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A pendulum of length l is mounted in a rocket. (Use the following as necessary: l and g. Enter only the word ?none? if the pendulum does not oscillate.)
(a) What is the pendulum?s period if the rocket is at rest on its launch pad?
(b) What is its period if the rocket is accelerating upward with acceleration a = 4/7 g?
(c) What is its period if the rocket is accelerating downward with acceleration a = 4/7 g?
(d) What is its period if the rocket is in free fall?
Adjacent antinodes of a standing wave on a string are 16.0 cm apart. How far apart are the adjacent nodes
reviews the concepts that are involved in this problem. A child is twirling a 0.0211-kg ball on a string in a horizontal circle whose radius is 0.0866 m. Determine the centripetal force acting on the ball
Suppose that a standing wave on the flagpole gives rise to a sound wave of the same frequency. A person would be able to hear the sound produced by the above standing wave, What is the lowest flagpole harmonic the mouse can hear
Two positive charges of 1.7e-10 C are placed on the x axis at distances +20 cm and -20 cm from the origin, respectively. A third positive charge of 1.5e-11 C can be moved along the y axis. At what value of y the electrostatic force on the third charg..
A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 285 km/h in a semicircular arc with a radius of 190 m. Determine the tangential acceleration of the car
A straight wire in a magnetic field experiences a force of 0.030 N when the current in the wire is 2.7 A. What is the new current
a microwave oven operates at 2.4 ghz with an intensity inside the oven of 2500 wm2.what is the amplitude of the
A gas mixture contains 30% CH_4_, 30% C_2_H_4_ and 40% C_2_H_6_ on a molar basis. What is the composition in weight percent
A 2-kg mass is attached to a spring hanging vertically from the ceiling of an elevator. With the elevator moving up at a constant velocity of 3 m/s, the extension of the spring is 4 cm. What is the spring constant, k, of the spring?
Suppose there are two transformers between your house and the high-voltage transmission line that distributes the power. In addition, assume that your house is the only one using electric power. At a substation the primary of a step-down transform..
Two masses are on a frictionless horizontal surface moving by 2 perpendicular directions (m1=m & m2=3m). After the collision the m1 mass stops. What is the velocity of mass m2 after the collision, if before the collision of the masses v1=5m/s and v2=..
Ethyl alcohol flows through a horizontal tube of diameter 3.00 cm that is joined to a second horizontal tube of diameter 1.62 cm. What is the speed of flow in the first tube
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