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A 4.0 kilogram mass has a velocity of 4 m/s , east when it explodes into two 2 kilogram masses. After the explosion one of the masses has a velocity of 3m/s at an angle of 60o north of east. Find the magnitude of the velocity of the other mass after the explosion?
A 0.0220 kg bullet moving horizontally at 450 m/s embeds itself into an initially stationary 0.500 kg block. How far does this combination travel before stopping
A 79.2 kg airplane pilot pulls out of a dive by following, at a constant speed of 191 km/h, the arc of a circle whose radius is 321m.
A steel strut near a ship's furnace is 1.80 m long, with a mass of 1.52 kg and a cross-sectional area of 1.00 10-4 m2. Find the change intemperature of the strut
Calculate the longest three wavelengths and the series limit for the Paschen (n2 = 3) and the Brackett (n2 = 4) series, and plot both series on the same linear scale.
1. the light with the wavelength 500nm propagates through the medium with index of refraction 2.5. find the speed and
Young David who slew Goliath experimented with slings before tackling the giant. He found that he could revolve a sling of length 0.450 m at the rate of 10.0 rev/s. What is the speed of the stone for each rate of rotation
a 42.0 kg child sits in a swing supported by two chains each 3.06 m long.a if the tension in each chain at the lowest
A proton accelerates from rest in a uniform electric field of650 N/C. At some later time, its speedis 1.3 106 m/s. Find the magnitude of the acceleration of the proton. How long does it take the proton to reach this speed?
A small box of mass 10 kg is placed on top of a large box with a mass 4 times that of the small box. find the magnitude of the frictional force acting on the small box
A 150g ball and a 250g ball are connected by a 34cm long, massless, rigid rod. The balls rotate about their center of mass at 130 . what is the speed of ball of 150 g.
Suppose that by stirring 921 g of water you are able to increase its temperature from 19.0° C to 21.0° C. Find the increase in the water's entropy
Find out the magnitude and direction of the displacement
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