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While waiting for your plane to take off, you suspend your keys from a thread and set the resulting pendulum oscillating. It completes exactly 86 cycles in 1 minute. You repeat the experiment as the plane accelerates down the runway, and now discover the pendulum completes exactly 93 cycles in 1 minute. Discover the plane’s acceleration.
A system does 4.4 × 104 Joule of work, and 7.9 ×104 Joule of heat flows into the system during the process. Obtain the change in the internal energy of the system
When mass M is tied to the bottom of a long, thin wire suspended from the ceiling, the wire's second-harmonic frequency is 150Hz . Adding an additional 1.5kg to the hanging mass increases the second-harmonic frequency to 270Hz.
If, instead, the gold is drawn out into a cylindrical fiber of radius 1.5µm, what is the length of fiber.
A person lies on a balance board as shown in the figure below. The person weights 80 kg, and the scaleunder the person's feetreads 30 kg. Compute the position of the person's center of gravity
Which one of the following statements is correct concerning the variation of pressure with depth in a static fluid? Which one of the following statements is correct concerning ahydraulic lift?
The toadfish makes use of resonance in a closed tube to produce very loud sounds. Calculate the intensity of the sound wave emitted
A volleyball is spiked so that its incoming velocity of +4.79 m/s is changed to an outgoing velocity of -12.0 m/s. find the magnitude of the impulse that the player applies to the ball
at a time when mining asteroids has become feasible astronauts have connected a line between their 3120-kg space tug
ricardo and jane are standing under a tree in the middle of a pasture. an argument ensues and they walk away in
Calculate the work done by an external agent during anisothermal compression of 1.00 mol of oxygen from a volume of24.0 L at 0°C and 1.00 atmpressure to 17.5 L
two point charges are on the y axis. a 4.80-microc charge is located at y 1.25 cm and a -2.2-microc charge is located
A 55.1 kg ice skater is moving at4.10 m/s when she grabs the loose end of a rope, the opposite end of which is tied to a pole. She thenmoves in a circle of radius 0.800 maround the pole.
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