photons per second If a low-pressure sodium vapor lamp emits 50 W of yellow light, how many photons does it emit each second? Please show solution
converting units and ratio problem The single proton that forms the nucleus of the H atom has a radius of approximately 1.0 x 10^-13 cm. The H atom itself has a radius of approximately 52.0 pm. What fraction of the space within the atom is occupied by the nucleu? first convert 52.9 pm to cm […]
AC CIRCUIT PROBLEM!!! PLEASE HELP!!! A voltage ?v = (110 V) sin ?t (in SI units) is applied across a series combination of a 2.06 H inductor, a 14.6 ÂľF capacitor, and a 10.3 O resistor. a) Determine the angular frequency, ?0 at which the power delivered to the resistor is a maximum. b) Calculate […]
–Wave Properties of Light ?Electro-magnetic waves of a single wavelength pass through a double slit with a separation of 4.50 mm. When a screen is placed parallel to the double slit and 1.70 m away from the screen, the two 1st order bright fringes on either side of the central maximum appear directly opposite both […]
standing waves and resonances a string which has a mass of .5kg and a length of 3.0 meters, is clamped on both ends if the tension in the string is 25 newtons what are the lowest 3 natural frequencies? For each case, include a sketch of the standing wave pattern.
3 a) Explain the importance of comments in programming and outline how this is achieved in java (3..
3 a) Explain the importance of comments in programming and outline how this is achieved in java (3.. 3 a) Explain the importance of comments in programming and outline how this is achieved in java (3 mks) b) Explain the following components of an object and give an example in each case i. Field variables […]
Calculate the magnitude of the torque acting about the origin on the particle. A particle of mass 2kg located at the position vector r = (3?2)/2 (ˆi – ˆj) has an acceleration a = 5/3(2ˆi + 2ˆj + kˆ) acting on it where the unit of r is the meter the units of acceleration are […]
UPU 0004 HUMANITIES – MARKING RUBRIC FOR RESEARCH ESSAY: UPU 0004 HUMANITIES – MARKING RUBRIC FOR RESEARCH ESSAY: Criteria N – Fail (0 – 4.5) C –P ass (5 – 5.5) Cr – Credit (6 – 6.5) D – Distinction (7 – 7.5) HD – High Distinction (8 – 10) ESSAY CONSTRUCTION Synopsis does not […]
Can a leader change an organization’s culture from toxic to ethical? Why or why not? Can a leader change an organization’s culture from toxic to ethical? Why or why not?
Need help with this one Calculate the pH of a solution that is 2.00 M HF, 1.00 M NaOH, and 0.653 M NaF. (Ka = 7.2 10â4) Choose one answer. A. 3.14 B. 3.36 C. 2.66 D. 2.92 E. none of these