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1) A softball of mass 0.220kg that is moving with a speed of 8.5m/s collides head-on and elastically with another ball initially at rest. Afterward the incoming softball bounces backward with a speed of 3.2m/s.
a) Calculate the velocity of the target ball after the collision.
b) Calculate the mass of the target ball
2) A 930kg sports car collides into the rear end of a 2500kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 3.1m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is 0.80, calculates the speed of the sports car at impact. What was that speed?
HCl has a dissociation energy of De = 7.41x10^-19 J and a harmonic vibrational frequency of 2900 cm-1. calculate the anharmonicity constant
A resting person requires 14.5-L of per hour to maintain metabolic activities. Such a person breathes in 0.510L of air at approximately 32.0 degrees celsius with each breath. The inhaled air is 20.9 percent while the exhaled air is 16.3percent.
A hiker's trip consists of three segments. Path A is 9km long heading 60.0° north of east. Path B is 6.0km long in a direction due east. Path C is 5.0 km long heading 315° counter clockwise from east.
On a safari, you are spearfishing while wading in a river. You observe a fish gliding by you. If your line of sight to the fish is 64.0° below the horizontal in air, and suppose the spear follows a straight-line path through the air and water afte..
Joe pushes down the length of the handle of a 12.6 kg lawn spreader. What force must Joe apply to the handle
Find the frequency in terahertz of visible light with a wavelength of 463 nm in vacuum
The solar energy coming to the earth by radiation is 1,340 W/m If the sun has a radius of 7.000*10^8m, what is the temperature of the sun
What is the percentage difference between the speeds of red light and blue light in flint glass, What is this percentage difference in diamond
A contestant on "Survivor" is challenged to find buried treasure in a featureless desert. For how long should she run in order to retrieve the treasure
When blue light of wavelength 465 nm illuminates a diffraction grating, it produces a 1st order utmost but no 2nd order maximum.
The focal length of a bi-convex lens is 10 cm. The focal length of a convex-concave thin lens is -20 cm. If placing them in parallel and in close contact, what is the compound focal length
A 2600-pF air-gap capacitor is connected to a 9.0-V battery. If a piece of Pyrex glass (K=5) is placed between the plates
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