Answer:
Your travel time will be 32.71 secs.
Step-by-step explanation:
Let the total distance be x feet.
Speed while walking = feet per second
Speed on the sidewalk = feet per second
Therefore, total speed while walking on moving sidewalk =
=
=
=
Hence, your travel time will be 32.71 secs.
Answer:
1248
Step-by-step explanation:
Surface are of a rectangular prism can be found using:
A=2(wl+hl+hw)
Plug in the given values of
l= 12m
w=12m
h=20m
to this equation and you get:
1248
Solution:
Let the three consecutive multiples of 4 be 4x, 4(x+1) and 4(x+2)
Then we can write
As 10/3 is not a multiple of 4. Hence no consecutive multiples are possible.
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The amount of heat lost by the water is 1870 calories
Step-by-step explanation:
The amount of heat released by a substance is given by the equation
where
Q is the amount of heat lost
m is the mass of the substance
C is the specific heat capacity of the substance
is its change in temperature
In this problem, we have:
m = 85 g is the mass of water
is the specific heat capacity of water
is the change in temperature of the water
Substituting, we find
Learn more about heat:
brainly.com/question/3032746
brainly.com/question/4759369
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