We connect an ohmic conductor of resistance R = 10 homs to the terminals of a battery G of fem. E = 9.0 V and internal resistance r = 2.0 N. A current of intensity I then flows in the circuit. a) Make a diagram and specify the direction of the current. b) Calculate I. c) A shunt connection is connected to the terminals of R, an ohmic conductor of resistance R2 = 30 N. C.1) Calculate the new value l ’of the current intensity in the circuit. 0.2) Calculate the values, I1 and I2 of the intensities of the currents flowing respectively through R1 and R₂

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. what is another name of the type of wave that transfers energy in this way?

Amachine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. its acceleration is measured to have an amplitude of 5,000 mm/s with a fre- quency of 10 hz. compute the maximum displacement the machine undergoes during this oscillation.

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?