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A 7.0 kg ball with the initial velocity of (7i+5j)m/s collides with a wall and rebounds with a velocity of (-7i+5j)m/s. what is the impulse exerted on the ball by the wall.
In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which they scattered alpha particles, What is the smallest distance between the alpha particle and the nucleus before the alpha particle reverses direction
The total translational kinetic energy of the molecules of a sample of gas at 447 K is 1.33 x 10^4 J, Find the average translational kinetic energy of a single molecule
given the following vectors a is 25lbs at an angle of 30 degrees clockwise from the x-axis and b is 42lbs at an angle
A small sphere with mass 1.20 hangs by a thread between two large parallel vertical plates 5apart. The plates are insulating and have uniform surface charge densities and. The charge on the sphere is = 8.80×10-6.
In a 261-turn automobile alternator, the magnetic flux in each turn is ?B = (2.62E-4 T*m2) cos(?t), determine the maximum emf in the alternator
How does the thermal velocity scale with the size of the molecule diffusing. determine the scaling law based on the resulting equation
One of the harmonic frequencies of tube A with two open ends is 1020 Hz. The next-highest harmonic frequency is 1088 Hz. What is the number of this next-highest harmonic
A research submarine has a 40.0cm -diameter window 8.30cm thick. The manufacturer says the window can withstand forces up to 1.10×106N
In a control system, an accelerometer consists of a 4.99-g object sliding on a calibrated horizontal rail, Find the force constant of the spring required for the calibration to be correct
A sled and rider with a combined weight of 67 kg are at rest on the top of a hill 26 m high. What is their total energy at the top of the hill
A series circuit with a resistor and a capacitor has a time constant of 0.41 ms. The circuit has an impedance of 419 O at a frequency of 1250 Hz. What the capacitance and the resistance
A converging lens with a diameter of 30.0 cm forms an image of a satellite passing overhead. what is the altitude of the satellite
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