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The 230,000-lb space-shuttle orbiter touches down at about 220 mi/hr. At 200 mi/hr its drag parachute deploys. At 35 mi/hr, the chute is jettisoned from the orbiter. If the deceleration in feet per second squared during the time that the chute is deployed is -0.0003v^2 (speed v in feet per second), determine the corresponding distance traveled by the orbiter. Assume no braking from its wheel brakes.
Two 2.3-cm-diameter electrodes with a 0.10-mm-thick sheet of Teflon between them are attached to a 9.0 battery. What is the charge before the Teflon is removed
If a cell’s membrane thickness doubles but the cell stays the same size, how do the resistance and the capacitance of the cell membrane change?
A 50 g horizontal metal bar, 12 cm long is free to slide up and down between two tall, vertical metal rods that are 12 cm apart. What is the terminal speed at which the bar falls
A monoenergetic beam of electrons in incident on a single slit of width 1.05 nm. A diffraction pattern is formed on a screen 20 cm from the slit. what is the energy of the incident electrons
A 4.5 W flashlight bulb draws 750 mA. At what voltage does it operate
Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency ejection. Determine the negative acceleration he experienced
A ball of mass 8.0 kg is suspended by two wires from a horizontal arm, which is attached to a vertical shaft, What are the tensions in wires 1 and 2
An 8.0 kg block is released from rest, v1 = 0 m/s, on a rough incline, which has an angle of 40 from the horizontal. How much work gravity do on the block during this process
A physics lecture room has a volume of 251m^3. Calculate the mass of the air in the room
A toy balloon is initially at a temperature of T = 15o C. Its initial volume is 0.0042 m3 (It is a 10 cm radius sphere). Assume that the pressure in the balloon always equals atmospheric pressure, 101.3 kPa.
An ideal gas at 17.8 °C and a pressure of 1.66 x 105 Pa occupies a volume of 3.22 m3. calculate How many moles of gas are present
Over a time interval of 1.92 years, the velocity of a planet orbiting a distant star reverses direction, changing from +22.2 km/s to -20.5 km/s. Find (a) the total change in the planet's velocity (in m/s) and (b) its average acceleration (in m/s2) du..
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