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Q1. An airplane maintains a speed of 567 km/h relative to the air it is flying through as it makes a trip to a city 745 km away to the north.
What time interval is required for the trip if the plane flies through a headwind blowing at 37.8 km/h toward the south?
Q2. A small circular hole 6 mm in diameter is cut in the side of a large water tank, 14.00 m below the water level in tank. The top of the tank is open to the air.
What is the speed of efflux?
What is the volume discharged per unit time.
What is the reading of spring scale
The rock strikes the ground a horizontal distance of 44 m from the base of the building. Assume that the ground is level and that the side of the building is vertical. How long did the rock take to hit the ground? Give your answer in seconds to two d..
At time t=0 a grinding wheel has an angular velocity of 28.0 rad/sec. It has the constant angular acceleration of 35.0 rad/sec^2 until a circuit breaker trips at time t=1.80. From then on, the wheel turns through an angle of 433 as it coasts to the s..
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
A thin, flexible metal plate attached at one end to the platform, can be used to measure mass. When the free end of the plate is pulled down and released, it vibrates in simple harmonic motion with a period that depends on the mass attached to the pl..
Though slow on land, the leatherback turtle holds record for the fastest water speed of any reptile: 9.78 m/s. It is also among the largest of reptiles. Assume the largest leatherback yet discovered were to swim at the top leatherback speed. If its k..
When two tuning forks of 128 Hz and 149 Hz, respectively, are sounded simultaneously, how various beats per second are heard.
Determine magnitude of the force
A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer .
A .228g wires are stretched between two points 77.20 cm apart. The tension in the wire is 618N. Find the frequency of the first harmonic. Reply in units of Hz.
Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be attached end to end, as in part a of drawing, or one on top of the other, as in part b. When either of these arrangements is placed between the hot a..
How the system comes to thermal equilibrium
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