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Question1
A cardinal (Richmondena cardinalis) of mass 4.00×10-2kg and baseball of mass 0.143kg have the same kinetic energy. What is ratio of the cardinal's magnitude p_c of momentum to the magnitude p_b of the baseball's momentum?
Question2
Ignore the weight of the meter stick and consider only the two weights hanging from its ends. One is a 1-kg weight and the other is a 3-kg weight. Where is center of mass of this system (the point of balance)? How does the answer relate to torque?
A long solid cylindrical wire of radius 0.01 meters carries a current whose density (current per unit area) is given by J=0.02r^2.
When landing after a spectacular somersault, a 40.0 kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert
Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. find the maximum magnitude of the electric field
An object-spring system oscillates with amplitude of 3.00cm. If the spring constant is 205 N/m and object has a mass of 0.50 kg, determine each of the following values.
two vehicles of equal mass at a 90 degree intersection. If the momentum of vehicle A is 1.20 x 10^5 kg km/h east and the momentum of vehicle is 8.50 x 10^4 kg km/h north, what is the resulting momentum of the final mass
The distance between successive crests of a sound wave is 33m. what is the approximate frequency of the sound wave
If the hypotenuse of a right triangle is 6.00cm long, and the opposite is 4.00. What is the angle facing the opposite
A steel rod (? = 7860 kg/m3) has a length of 2.19 m. It is bolted at both ends between immobile supports. Initially there is no tension in the rod, because the rod just fits between the supports. Find the tension that develops when the rod loses 3..
A simple pendulum has a length of 52.4 cm and makes 83.7 complete oscillations in 2.00 min. Find the period of the pendulum
A solution has a hydronium-ion concentration of 1.0 x 10^-3 mol per liter. What is the hydroxide-ion concentration of this solution
A car starts from rest and travels for 10s with a uniform acceleration of +2.4 m/s2. The driver then applies the brakes, causing a uniform negative acceleration of -2.0 m/s2.
A high-pass RC filter is connected to an AC source with a peak voltage of 18 V. The peak capacitor voltage is 5.27 V
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