Asolid weighs 80 gram in air, 64 gram in water and 75 gram in an oil. calculate:
a)the relative density of the solid

b)the relative density of the oil

c)weight of water displaced

d)upthrust in water

e)density of oil

f)loss of weight of object in water

g)apparent weight of object in water

h)upthrust in oil

i)weight of oil displaced

j)loss of weight of object in oil

k)volume of the object

l)density of object

Which statement about covalent bonds is true

1.in one challenge on the titan games, competitors have to lift 200 pounds up a long ramp. angel is able to move the weight in 42 seconds. anthony gets it done in only 38 seconds. which statement is true? angel has more power than anthony. angel does more work than anthony. anthony does more work than angel. anthony has more power than angel. 2.a mountain climber exerts 41,000 j of work to climb a cliff. how much power does the climber need if she wants to finish in only 500 seconds? power = work / time 20,500,000 watts 82 watts 0.0122 watts 41,500 watts 3.your family is moving to a new apartment. while lifting a box 83 joules of work is done to put the box on a truck, you exert an upward force of 75 n for 3 s. how much power is required to do this? (hint: you only need two of the 3 numbers given! ) power = work / time 249 watts 25 watts 2075 watts 27.7 watts

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block