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(a) If you jump out of an airplane without a parachute, you fall faster and faster until air resistance causes you to approach a steady velocity, called the terminal velocity. Sketch a graph of your velocity against time.
(b) Explain the concavity of your graph.
(c) Assuming air resistance to be negligible at t = 0, what natural phenomenon is represented by the slope of the graph at t = 0?
Two equal-mass stars maintain a constant distance apart of 4.8E10 m and rotate about the point midway among them. They make one revolution every 2.6 yr. What is the mass (in kg) of each star?
The angular speed of an automobile engine is increased at a constant rate from 1100 rev/min to 4200 rev/min in 16 sec. Find its angular acceleration in revolutions per minute-squared
What is the strength of an electric field that will balance the weight of a 3.8g plastic sphere that has been charged to -5.4nC
A thin, 80.0 g disk with a diameter of 6.00 cm rotates about an axis through its center with 0.300 J of kinetic energy
In an L-R-C series circuit, the resistance is 360 ohms, the inductance is 0.360 henrys, and the capacitance is 1.20×10?2 microfarads. What is the resonance angular frequency ?0 of the circuit? (answer should be in rad/s)
State the direction as an angle with respect to the +x axis.
What is magnitude of the difference in frequency
A mass-spring system oscillates with an amplitude of 5.50cm. If the spring constant is 247N/m and the mass is 584g, determine the mechanical energy of the system
a ray of light strikes a flat 2.00-cm-thick block of glass n1.50 at an angle of 30 degrees with respect to the normal.a
Maria throws Jackson a life preserver attached to a rope. Jackson's mass is 235 kg. What is the Net Force on Jackson
Discuss the geologic history of the area where you live or grew up. Discuss some of the major factors that might have played a role in shaping the local terrain (major rivers, sea-level changes, volcanoes, ancient sea beds, glaciers, earthquakes, ..
A 200 g block is pressed against a spring of force constant 1.40 kN/m until the block compresses the spring 10 cm. The spring rests at the bottom of a ramp inclined at 60.0 degrees to the horizontal.
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