Schrodinger’s wave equation. (a) Show that ?1 + ?2 is a solution. (b) Is ?1 * ?2 is a solution of the Schrodinger equation in general? Why or why not?
A small plastic sphere with a charge of -5.0 nC is near another small plastic sphere with a charge of -15 nC, what is the distance between the spheres
The 2.45kg physics book shown is connected by a string to a 537.0g coffee cup. What is the acceleration of the book if the slope is inclined at 22.5deg
If a 100 kilogram person was standing in the elevator and it accelerated downward at 3 m/s^2. What is the force acting on the person feet
An airplane flies between two points on the ground that are 500 km apart. The destination is directly north of the origination of the flight. The plane flies with an air speed of 120 m/s.
A rock is thrown on earth with an initial horizontal velocity and it hits the ground at x meters away from the point where the stone is thrown. how much larger is the new planet's mass relative to earth
An atomic nucleus of mass 288 u moving at 405m/s emits an alpha particle of mass 4.0 u in the direction of its velocity. If the remaining nucleus slows to 360m/s, what velocity does the alpha particle have when it is emitted.
The tangential speed of a particle on a rotating wheel is 3.5m/s. how long will the particle take to make one revolution
A 750 N box moves at a constant velocity on a floor with a coefficient of static friction = 0.800, What horizontal force is required to keep the box moving
A line in the x-ray spectrum of gold has a wavelength of 18.5 pm(=18.5x10^-12 m) The emitted x-ray photons corresponds to a transition of the gold atom between two stationary states, the upper one of which has the energy -13.7 keV. What is the ene..
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