Ineed i need to pass this test
metals are ductile. this allows them to
que...
Physics, 30.09.2019 07:30 cluchmasters5634
Ineed i need to pass this test
metals are ductile. this allows them to
question 4 options:
a. be pulled into long wires
b. conduct electricity
c. melt quickly
d. be used to cover floors
carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. these different forms of the same element are
question 5 options:
a. radioactive
b. isotopes
c. nuclei
d. tracers
which of these statements is not true?
question 6 options:
a. molecules arc made up of atoms.
b. protons are smaller than quarks.
c. atoms are larger than protons.
d. protons are made up of quarks.
the difference between fission and fusion is
question 7 options:
a. fusion is the splitting of a nucleus
b. fission is the joining of two nuclei
c. fission is the splitting of a nucleus
d. there is not a difference
the vertical columns on a periodic table are known as the periods and the horizontal rows are known as groups.
question 8 options:
true
false
all of the following are examples of radioactive decay except which of the following
question 10 options:
a. alpha
b. gamma
c. deka
d. beta
Answers: 2
Physics, 21.06.2019 22:00
1. consider the case in which air fills air shocks on a truck trailer. the pressure in the shocks is 2 mpa. the temperature is 300 k. the diameter of the shock piston is 10 cm and the initial length of the cylindrical cavity containing the compressed air is 40 cm. a. the truck is gradually loaded over a period of a day in a static setting. the temperature is held constant for the atmosphere and thus for the gas shock. calculate the compressibility of the air in the shock for this condition when the truck is initially being loaded. b. if the shocks were loaded in a dynamic setting by driving over bumps, what would be the compressibility? state your assumption. c. what is the initial load on the shock if the shock is in an atmospheric 100 kpa? d. if the shock is compressed using the process described in part a, and the air shock compressed air cavity length decreases to 20 cm, what is the additional load applied to the shock?
Answers: 2
Physics, 22.06.2019 07:30
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
Physics, 22.06.2019 11:30
Acaterpillar tries to climb straight up a wall a meter high, but for every 2 cm up it climbs, it slides down 1 cm. eventually, it reaches the top. when it reaches the top, it does not pull itself over so it will slide down 1 cm. what is the total displacement traveled?
Answers: 3
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