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A) A cardinal (Richmondena cardinalis) of mass 4.00×10-2 kg and a baseball of mass 0.140 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
B) A man weighing 750 N and a woman weighing 480 N have the same momentum. What is the ratio of the man's kinetic energy to that of the woman ?
A sphere with a diameter of 70 cm is held at a temperature of 290°C and is radiating energy. what is the emissivity of the sphere
A meteor has a speed of 77.0 m/swhen 700 km above the Earth. It isfalling vertically (ignore air resistance), How much thermal energy is produced
In a game of pool, a cue ball with an initial velocity of 1.25 m/s directed to the right (along the +x-axis) collides with the five ball, Find the cue ball's final velocity
1. imagine the lamp as the sun the sphere as the moon and your head as the earth. your eyes are in los angeles. move
A helicopter has two blades, each of which has a mass of 270 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 54 rad/s. (a) What is the total moment of inertia of the two blades about the axis o..
An oscillating LC circuit has a current amplitude of 7.10 mA, a potential amplitude of 250 mV, and a capacitance of 200 nF. What is the maximum energy stored in the capacitor
a large cylindrical tank contains 0.790m3 of nitrogen gas at 20.0?c and 7850pa absolute pressure. the tank has a
What is the compacitance of a parallel-plate capacitor with area 3.8_dm^2 if the seperation between the plates is 0.54_m
A light string can support a stationary hanging load of 27.0 kg before breaking. What range of speeds can the object have before the string breaks
What is the volume of air at atmospheric pressure (100kPa) that must be pumped into a tyre that has a volume of 0.1 cubic meter?
stan accelerates from a standing start at 2 ms2 and one second later kathy accelerates from a standing start at the
A cylindrical capacitor has outer and inner conductors whose radii are in the ratio of 5 to1. The inner conductoris to be replaced by a wire whose radius is one half the radius of the original inner conductor.
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