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In February 1955, aparatrooper fell 370 m from anairplane without being able to open his chute but happened to landin snow, suffering only minor injuries. Assume that his speed atimpact was 60 m/s (terminal speed),that his mass (including gear) was 80kg, and that the force on him from the snow was at the survivablelimit of 1.2 105 N.
(a) What is the minimum depth of snow that would havestopped him safely?
m
(b) What is the magnitude of the impulse on him from the snow?
kgm/s
A 13.0 k? resistor and a capacitor are connected in series and then a 12.0 V potential difference is suddenly applied across them. Calculate the time constant of the circuit
(a) A 5.00-µF capacitor is connected to a 15.0-V battery. How much energy is stored in the capacitor? (b) Had the capacitor been connected to a 6.00-V battery, how much energy would have been stored?
A particle has initial velocity 5 m/s due east and acceleration 2 m/s^2 due west. Find the distance traveled during 3rd second of the motion.
A 200-W infrared laser emits photons with a wavelength of 1.05 multiply.gif 10-6 m, and a 200-W ultraviolet light emits photons with a wavelength of 3.51 multiply.gif 10-7 m. What is the energy of a single infrared photon
A thin lens has a focal length of 10.00 cm for red light. If the index of refraction for the lens material tends to decrease with increasing wavelength
Four identical metallic spheres with charges of +2.2 µC, +6.2 µC, ?6.6 µC, and ?3.6 µC are placed on a piece of paper. What is the resulting charge on each sphere
The scalar product of vectors and is +51.0. Vector has magnitude 9.00 and direction 28.0 west of south. If vector has direction 36.0 south of east, what is the magnitude of.
A pulley system has an efficiency of 87.5 percent. How much of the rope must be pulled in if a force of 648 N is is needed to lfit a 150kg desk 2.46m .
Consider a two lens system, where f1=5 cm f2=-4 cm The distance between the lenses is 15 cm. calculate the position of the image from the first lens
The number density in a container of neon gas is 4.70×1025m?3. The atoms are moving with an rms speed of 640m/s. What is the pressure inside the container
The client also says that he does not remember any Section 1231 net losses on the prior-year returns. Illustrate what should Harold do? Why?
A copper wire is 6.00 m long and has a cross-sectional area of 2.00 10^-4 m2. what is the maximum torque that can act on it
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