A standing wave has the following wave-function: y(x. t) = 0.2 sin(310) cos(127). where x and y are in meters, and t is in seconds. If the length of the string is L=2
mand it is fixed at both ends, then the harmonic, n, in which the string is
vibrating is
OS
On
On
2
On4​

Current enters a circuit at a: 1.positive terminal 2.negative terminal 3.low potential side 4.resistor

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Calculate the work done by an external agent during an isothermal compression of 1.00 mol of oxygen from a volume of 22.4 l at 10∘c and 1.0 atm pressure to 16.8l