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Small airplane A is flying through a mature isolated air mass thunderstorm at a height of 5 km, while small airplane B is flying at 2 km through the same mature isolated air mass thunderstorm. Discuss any dangers each of these two airplanes might face, and contrast any differences in the dangers.
Assume blue light (λ=500 nm) is used to decide the position of an electron to within the wavelength of the light. What will be the uncertainty in the electron’s velocity?
A circular coil with one turn is in a perpendicular (timedependent) magnetic field given by B = 0.400 -0.0800 t Tesla, where time t is in seconds. Calculate the radius of the coil
a tennis ball with a speed of 11.3 ms is thrown perpendicularly at a wall. after striking the wall the ball rebounds in
A bumper car with mass m1 = 109.0 kg is moving to the right with a velocity of v1 = 4.9 m/s. A second bumper car with mass m2 = 84.0 kg is moving to the left with a velocity of v2 = -3.6 m/s. The two cars have an elastic collision. Assume the surf..
A 668-kg elevator starts from rest and moves upward for 4.30 s with constant acceleration until it reaches its cruising speed, 1.65m/s. What is the average power of the elevator motor
A molecule of DNA (deoxyribonucleic acid) is 2.35 µm long. The ends of the molecule become singly ionized: negative on one end, positive on the other. Determine the effective spring constant of the molecule
The index was 174.0 in July 2001, with base year 1982. Calculate what the index was in July 2000 and June 2001, with base year 1982.
Electrons are trapped in a well whose effective mass is very different from that of the barriers. What happens to the boundary condition at the heterojunction?
A certain corner of a room is selected as the origin of a rectangular coordinate system. If a fly is crawling on an adjacent wall at a point having coordinates (2.0, 1.0), where the units are meters, what is the distance of the fly from the corner of..
A hydrogen atom is in its ground state when its electron absorbs a 48 keV photon. What's the energy of the resulting free electron
A golf ball is dropped from rest from a height of 8.10 m. It hits the pavement, then bounces back up, rising just 5.60 m before falling back down again. calculate the total amount of time that the ball is in the air
A rope is used to pull a 6.18 kg block at constant speed 2.08 m along a horizontal floor. The force on the block from the rope is 5.70 N and directed 13.6° above the horizontal. What are the work done by the rope's force, the increase in thermal ener..
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