5. Mick is a 185 lb snowboarder. His snowboard weighs67 N. What is the combined weight of Mick and hissnowboard?

Q: Is it necessary that that every black coloured objects should be considered a blackbody?

A: A perfect black body is a body that absorbs all the radiation that falls on it.

Q: If air is a bad conductor of heat, why do we not feel warm without clothes?

A: Air is a bad conductor of heat because molecules are not close together as in solids. Thus, heat tra...

Q: Is the temperature of body falls through 1 degree C , what will be the change on Kelvin scale?

A: The below temperature limit is absolute temperature (0 K or -273o C). Above this limit, the temperat...

Q: How an ice box or refrigerator keep things cold for a long time?

A: Refrigerator works based on the principle heat is taken from the source at a higher temperature and ...

Q: Second: Motion of the fired bomb:The tank is to be placed on a hill that is 2 km high above the grou...

A: (b) The bomb is launched horizontally, so initial vertical velocity is zero.Write the kinematic expr...

Q: A passenger jet flies at a constant speed from one airport to another 1,500 miles away in 3.5 hours....

A: The expression for speed of the jet flies from one airport to another is,

Q: 1 mole of a monoatomic gas is mixed with 3 moles of a diatomic gas. What is the molecular specific h...

A: The specific heat of a monoatomic gas is given by

Q: Why can water be boiled in paper cup?

A: Step 1Water can be boiled in paper cup without burning the paper cup.

Q: The temperature of a gas sample is increased. Why does its pressure increase?

A: The ldeal gas law is given by