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A loud-speaker consists of a cone attached to a current-carrying coil located in a magnetic field. Describe exactly how this system works to deliver sound of a particular frequency (matching the music)...

I am curious as to whether or not the 14.7 pounds of external air pressure or air molecules interconnect from our heads to feet to ground,and our internal resistance works together with the outside...

I am curious as to whether or not the 14.7 pounds of external air pressure or air molecules interconnect from our heads to feet to ground,and our internal resistance works together with the outside...

A 60 kg block slides along the top of a 100 kg block with an acceleration of 2.0 m/s2 when a horizontal force F of 315 N is applied. The 100 kg block sits on a horizontal frictionless surface, but...

A track and field athlete, running on a circular track, completed 15 laps around the track in a total time of 5.3 min. Determine the angular velocity of the athlete.   If the athlete...

A 4.0 cm object is 6.0 cm from a convex mirror that has a focal length of 8.0 cm. What is the height of the image produced by the mirror?

Statement : a man slides down the rope with a deceleration a relative to the rope. Acceleration of man with respect it rope is taken as +a and not - a Why is it so, why should we not...

here is the full question: A baseball is hit with a bat. The direction of the ball is completely reversed and its speed is doubled. If the actual contact with the bat lasts what is the ratio of the...

Here is the full question: A girl is a passenger aboard a moving train. The girl has a toy wind-up car that she lets travel down the aisle of the train. From experience, the girl knows that the wind-up...

Please help me understand how to formulate this question and why. The math isn't hard but understand how you set it up is. Thank you in advance

an object with mass m has R distance from the center of the earth. if R=2m, what is the difference between R=2m and 2R?

When a circular loop enters a uniform magnetic field perpendicular to its plane with uniform velocity, how is the variation of induced EMF with time?

In a generator (AC or DC), what happens if we use a radial magnetic field, does the induced current become purely DC? If so, is it in use anywhere?

Testing shows that a sample of wood from an artifact contains 50% of the original amount of carbon-14. Given that the half-life of carbon-14 is 5730 years, how old is the artifact? \l "\l...

Which of the following accurately states the claim made by special relativity? \l "\l " A. The speed of light in a vacuum is the same for stationary frames of reference. \l...