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The initial height of the ball is 60.0m and has a potential energy and initial pe of 1176.00 After the ball bounced it had a height of 15.0m and PE of 294.00. What was the maximum speed after it hit bottom?
A standing observer perceives a train whistle to have a frequency of 300 Hz. what is the frequency of the sound waves emitted from the train
A diving board length = 5.60 that weighs 210 is supported by two pillars. One pillar is at the left end of the diving board; other is distance = 1.60 away. Find out the magnitude of force exerted by the left pillar while an 85.0 diver stands at th..
The hunter uses a small powerboat that moves at a maximum speed of 9.5 km/h with respect to the water. Illustrate what is the minimum time necessary for crossing?
A concave shaving mirror has a radius of curvature of 40.1 cm. It is positioned so that the (upright) image of a man's face is 2.7 times the size of his face. How far is the mirror from the man's face?
Calculate the period of a satellite orbiting the Moon, 130km above the Moon's surface. Ignore effects of the Earth
a powerful laser pulse cannon fires that is firing lasers. each laser pulse lasts 6.66 micro seconds. what is the average intensity of the laser
A mass of 400 grams hangs from the rim of a wheel of radius 15cm. When released from rest, the mass falls 2 m in 6.5 sec. Find the moment of inertia of the wheel
An initially motionless test car is accelerated uniformly to 1.20 × 102 km/h in 8.68 seconds before striking a simulated deer. The car is in contact with the faux fawn for 0.455 seconds, after which the car is measured to be traveling at 65.5 km/h..
An archer shoots an arrow horizontally at a target 17m away. The arrow is aimed straight at the center of the target, but it hits 59cm lower.
Two charges, qA and qB, are divided by a distance, d, and exert a force, F, on each other. Analyze Coulomb's law and answer the following questions.
The average kinetic energy per molecule of an ideal gas with originally Ni=1000 molecules is Kavg=500J. What is the final number of molecules Nf after this process
Object A is metallic and electrically neutral, Object B is identical to object A and is also electrically neutral, It is charged by induction so that it acquires a charge of +3.18E-6 C
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