At a certain location, the earth's magnetic field has a magnitude of 5.7×10−5 t and points in a direction that is 73 ∘ below the horizontal. part a find the magnitude of the magnetic flux through the top of a desk at this location that measures 81 cm by 85 cm

1.15 * 10^(-5) Tm²

Explanation:

Parameters given:

Magnitude of magnetic field, B = 5.7 * 10^(-5) T

Angle of magnetic field to the horizontal plane = 73°

Dimension of the desk = 81 cm × 85 cm

Area of desk, A = 6885 cm² = 0.6885 m²

The magnitude of the Magnetic Flux, |Φ|, is given as:

|Φ| = |B * A * cosθ|

Where θ = angle of the Magnetic field to the normal of the desk = 90 - 73 = 17°

Therefore, the magnitude of the Magnetic Flux will be:

|Φ| = |5.7 * 10^(-5) * 0.6885 * cos17|

|Φ| = 3.75 * 10^(-5) Tm²

explanation:

earth's surface is mainly heated by the absorption of infrared radiation from the sun.

evaporation occurs because molecules in liquid water are warmed ( usually by the sun) and vibrate quicker, becoming less dense and rise.

condensation occurs because molecules in water vapor are cooled and therefore vibrate more slowly thus becoming more dense and eventually fall to earth.

lines of equal barometric pressure on a weather map are called: isobars : lines of equal temp on a weather map are called: isotherms.​