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Solve the all parts of given question:
Question: Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60 kg runner completes a 5.0 km race in 17 minutes.
Part A: Determine the drag force on the runner during the race. Suppose that the cross section area of the runner is 0.72 m2 and the density of air is 1.2 kg/m3.
Part B: What is this force as a fraction of the runner's weight? (D/w)
Could someone please show me the work and explain how to get the answer.
You, Archimedes, suspect that the king's crown is not solid gold but is instead gold-plated lead. To test your theory, you weigh the crown, and find it to weigh 60.0 N, What percentage (by weight) of this crown is made of gold
One solenoid is centered inside another. The outer one has a length of 50.0cm and contains 6800 coils, Find the emf induced in the inner solenoid
A high-voltage transmission line with a resistance of 0.285 ohm/km carries a current of 1.30 kA. Find the power loss due to resistance in the line
A car moving along a staight road uniformly slows down to a speed of (5 + 0.4x) m/s in 10 seconds. During this time the car travels (150 +x) m. What is the acceleration
A defensive lineman of mass M = 115 kg makes a flying tackle at vi \= 4.00 m/s on a stationary quarterback of mass m = 76 kg, calculate the shear stress exerted on the bone in the collision.
the minute hand of a wall clock measures 13 cm from its tip to the axis about which it rotates. the magnitude and angle
the note middle c on a piano has a frequency of 512 hz in the fundamental tone. suppose that the string that produces
A capacitor has a capacitance of 2.1410-8 F. In the charging process, electrons are removed from one plate and placed on the other plate. When the potential difference among the plates is 440 V, how many electrons have been transferred?
A thin rod of length L and negligible mass can pivot about oneend to rotate in a vertical circle. A heavy ball of mass m isattached to the other end. how much work does its weight do on it
Consider a string consisting of two densities, p1 in region 1 where x 0. A continuous harmonic wave is incident from the left. What are the ratios of the square of the amplitude magnitudes for the reflected and transmitted waves to the incident w..
An archer standing on a 15° slope shoots an arrow 20° above the horizontal, as shown in the figure. How far down the slope does the arrow hit
A new circus act features a large frictionless cannon with an 2500 N/m spring mounted at the bottom of a long barrel which makes an angle of 37.0o with the horizontal. Find the speed of the acrobat when he reaches the top of the barrel. Use energy ..
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