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0.40-kg mass attached to the end of a string swings in a vertical circle having a radius of 1.8 m. At an instant when the string makes an angle of 40 degrees below the horizontal, the speed of the mass is 5.0 m/s. What is the magnitude of the tension in the string at this instant?
a. 9.5 N
b. 3.0 N
c. 8.1 N
d. 5.6 N
e. 4.7 N
A flywheel with a radius of 0.300m starts from rest and accelerates with a constant angular acceleration of 0.600rad/s2. Compute the magnitude of the tangential acceleration
A planet of mass m = 7.05 × 1024 kg is orbiting in a circular path a star of mass M = 4.95 × 1029 kg. The radius of the orbit is R = 8.35 × 107 km
1. Discuss the meaning of 'race' and its relationship to contemporary identities. 2. Discuss the social construction of youth and its consequences for young people's identities and cultural practices.
q1.a 1800-kg jeep travels along a straight 500-m portion of highway from a to b at a constant speed of 10 ms. at b the
Assume that there is an announcement of a fantastic process capable of putting the contents of physics library on a very smooth postcard. Will it be readable with an electron microscope? Explain.
A swimmer climbs onto an 11.6-kg Styrofoam float (density 158 kg/m3). The top of the float ends up just at the water surface. What's the swimmer's mass?
You work for Wham-O! Computer Inc. in its product testing department. Find the laptop velocity right before it hits the floor
Two 1.70 centimeter diameter disks spaced 1.80 millimeter apart from a parallel-plate capacitor. Determine the voltage across the capacitor
The average Xe - F bond energy is 34 kcal/mol, first I.E. of Xe is 279 kcal/mol, electron affinity of F is 85 kcal/ mol and bond dissociation energy of F2 is 38 kcal/mol.
A wind turbine is initially spinning at a constant angular speed. As the wind's strength gradually increases, What is the initial angular velocity of the turbine
Imagine removing one electron from every atom in a tiny cube of gold 1 mm on a side. (Never mind how you would hold the resulting positively charged cube together.) Do the same thing with another such cube a meter away.
Two periodic waves interfere somehow. Both waves have the same frequency and wavelength. what is the range of amplitue of the resulting wave
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