109. A car of mass 1000kg moves at a constant speed of 20m/sec along a horizenta road where frictional force is 200N. The power developed by the engine is, is nila a) 10000 watt 2012 b) 4000 kilo watt 2010 ( c) 4000N. m/sec 18 bhow and) me 2000 watt collect 110. The value of universal gravitional constant Gis:

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.