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1. Explain the location of a person’s center of mass for a high jumper using a Fosbury flop technique at their highest position above the bar.
2. Explain the location of a person’s center of mass for standing straight with their arms up over their head and feet shoulder width apart.
3. Explain the location of a person’s center of mass for sat on the floor with their legs and arms in front of them during a sit and reach test.
4. Explain the location of a person’s center of mass for standing straight by their arms by their sides and feet shoulder width apart.
a student starting from rest slides down a water slide. on the way down a kinetic frictional force a nonconservative
A propeller is modeled as five identical uniform rods extending radially from its axis. what is its rotational kinetic energy
An 18 kg sled starts up a 31 degree incline with a speed of 3.2 m/s. The coefficient of friction is 0.25. How far up the incline does the sled travel
a sniper fires a rifle bullet into a gasoline tank making a hole 56.0 m below the surface of the gasoline. the tank was
Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. Determine the final speed of each disk
the binding energy for chromium metal is 4.37 ev. what wavelength of radiation must be used to eject electrons with a
in a tape recorder the magnetic tape moves at a constant linear speed of 3.51 cms. to maintain this constant linear
A 60.0 kilogram skier starts from rest at the top of a ski slope 95.0 meter high. If frictional forces do -10.5 kJ of work on her as she descends, find how fast is she going at the bottom of the slope
The suspension system of your 1200 kg car has a natural oscillation frequency of 2.00 Hz without functioning shock absorbers. At what speed are you driving
A bicycle wheel of mass M (assumed to be concentrated at its rim) and radius R is mounted horizontally so it may turn without friction on a vertical axle. A dart of mass mo is thrown with velocity vo above and sticks in the tire.
A 7.7 uf capacitor and a 1250 ohm resistor are connected in series to a generator operating at 50 Hz and producing an rms voltage of 208 V
The current in a 100 watt light bulb is 0.760 Amp. The filament inside the bulb is 0.290 millimeter in diameter. Calculate the current density in the filament
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