karim

A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.2 m/s2. How much mass (ballast) must be thrown out to give the balloon an upward acceleration of magnitude 1.2 m/s2 (same magnitude but opposite direction)...

You pull a short refrigerator with a constant force across a greased (frictionless) floor, either with horizontal (case 1) or with tilted upward at an angle 38° (case 2). (a) What is the ratio of the refrigerator's speed in case 2 to its speed in case 1 i...

given the following data at a certain temperature, calculate K for the reaction between one mole of dinitrogen oxide gas and oxygen gas to give dinitrogen tetraoxide 2N2 + O2 TO GIVE 2N2 K=1.2X10-35 N2O4 TO GIVE 2NO2 K=4.6X10-3 1/2N2 + O2 TO GIVE NO2 K=4....

sin42=165/x

0.5 mol of salt (NaCl) is dissolved in 4.5 mol of water. What is the increase in entropy

3. Plot f(x) =ln(x) and f’(x) = 1/x in your calculator. Remembering that the derivative of f(x) is the instantaneous rate of change of f(x) why does it make sense that 1/x is the derivative of ln(x)?

Which of the following are the reactants (the substances used) in aerobic respiration? glucose and oxygen water and oxygen carbon dioxide and glucose oxygen and water

A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. If resisting forces are ignored, what is the acceleration of the basketball to the nearest m/s2?

thanks that helped me but can you give an example for all

Preciate it