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Q. A 0.125 kg steel ball with a kinetic energy of 0.25 J rolls along a horizontal track. How high up an inclined track will the ball roll if friction can be ignored?
Q. What is the shortest height a plane mirror must be so that a person who is 1.6 meters tall is able to see his or her whole body? Draw a ray diagram to support your answer.
A 4.70 kg mass causes a vertical spring to stretch 0.850 meters. The spring is after that stretch and extra 0.270 meters and release (as a stopwatch starts) causing the spring and mass to oscillate.
What is speed of the resulting ball of clay
A flight attendant pulls her 72.0 N flight bag a distance of 282 m along a level airport floor at a constant speed. The force she exerts is 33.0 N at an angle of 52.0° above the horizontal.
How fast can this car round a second curve of radius 320m?
Assume air resistance is negligible; from what height (in cm) above the compressed spring was the block dropped.
Find out the precession period of the axis
A 100 arrow is shot vertically from a bow whose efficient spring constant is 500. If the bow is drawn 75 before shooting the arrow, to what height does the arrow rise .
Two forces FA and FB are applied to an object whose mass is 5.43 kg. The larger force is FA. When both forces point due east, the object's acceleration has the magnitude of 1.40 m/s2. Though, as FA points due east and FB points due west, the accelera..
The energy of a simple harmonic oscillator could be doubled by increasing the amplitude by a factor of approximately
Two speakers, one directly behind the other, are each generating a 429-Hz sound wave. What is the smallest separation distance between the speakers that will produce destructive interference at a listener standing in front of them? Take the speed of ..
Calculate the change in the melting point of naphthalene for one atmosphere rise in pressure given that its melting point is 80 C. Latent heat of fusion is 4563 cal/mol and increase in volume on fusion is 18.70 cm3 per mol and 1 calorie = 4.2×10^7..
What is the angular velocity in rad/s . What is the least pressure obtained inside the bottle? What will happen when this pressure is reached.
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