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The position of a particle is given by x = 3.9 cos pi t , where x is in meters and t is in seconds.
1. Discover the speed and acceleration of the particle when x = 2.3 m.
2. Discover the maximum speed and maximum acceleration of the particle.
Radio waves are diffracted by large objects such as buildings, whereas light is not noticeably diffracted by large objects such as buildings. Why is this?
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.54 m/s. The pulling force is 108 N parallel to the incline, What is the change in kinetic energy of the crate
a small diameter 61-cm long solenoid has 280 turns and is connected in series with a resistor of 184 ohm. calculate
An electron is accelerated through a potential difference of 3 eV and is incident on a finite potential barrier of height 5 eV and thickness 5 x 10 * m. What is the probability that the electron will tunnel through the barrier? Show all steps.
three equal positive point charges of magnitude q4.00 mu c are located at three corners of a square of edge length d6.9
A man observes snow falling vertically when he is at rest, but whenhe runs through the falling snow at a speed of 6.80 m/s, it appears to be falling at an angle of28.0° relative to the vertical. Find the speed of the snow relative to the earth.
a plate capacitor has a spacing between its plates of 5.0 mm and a potential difference of 3.0 103 v across its plates.
Say the electrical company needs to step down the voltage from 7200V RMS in the power line behind your house to the required 120V RMS, how many loops must be on the secondary side
two stationary positive point charges charge 1 of magnitude 3.80nc and charge 2 of magnitude 1.70nc are separated by a
A spherical mirror is polished on both sides. When utilized as a convex mirror, the magnification is +1/4. What is the magnification when utilized as a concave mirror, the object remaining the similar distance from the mirror? Give your answer to thr..
Determine Maximum wavelength and Minimum wavelength. How various penguins of mass 16 kg each can stand on the ice block before they find their feet wet.
After falling from rest from a height of 33 m, a 0.47-kg ball rebounds upward, reaching a height of 23 m. what average force was exerted on the ball
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