Physics, 15.04.2020 21:03 huntbuck14
Copper has a specific heat of 387 J/kg°C. A copper bullet is moving at 950 m/s. If the bullet is suddenly stopped so that all of its kinetic energy is converted into heat, determine the temperature that the copper bullet reached before it was stopped. Take the initial temperature of the bullet to be 30 °C.
Answers: 2
Physics, 22.06.2019 12:40
Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity
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Physics, 22.06.2019 21:00
The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.
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Physics, 22.06.2019 21:20
Astone is dropped from the upper observation deck of a tower, 250 m above the ground. (assume g = 9.8 m/s2.) (a) find the distance (in meters) of the stone above ground level at time t. h(t) = (b) how long does it take the stone to reach the ground? (round your answer to two decimal places.) s (c) with what velocity does it strike the ground? (round your answer to one decimal place.) m/s (d) if the stone is thrown downward with a speed of 2 m/s, how long does it take to reach the ground? (round your answer to two decimal places.) s
Answers: 3
Copper has a specific heat of 387 J/kg°C. A copper bullet is moving at 950 m/s. If the bullet is sud...
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