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the mass of a pencil sitting on your desk about .25 meters from you is .006 kg. the mass of a typical teenager or young adult is 55 kg. what is the attractive force between them? (fg = g (m1 m2)/d2 where g = 6.67 x 10-11 n m2/kg2 )
show your work.
you!

Why is metal often used for cooking pan?

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k