age 1 of 176
PHYS 250 ACTUAL EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS<LATEST VERSION>
A 100 g cube of ice at 0oC is dropped into 1.00 kg of water
that was originally at 80oC. What is the final temperature of
the water after the ice melts?
Select one:
a. 65oC
b. 32oC
c. 28oC
d. 0oC .......Answer.........a. 65oC
,age 2 of 176
Which of the following is the equation of motion of an oscillatory
system with a damping force, bv ?
Select one:
a. F = -bv
b. F = -kx+bv
c. F = -kx-bv
d. F = kx-bv .......Answer.........c. F = -kx-bv
What is the internal energy of 7.91 x 1022 gas molecules at a
temperature of 300 K?
Select one:
a. 164 J
b. 109 J
,age 3 of 176
c. 44.2 J
d. 492 J .......Answer.........d. 492 J
When a substance goes from a liquid state to a solid state, it
____________________.
Select one:
a. absorbs heat
b. releases heat
c. neither absorbs nor releases heat .......Answer.........b. releases
heat
Given the vectors 𝐶→=2𝑖̂ +7𝑗̂ →=2^+7�^ and 𝐷→=14𝑖̂
+38𝑗̂ �→=14�^+38�^, find the angle 𝜃� between them
Select one:
, age 4 of 176
a. 𝜃 = 86
b. 𝜃= 4∘
c. 𝜃 =0∘
d. 𝜃 = 10∘ .......Answer.........b. 𝜃= 4∘
A spider lowers herself on a single strand of silk at constant
speed. Taking into account air resistance, which of the following
must be true?
Select one:
a.The tension in the silk is zero.
b.The tension in the silk equals the spider's weight.
c.The tension in the silk is greater than the spider's weight.
PHYS 250 ACTUAL EXAM COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS || 100%
GUARANTEED PASS<LATEST VERSION>
A 100 g cube of ice at 0oC is dropped into 1.00 kg of water
that was originally at 80oC. What is the final temperature of
the water after the ice melts?
Select one:
a. 65oC
b. 32oC
c. 28oC
d. 0oC .......Answer.........a. 65oC
,age 2 of 176
Which of the following is the equation of motion of an oscillatory
system with a damping force, bv ?
Select one:
a. F = -bv
b. F = -kx+bv
c. F = -kx-bv
d. F = kx-bv .......Answer.........c. F = -kx-bv
What is the internal energy of 7.91 x 1022 gas molecules at a
temperature of 300 K?
Select one:
a. 164 J
b. 109 J
,age 3 of 176
c. 44.2 J
d. 492 J .......Answer.........d. 492 J
When a substance goes from a liquid state to a solid state, it
____________________.
Select one:
a. absorbs heat
b. releases heat
c. neither absorbs nor releases heat .......Answer.........b. releases
heat
Given the vectors 𝐶→=2𝑖̂ +7𝑗̂ →=2^+7�^ and 𝐷→=14𝑖̂
+38𝑗̂ �→=14�^+38�^, find the angle 𝜃� between them
Select one:
, age 4 of 176
a. 𝜃 = 86
b. 𝜃= 4∘
c. 𝜃 =0∘
d. 𝜃 = 10∘ .......Answer.........b. 𝜃= 4∘
A spider lowers herself on a single strand of silk at constant
speed. Taking into account air resistance, which of the following
must be true?
Select one:
a.The tension in the silk is zero.
b.The tension in the silk equals the spider's weight.
c.The tension in the silk is greater than the spider's weight.
