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Astronaut Benny travels to Vega, the fifth brightest star in the night sky, leaving his 35.0-year-old twin sister Jenny behind on Earth. Benny travels by a speed of 0.9996 c, and Vega is 25.3 light-years from Earth.
How much does Benny age when he arrives at Vega (in months)?
Determine the wavelength of light emitted when a hydrogen atom makes a transition from the n = 13 to the n = 3 energy level according to the Bohr model. The Rydberg constant is 1.09737 × 10^7 m?1 .Answer in units of nm
A block slides down a frictionless ramp of height 0.37 meters. How far will the block travel from the base of the ramp before the velocity reaches 2.3 m/s
rocket man has a propulsion unit strapped to his back. he starts from rest on the ground fires the unit and accelerates
A truck driver has a shipment of apples to deliver to a destination 550 away. The trip usually takes him 10.0 . Today he finds himself daydreaming and realizes 100 into his trip that that he is running 30.0 later than his usual pace at this point. At..
When connected to a 120 V source, an electric heater is rated at 1200 W and a toaster at 6.0 102 W. what total current is delivered by an external source
a violin string is stretched between the nut and the bridge which are two fixed points on the violin a distance of 0.35
An electron is accelerated to a speed where its total energy is 229 times larger than its rest energy. What is the momentum of the electron measured in MeV/c units
A model-train transformer plugs into 120-V ac, What voltage is present across the tracks
A diverging lens has a focal length of 71.5 cm. A real object is placed 30.9 cm in front of the lens. How far is the image located from the lens
light of wavelength 5.0 x 10 ^-7 meter in air hits a double slit. Distance between slits is 4.0 x 10^-4 m Distance to screen is 2.0 m, Determine wavelength of light in water
An ac generator supplies a peak (not rms) voltage of 150 V at 60.0 Hz. The generator is connected in series with a 35-mH inductor, a 45-µF capacitor and an 85-? resistor. What is the power factor for this circuit
Two 0.40kg soccer balls collide elastically in a head-on collision. The first ball starts at rest, and the second ball has a velocity of 3.5 m/s. What is the final velocity of the first ball
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