Why must you bend forward when carrying a heavy load on your back?

As you throw a heavy ball upward, is there any change in the normal force on your feet?

A compass needle is placed near a current - carrying straight wire . State your observation when the current in the wire is increased . Give reason .

K_(f) for waer is 1.86 K kg mol^(-1) . If your automobile radiator holds 1.0 kg of water, how many grams of ethylene glycol (C_(2)H_(6)O_(2)) must you add to get the freezing point of the solution lowered to -2.8^(@)C ?

If you could use any source of energy for heating your food, which one would you use and why ?

State Newton's first law of motion, Passengers are jerked forward when a moving bus stops suddenly. Explain why.

Discuss with your friends about the following conditions: What can you say about cot 0^(@) =(1)/( tan 0^(@) ) Is it defined ? Why ?

Discuss with your friends about the following conditions: What can you say about cosec 0^(@) =(1)/( sin 0^(@) ) ? Is the defined ? Why ?

Check whether''Or'' used in the following compound statement is exclusive or inclusive? Write the component statements of the compound statements and use them to check whether the compound statement is true or not. Justify your answer. t: you are wet when it rains or you are in a river.