Sin311.40 * 10 m 2x - vt4, pass through a slit 36.18 . parallel rays of monochromatic light with wavelength 36.10 cp light waves, for which the electric field is given by 568 nm illuminate two identical slits and produce an interfer- ence pattern on a screen that is 75.0 cm from the slits. the centers y max and produce the first dark bands at ±28.6° from the center of the diffraction pattern. (a) what is the frequency of this light? (b) how wide is the slit? (c) at which angles will other dark bands occur?

Which would not reduce the amount of green house gasses in the air

We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?