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A helium atom (m= 6.6465 x 10^-27 kg) collides elastically with an oxygen atom (m = 2.6560x10^26kg) at rest. After the collision, the helium atom is observed to be moving with a velocity of 6.636x10^6 m/s in a direction at an angle of 84.7 relative to its original direction. The oxygen atom is observed to move at an angle of -40.4 degrees.
(a) Find the speed of the oxygen atom.
(b) Find the speed of the helium atom before the collision.
An electron moves in the positive x-direction a distance of 2.38 m in 2.95 x10-8 s, bounces off a moving proton, and then moves in the opposite direction a distance of 1.63m in 3.53x 10-8 s.
What is the minimum speed need to drive through a banked turn such a car won't slip down the road
A loudspeaker of mass 23m is suspended a distance of h = 1.20 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 2.9m.
A 1100 kg car increases it speed from 40 km/hr to 60 km/hr in 5 seconds. What is the resultant work done on the car
make Use of Stefans law to calculate the total power. What is the magnitude and direction of the force she exerts on you.
A force FT is applied to a cord wrapped around a pulley with moment of inertia I = 0.295 kg · m2 and radius R0 = 33.0 cm, what is the linear speed of a point on its rim 7.0 s later
The box has a mass of 31.0 kg, and the coefficient of kinetic friction between the box and floor is 0.530. The acceleration of gravity is 9.81 m/s2. Illustrate what is the acceleration of the box?
Determine the least value of n for which there is total internal reflection on the vertical surface.
The coeficient of friction on a horizontal cicular track, radius 0.25 km, is 0.7. How fast can a car go around skidding out
drop a rock into a well. You hear the splash 2.40 s after you release the rock from rest. The speed of sound in air at the ambient temperature is 336 m/s. How far below the top of the well is the surface of the water?
A tiny 0.0250 -microgram oil drop containing 15 excess electrons is suspended between to horizontally closely-spaced metal plates, Which plate must be positive, the upper one or the lower one
A pear of 10.2 cm height is placed at a distance of 20.1 m in front of a lens that has a focal length of 26 mm. How large is the image of the pear
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