Q.2 :- right or wrong. if wrong write the correct statement:- 1.momentum is necessary to cause a change in force applied on an object

2.when net force f act for time t on an object , change in momentum produced in it is equal to ft.

3.when no external force is acting on the object momentum gets redistributed between the object during collision

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?

You have a resistor and a capacitor of unknown values. first, you charge the capacitor and discharge it through the resistor. by monitoring the capacitor voltage on an oscilloscope, you see that the voltage decays to half its initial value in 2.70 miss . you then use the resistor and capacitor to make a low-pass filter. what is the crossover frequency fc?

Describe cytokinesis in plants and animals. in animals: in plants.