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A train pulls away from a station with a constant acceleration of 0.40 m/s2. A passenger arrives at a point next to the track 6.0 s after the end of the train has started from rest at that very same point. What is the minimum constant speed at which she can run and still catch the train?
A simple harmonic oscillator with m=0.815 kg and total energy E=135 J has amplitude 1.35m, Find the maximum acceleration
An airplane pilot with a mass of 90.0-kg pulls out of a dive by following the arc of a circle whose radius is 300 m at a constant speed of 190 km/h. find the force exerted on the pilot by the airplane seat
Many nuclear reactors use heavy water moderators in which elastic collisions occur between neutrons and deuterons of mass 2.0 u. What is the speed of a neutron, expressed as a fraction of its original speed
The acceleration due to gravity is 9.8 m/s^2 at Las Vegas, Nevada. What is the mass of the patatoes on the moon
Aluminum is a very light metal with density of 2.7 g/cm^3. What is the weight in pounds of a solid sphere of aluminum of radius 50 cm
A heat engine operates in a Carnot cycle between 82.0°C and 345°C. It absorbs 20,000 J of energy per cycle from the hot reservoir, What is the mechanical power output of this engine
In a model AC generator, a 503 turn rectangular coil 5.0 cm by 21 cm rotates at 120 rev/min in a uniform magnetic field of 0.59 T. What is the maximum emf induced in the coil
An ocean liner leaves New York City and travels 37.0° north of east for 171 km. How far east and how far north has it disappeared? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
A bullet with mass 4.85 g is fired horizontally into a 1.965-kg block attached to a horizontal spring. The spring has a constant 6.29 102 N/m and reaches a maximum compression of 6.40 cm. Find the initial speed of the bullet–block system. m/s
A person who weighs 680 N is riding a 98-N mountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in each tire is 6.45 105 Pa, what is the area of contact between each tire and the ..
Two radio-frequency point sources separated by 1.5 m are radiating in phase with ? = 0.30 m. How many maxima does it detect
A large roller in the form of a uniform cylinder is pulled by a tractor to compact earth. The cylinder has dimeter of 1.80 m and mass of 10,000 kg. If frictional losses can be ignored, what average power must the tractor provide to accelerate it from..
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