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A spring with a force constant of 52 N / m has a relaxed length of 2.45 m. When a mass is attached to the end of the spring and allowed to come to rest, the vertical length of the spring is 3.57 m. Calculate the elastic potential energy in the spring?
A pinhole camera takes a picture of a building 200 m tall. If the height of the image on the back of the camera is 5 cm tall, how far is the camera from the building
question1three identical 3.60 masses are hung by three identical springs. each spring has a force constant of 4.90 and
The distance between the moon and the earth is 384,403 km, The orbital period of the moon is about 27.32 days. Calculate the average orbital speed in m/s of the moon
A 972 kg car is going 20 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads and rotors
In an L-R-C series circuit, the resistance is 420 ohms, the inductance is 0.340 henrys, and the capacitance is 1.80×10?2 microfarads. What is the resonance angular frequency of the circuit
The Earth and Moon are separated by about 400 ? 106 m. Suppose Mars is 1.6 1011 m from Earth and forms a right triangle with Earth and the Moon. determine the angular separation of Earth
What are the next two harmonic frequencies above the fundamental frequency that would create resonance in the same tube. What length tubes (also closed at one end) would have as their fundamental frequencies.
The train comes to a stop 6.0 m from the point at which it was released. What is the magnitude of train's acceleration after its wheel begins to stick.
A uniform steel plate has an area of 0.905 m2. When subjected to a temperature difference between its sides, a heat current* of 22.5 kW is found to flow through it. What is the temperature gradient? What is the temperature difference when the plat..
A viewing window on the side of a large tank at a public aquarium measures 32 in. by 37 in. The average gauge pressure from the water is 6 psi
A projectile is fired at an upward angle of 45° from the top of a 212 m cliff with a speed of 161 m/s. What would be its speed while it strikes the ground below.
What is the magnitude of the vertical component of its velocity as it strikes the ground.
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