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The closest star to our solar system is Alpha Centauri, which is4.30 light years away. A spaceship with a constant speed of 0.800c relative to the Earthtravels toward the star. How much time would elapse on a clock on board the spaceship?
A) 3.23 yB) 4.40 yC) 5.15 yD) 5.38 y
A proton having an initial velocity of 18.1i hat bold Mm/s enters a uniform magnetic field of magnitude 0.300 T with a direction perpendicular to the proton's velocity, Determine the distance the proton traveled in the field
A 10000 N car comes to a bridge during a storm and finds the bridge washed out. The 750N driver must get to the other side, What is the speed of the car just before it lands safely on the other side
a uniform thin rod of length 0.50 m and mass 4.0 kg can rotate in a horizontal plane about a vertical axis through its center. what is the magnitude of the bullet's velocity just before the impact
As a 16,500 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. what was the plane's landing speed
A 180-turn circular coil has diameter 5.40 cm and resistance 1.05 \Omega. Find the induced current in the coil
One method for measuring the speed of sound uses standing waves. A cylindrical tube is open at both ends, find the speed of sound in the gas in the tube
A 868 kg automobile is sliding on an icy street. It collides with a parked car which has a mass of 663 kg. The two cars lock up and slide together with a speed of 22.9 km/h. What was the speed of the first car just before the collision?
he box is taken up a mountain where the air pressure outside the box is 8.00 104 Pa. The inside of the box is completely evacuated. Illustrate what is the magnitude of the force required to pull the lid off the box?
A simple pendulum is 4.00 m long. What is the period of simple harmonic motion for this pendulum if it is hanging in an elevatoraccelerating upward at 7.00m/s2
In a dentist's office an X-ray of a tooth is taken using X-rays that have a frequency of 7.60 × 1018 Hz. What is the wavelength in vacuum of these X-rays
a baseball just clears a 3.20-m wall that is 113 m from home plate. if the ball leaves the bat at 35.0deg and 1.20 m
A sealed container of volume 0.10 m3 holds a sample of 3.0 × 1024 atoms of helium gas in equilibrium. What is the average kinetic energy of the helium atoms
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