Astraight segment of wire 35.0 cm long carrying a current of 2.60 a is in a uniform magnetic field. the segment makes an angle of 53∘ with the direction of the magnetic field. 1) if the force on the segment is 0.200 n, what is the magnitude of the magnetic field? (express your answer to three significant figures.)

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

Which lists the pairs of plates in order from least to greatest in terms of the work done to move the electron?