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An airplane has a mass of 27,500 kg and takes off under the influence of a constant net force of 41,000 N. What is the net force that acts on the plane's 83 kg pilot?
The refractive indices of materials A and B have a ratio of nA/nB = 1.66. What is the speed of light in material B
During an all-night cram session, a student heats up a (0.7 x 10-3 m3) glass (Pyrex) beaker of cold coffee.Initially, the temperature is 18°C, How much coffee(in cubic meters) has spilled out of the beaker
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
A gymnast falls from the high bar and lands on a 10 cm thick gymnastics mat. Estimate the peak acceleration of the gymnast's head
The engineer takes 0.400 seconds to react, and then applies the brakes. At what rate must the passenger train then decelerate in order to avoid a collision?
Three moles of an ideal gas undergo a reversible isothermal compression at 21.5°C. During this compression, 1870 J of work is done on the gas. What is the change of entropy of the gas?
A thin film of oil (n=1.24) is laying on a flat piece of glass (n=1.83). When viewed through air normal to the oil film, What is the minimum thickness of the oil film
for which real numbers x do the vectors x 1 1 1 1 x 1 1 1 1 x 1 1 1 1 xnot form a basis of r4 ? for each of the values
A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 607 nm. Determine the angle that locates the first dark fringe when the width of the slit is (a) 4.1 x 10-4 m and (b) 4.1 x 10-6 m.
A block with a mass m1 = 1.5 kg is pushed by a mass m2 = 1 kg against a spring with a force constant of k = 750Nm^-1. What is the period of the motion initially
A circular saw blade of diameter 0.175m starts from rest. In a time interval of 6.05s it accelerates with constant angular acceleration to an angular velocity of 130 rad/s. Find the angle through which the blade has turned
a fighter plan flying at 378 ms at an altitude of 160 m during a training mission releases a projectile when he starts
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