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an object located at the origin and having a mass M explodes into three pieces having masses M/4, M/3, and 5M/12. The pieces scatter on a horizontal frictionless xy-plane. The piece with the mass M/4 flies away with velocity 5.0 m/s at 37deg above the x-axis. The piece with mass M/3 has velocity 4.0 m/s directed at an angle of 45deg above the x-axis.
a) what are the velocity components of the third piece?
b) describe the motion of the CM of the system after the explosion?
A charged sphere of radius 10 cm has a total charge of 5 C. Calculate the potential at the surface of the sphere
A hunter aims directly at a target (on the same level) 84.2m. If the bullet leaves the gun at a speed of 193 m/s, by how much will it miss the target.
The concepts in this problem are similar to those in Multiple-Concept Example 4, What is the tension in the cable? How much work is done by the tension in the cable
A 150 pF capacitor is charged to a potential difference of 64 V, and the charging battery is disconnected. what is the capacitance of this second capacitor
Two bicycle tires are set rolling with the same initial speed of 3.30m/s along a long, straight road, What is the coefficient of rolling friction for the tire under low pressure
What is the friction force that acts on the bear?
A child slides down a slide with the 29 degree incline, and at the bottom her speed is precisely half of what it would have been if the slide had been frictionless. Compute the coefficient of sliding between the child and the slide.
An object is placed in front of a 75 mm lens. The image is real, and has a magnification of magnitude |m|=3. How far away is the object from the lens
Find out the maximum altitude reached by the rocket.
A lonely party balloon with a volume of 2.40 L and containing 0.100 mol of air is left behind to drift in the temporarily uninhabited, Calculate the entropy change of the air during the expansion
A person on a rocket traveling at 0.50c (with respect to the Earth) observes a meteor come from behind and pass her at a speed she measures as 0.50c
Heather and Mathew walked eastward with a speed of 9.8 m/s. If it takes those 34 min. to walk to the store, how far have they walked.
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