# Posts by bharat

Total # Posts: 11

math
mathsquiz Q-1 (B) 25

physics
A train moving with speed 72 km h−1 emits a whistle of frequency 600 Hz. A person is standing stationary on the platform. Calculate the frequency heard by the person if the train (i) approaches and (ii) recedes away from the listener.

Dav public school
Alcohols are weaker acids then water,why ?

math
325

Physics
What is the direction of force of friction on a bicycle on front and back wheel while paddling?

science
is it possible to convert the clouds to rain with the help of powerful fans

Math
to find the total area under sq.feet

physics
100n

biology
because they prepare their food in presence of light

stattistics
The p-chart is based on the assumption that the number of defective units in each sample is a binomial random variable. Choose one answer. A. True B. False

chemical equilibrium
if the pressure of n2/h2 in aclosed apparatus is 100 atm and 20 percent of the mixture then react ,the pressure at the same temperature would be

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