005 (part 1 of 2) 10.0 points An air puck of mass 0.030 kg is tied to a string and allowed to revolve in a circle of radius 1.4 m on a frictionless horizontal surface. The other end of the string passes through a hole in the center of the surface, and a mass of 1.3 kg is tied to it, as shown. The suspended mass remains in equilibrium while the puck revolves on the surface. 1.4 m 1.3 kg 0.03 kg What is the magnitude of the force that maintains circular motion acting on the puck? The acceleration due to gravity is 9.81 m/s 2 . Answer in units of N. 006 (part 2 of 2) 10.0 points What is the linear speed of the puck? Answer in units of m/s.
Answers: 3
Physics, 22.06.2019 10:30, dontcareanyonemo
Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?
Answers: 1
Physics, 22.06.2019 12:20, drewefielder6198
Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.
Answers: 2
Physics, 22.06.2019 21:10, reinasuarez964
Which of the following is a measure of the amount of light a star directly emits? a. luminosity b. intensity c. wavelength d. brightness
Answers: 2
Physics, 22.06.2019 22:40, taniyahreggienae
Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages
Answers: 2
005 (part 1 of 2) 10.0 points An air puck of mass 0.030 kg is tied to a string and allowed to revolv...
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