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She exerts a force of magnitude 22 N on the free end of the crank handle, and this end moves in a circular path of radius 0.28 m.
Suppose the target is 200 m away, but the sight line to the target is above the horizontal by 30.0 degrees. Should the marksman aim high, low, or right on?
A 60.0 ohm resistor is connected in parallel with a 115.0 ohm resistor. This parallel group is connected in series with a 15.0hm resistor.
A 1500kg automobile starts from rest on a horizontal road and gains speed of 72km/h in 30 s.
What is the rate at which energy is delivered to the resistor?What is the mechanical power delivered by the force F_app?
The resolving power of a microscope is proportional to the wavelength used. A resolution of approximately 1.0 x 10-11 m (0.01 nm).
Two equal, positive charges, q = 2.0 micro Coulomb ; are located on the x-axis- one at +0.3m and the other at -0.3m.
The speed of a 4.0kg object is given by (2t) m/s, where t is in seconds. At what rate is the resultant force on this object doing work at t = 1 second?
Scott, riding for the Mercury team, won the 2002 Mt. Rushmore Hill Climb bicycle race with a winning time of 1 hour 50 minutes 20 seconds.
An ac generator with a frequency of 1.00 kHz and an rms voltage of 24 V is connected in series with a 2000 ohm resistor and a 0.365 H inductor.
Path A is 9.0 km long heading 60.0° north of east. Path B is 6.0 km long in a direction due east. Path C is 3.0 km long heading 315° counterclockwise from east.
Find the magnitude of a fourth force Find the magnitude of a fourth force
What are the units of mass and the units of weight for the metric system?
A girl consumes 8.4 x 10 J (2000 food calories) of energy per day while maintaining a constant weight. What is the average power she produces in a day?
Vector A = 119 grams @ 164°. What is Ax ?
If you wanted to express your height with the largest number, you would use 1) meters, 2) feet, 3) inches, or 4) centimeters? Why?
Show that the general direction [ hkl ] in a cubic crystal is normal to the planes with Miller indices (hkl). Is the same true in general for an orthorhombic
Show that the ? = 1 eigenspace contains all vectors of the form
This means that the hydrogen molecules, on the average have the same kinetic energy and speed as oxygen molecule?
Sam, whose mass is 75 kg, takes off across level snow on his jet-powered skis. The skis have a thrust of 200 N and a coefficient of kinetic friction.
There are three elements from the 2x2 vector space:
A 1100 kg car, starting from rest accelerates for 5.0 seconds at a constant 4.60 m/s^2. Determine the average power generated by the vehicle.
The medium-powered objective lens in a laboratory microscope has a focal length f-objective = 4.00 mm.
A 1.5 kg object moving along the x axis has a velocity of +4.0 m/s at x = 0. If the only force acting on this object is shown in the figure
Suppose the same sound wave passes through an area of 25 cm^2. What is its intensity level?