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Two particals collide head on elastically. One particle has a mass m and initial speed v, while the second partticleshas a mass of 3m and is initially at rest. Find the speeds of both particles right after the collision.
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.1 kg and the sign has a mass of ms = 16.8 kg. What is the net force the hinge exerts on the beam
Two concentric conducting spheres of radii a = 5 cm and b = 10 cm have a potential difference V = 100 V between them. What is the charge carried by each sphere
The moment arm of the should abductor muscles is approximately 5 cm from the axis of roation of shoulder joint, calculate the horizontal component of the joint reaction force
A vertical solid steel post 25 cm in diameter and 3.50 m long is required to support a load of 7100 kg. You can ignore the weight of the post. What is the strain in the post
The steps in the accounting cycle for a merchandising company are different from the accounting cycle for a service company. Discuss whether or not you agree or disagree. Find out whether or not the measurement of net income.
q1. a planet of mass 6.00 1025 kg is in a circular orbit of radius 2.00 1011 m around a star. the star exerts a force
A car is hauling a 92 kg trailer, to which it is connected by a spring. The spring constant is 2250 N/m. The car accelerates with an acceleration of0.34 m/s2. By how much does the spring stretch?
Like all stars, our sun converts mass into energy which radiates (spherically) in all directions. Calculate the rate at which the sun is losing mass
The filament of a light bulb has a temperature of 2.85E+3 °C and radiates 40 watts of power. The emissivity of the filament is 0.344. Find the surface area of the filament
You have a 1.99-m-long stretched string with a mass of 19.5 g. When you oscillate the string at 440 Hz, Calculate the tension in the string
Two particles each have a mass of 7.00 10-3 kg. One has a charge of +5.0 10-6 C, and the other has a charge of -5.0 10-6 C. How fast is each particle moving when the separation between them is one-half its initial value
When a carbon dioxide molecule attaches to a molecule of hemoglobin, the bond that forms between them immediately starts vibrating. What is the vibration frequency of the bond if the carbon dioxide molecule has speed of 2.42 m/s
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