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A 1.50 kg mass is hung from a vertical spring with k=30.0 N/M
(a) what is the magnitude and direction of the tensile force acting on the spring?
(b) how far did the spring stretch in meters and centimeters?
The Yerkes telescope in southern Wisconsin is the largest refracting telescope in the world. What are the focal lengths of the two lenses
A roller coaster (385 kg) moves from A (5.00 m above the ground) to B (27.0 m above the ground). What is the change in the car's kinetic energy
Electrons accelerated by a potential difference of 12.43 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the shortest possible wavelength
The mass of a string is 1.00 10-3 kg, and it is stretched so the tension in it is 120 N. What is the length of the string
Only two forces act on an object (mass=3.76 kg), as in the drawing. Find the direction (relative to the x axis) of the acceleration of the object
A 40 g bullet traveling 500 m/s penetrated 5 cm into a tree trunk. what was the retarding force on the bullet
A 195g oscillator has a speed of 91.50cm/s when its displacement is 3.90cm and 73.0cm/s when its displacement is 6.20 cm
A series RLC circuit has the following values: L =20mH, C=100 nF, R=20 Ohms, calculate the average power delivered to this RLC circuit
A constant force of 50 N is applied tangentially to the rim of a solid disc with a 60 cm radius. The wheel has a moment of inertia of 40 kgm^2. What is the mass of the disc
The minimum stopping distance for a car traveling at a speed of 30 {m/s} is 60 {m}, including the distance traveled during the driver's reaction time of 0.50 {s}.What is the least stopping distance for the same car traveling at a speed of 41 {m/s}..
A circular wire loop whose radius is 15.0 cm carries current of 2.50 A. What torque acts on the loop
A parallel plate capacitor has a charge of 2.66 X 10^-11 C after being charged by a 15.0 V battery. The plates are seperated by 2.00 mm of air
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