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A ball is thrown upward in the air by a passenger on a train that is moving with constant velocity.
(a) Describe the path of the ball as seen by the passenger. Describe the path as seen by a stationary observer outside the train.
(b) How would these observations change if the train were accelerating along the track?
A light bulb is wired in series with a 122-? resistor, and they are connected across a 120.0-V source. What is the resistance of the light bulb
A 1 165.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 9 100.0 kg truck moving in the same direction at 20.000 m/s. The velocity of the car right after the collision is 18.000 m/s to the..
An object has a kinetic energy of 275 J and a momentum of magnitude 25.0 kg * m/s. Find the speed and mass of the object
A microscope has an objective lens of focal length 5.40 mm. The objective forms an image 15.9 cm from the lens. The focal length of the eyepiece is 2.80 cm. What is the distance between the lenses
Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 14.1 km. What is the radius of the geostationary orbit for this neutron star
At normal incidence, the intensity of sunlight at the Earth is 1400 W/m2. find the force on the Earth due to radiation pressure from the Sun
A child and sled with a combined mass of 49.0 kg slide down a frictionless slope. what is the height of the hill
a small ball bearing is illuminated with blue light from an argon ion laser (4880 A.) What is the diameter of the ball bearing
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to four times the earth's radius of 6.38 multiply.gif 106 m.
A ball is thrown upward,. At 5.00 m above its launch point, the ball's speed is one-third its launch speed. What maximum height above the launch point does the ball attain
The bugle and the Bach - Trumpet have no keys and thus play only the natural scale (open pipes). If the lowest note you can play on a bugle is D2 (73.42 Hz), what other notes can you play
A 5kg fish swimming 1 m/s swallows and absentmided 1kg fishswimming towards it at a velocity that brings both fish to a haltimmediately after lunch - what is the velocity (v) of the smallerfish before lunch ?
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