- our words on here I Electric Circuít Grounding/Discharg Telectricity Battery Voltmeter Electron usulator Ammeter Load 2. State the "Law of Attraction and Repulsion" (Law of Electrostatics).
- 2. A sample of carbon dioxide is placed in a piston. The initial temperature of the gas is 35^circ C and it occupies a volume of 2.2 L . Calculate the temperature at which it will occupy 4.4 L . Pressure and the amount of gas remain constant. [ans: 620K]
- This graph describes Mina's displacement from her house during a walk on a straight path. What is the average velocity on the interval 4<t<18 4leqslant tleqslant 18 800. Displacement (m) 700 800 500 400 300 200 100 Time (min) n 12
- 2. Convert the following temperatures to degrees Celsius or kelvins as required: k/u (a) A flame from a match can have temperatures in the range of 1700 K. (b) A household incandescent light bulb has a tungsten filament that can reach over 2327^circ C (c) Helium becomes a liquia below -268^circ C his (d) Oxygen was first made into a solid at a temperature near 54 K.
- (a) Barney drops a 5.0 kg rock from a height of 92 om.How much energy does the rock have when it is 40 m from the ground? (b) How fast is the rock traveling at this point?
