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Question: A helicopter is lifting two crates simultaneously. One crate with a mass of 289 kg is attached to the helicopter by a cable. The second crate with a mass of 103 kg is hanging below the first crate and attached to the first crate by a cable. As the helicopter accelerates upward at a rate of 1.41 m/s2, what is the tension in each of the two cables. Enter T1, the upper crate first. Then enter T2.
An old bone sample contains 321. grams of carbon and its activity is 947. decays/min. (5730. yr half life of Carbon-14). How many thousand years old is the sample?
underwater remotely operated vehicles are used to check underwater pipelines and structures such as gas platforms. they
In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 16m/s at an angle of 38 degrees above the horizontal. How high is the ball when it hits the wall
two positive point charges q1 16 micro coulombs and q2 4 micro coulombs are seperated in a line by a distance of 3
The Internal energy E(T) of a system at a fixed volume is found to depend on the temperature T as E(T) = aT2 + bT4. Then the entropy S(T), as a function of temperature would be?
A mass hung on a string that is wrapped around an axle on a wheel produces a tension in the string of 5.65 N. The axle has a radius of 0.045 m. What is the angular acceleration of the system
carpet is to be laid in a room that is in the form of acircular sector with a central angle of 105o. if thelength
A coaxial capacitor of length l = 6 cm uses an insulating dielectric material with r = 9. The radii of the cylindrical conductors are 0.5 cm and 1 cm.
why the mass of the dishwater is large enough. If vector B is added to C = 2.0 ihat + 3.0 jhat, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of C. What is the magnitude of vector B.
A diffraction grating is 2.40 cm wide and contains 2000 lines, when used with light of a certain wavelength; a third-order maximum is formed at an angle of 16.0°. What is the wavelength
The escape speed of a particular planet with a radius of 8.600e+6 m is 14,500 m/s. What is the mass of the planet
Ultraviolet light is shone on a particular metal and the stopping potential is measured at the same time. What is the work function of the metal
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