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To determine the location of his center of mass, a physics studentlies on a lightweight plank supported by two scales 2.5 mapart. If the left scale reads 290N and the right scale reads122N, find
a) the students mass and
b) the distance from the student's head to his center of mass.
You are traveling on a hilly road. At a particular spot, when your car is perfectly horizontal, What is the radius of the circular arc in meters
An object of mass 6.8 kg is attached to aspring of force constant 1720 N/m. Calculate the maximum velocity the object has during its motion
Assume the Earth is in uniform cicular motion about the sun. Explain how to determine the angular velocity of the Earth
Sound with a frequency 700 Hz from a distant source passes through a doorway 1.07 m wide in a sound-absorbing wall. Find the number of the diffraction minima at listening positions along a line parallel to the wall
The planet Neptune has a satellite, Proteus, which travels in an orbit 1.180*10^8 m with a period of 1.12 days. Calculate the mass of Neptune
A tightrope walker is practicing. She is balanced on a rope at the exact midpoint of the rope. What angle with the horizontal does it make
two flexible wires (massless) suspend a 10 cm-long conductor in the magnetic field with b = 4.2T. what is the current to let the wire just have zero tension
Heather and Mathew walked eastward with a speed of 9.8 m/s. If it takes those 34 min. to walk to the store, how far have they walked.
A skier (m = 63.0 kg) starts sliding down from the top of a ski jump with negligible friction and takes off horizontally. Find the skier's total kinetic energy as she reaches the ground
A 115- resistor, a 0.237-µF capacitor, and a 5.56-mH inductor are connected in series to a generator whose voltage is 29.0 V. The current in the circuit is 0.130 A. Because of the shape of the current-versus-frequency graph (shown), there are two ..
Light precedes through three polarizing sheets. Unpolarized light enters the 1st sheet and the resultant vertically polarized beam continues through the 2nd and 3rd. What percent of the original intensity emerges from filter #1
You are standing at = 9.0 km Lightning bolt 1 at x= 0km and lightning bolt 2 at x = 12.0km. what is the time difference between the two flashes
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