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A 70 g bullet traveling at 250 m/s penetrates a block of ice at 0°C and comes to rest within the ice. Assuming that the temperature of the bullet does not change appreciably, how much ice is melted as a result of the collision?
a braking force of 6000 n was applied to a 100kg truck bringing it to a complete rest in 75m.a. how much work ws done
Perhaps to confuse a predator, some tropical beetles are colored byoptical interference that is due to scales whose alignment forms adiffraction grating, What is the grating spacing of the beetle
two tanks are engaged in a training exercise on level ground. the first tank fires a paint-filled training round with a
A pitched ball is hit by a batter at a 45°angle and just clears the outfield fence, 98 m away. find the velocity of the ball when it left the bat
What is the pressure change in water going from a 3.2- cm-diameter pipe to a 2.3- cm-diameter pipe if the velocity in the smaller pipe is 4.0 m/s
a tennis ball of mass o.022 kg is moving at 3.1 m/s at anangle of 222 degrees to the horizontal. it is struck by a tennisracket which exerts a force on it of 73t - 442t 2 N. find the final velocity of the tennis ball
A particular satellite was placed in a circular orbit about 155 mi above Earth, Determine the time required for one complete revolution
A wheel is rotating freely at angular speed 490 rev/min on a shaft whose rotational inertia is negligible. A second wheel, initially at rest and with 5 times the rotational inertia of the first, is suddenly coupled to the same shaft. (a) What is the ..
What work is done when a 2 C is moved through an electric potential difference of 2 V? Calculate to two decimal places
q1. a weight of 1200 n rests on a lever at a point 0.50 m from a support. on the same side of the support at a distance
In a single-slit diffraction pattern produced by electromagnetic radiation from a distant source passing through a slit of width a, What is the wavelength of the electromagnetic radiation
The critical angle for a special type of glass in air is 41.8. The index of refraction for water is 1.33. What is the critical angle if glass is immersed in water.
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