A solenoid is available that has 100 loops in 2 cm of length with a supermalloy core, and the maximum current for the solenoid wire is 1A. What flux density is possible for this solenoid in air?

What will be an ideal response?


Physics & Space Science

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Slanting Surfaces Without Friction: A 7.5-kg stone moves up frictionless hill that slopes upward at 41° above the horizontal. If the stone has an initial velocity of 8.5 m/s at the bottom, how far (as measured along the surface of the hill) will it go before stopping?

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

The Kepler mission searches for Earth-like planets by looking for the dip in the brightness of a star as such a planet transited across it. Why does this technique actually miss the vast majority of planets?

What will be an ideal response?

Physics & Space Science

What device converts mechanical energy into electrical energy?

A) solenoid B) motor C) generator D) spectrometer E) transformer

Physics & Space Science

A radio wave transmits 4.8 W/m2 average power per unit area. What is the peak value of the associated magnetic field? (m0 = 4p × 10^-7 T×m/A and c = 3.00 × 10^8 m/s)

a. 1.0 × 10^-7 T c. 2.0 × 10^–7 T b. 8.4 × 10^-3 T d. 30 T

Physics & Space Science