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Question: A block is connected to a spring that is suspended from the ceiling. Assuming air resistance is ignored. Describe the energy transformations that occur within the system consisting of the block, the Earth, and the spring when the block is set into vertical motion.
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An electron traveling at 745 m/s enters a1.7 T magnetic field. The angle between the velocity and the field is 88 degree. Evaluate the radius of the resulting circular path
The voltage across an air-filled parallel-plate capacitor is measured to be 85.0 V. When a dielectric is inserted and completely fills the space between the plates, the voltage drops to 25.0 V. If the dielectric doesnt completely fill the space betwe..
In a performance test, each of two cars takes 9.3 s to accelerate from rest to 25 m/s. Car A has a mass of 1415 kg, and car B has a mass of 1900 kg. Discover the net average force that acts on (a) car A and (b) car B during the test.
On a cool morning, when the temperature is 14.0 ^circC, you measure pressure in your car tires to be 20.0 psi. After driving 40.0 mi on the freeway, the temperature of your tires is 50.0 ^circC.
A ceiling fan has five blades, each with a mass of 0.90 kg and a length of 0.66 m. what is the total rotational kinetic energy of the five blades
q1. identical samples containing 32p are measured for a period of 1 hr in a counter having an efficiency of 44 percent
An undamped 1.58-kg horizontal spring oscillator has a spring constant of 22.8 N/m. What is the oscillator\'s total mechanical energy
a spherical shell of a van de graff generator has an electric field strength e -10000 nc on the surface of its
At its farthest point, the three-point line is 7.24 meters away from the basket in the NBA. A basketball player stands at this point and releases his shot from a height of 2.05 meters at a 35.0 degree angle.
What is the mass in grams of 1L of helium gas as STP? (Find moles and then convert moles to grams; atomic mass =4.0grams/mol), Why do helium balloons float
A 30 μF capacitor initially charged to 30 μC is discharged through a 2.50 kΩ resistor. Determine how long does it take to reduce the capacitor charge to 1.00 ΩC
X rays with a wavelength of 0.18 nm undergo first-order diffraction from a crystal at a 74 degree angle of incidence
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