Gaya 7,5 dikerjakan pada masa sebesar 3 kg sehingga kelajuannya berubah dari 65 cm/s menjadi 15 m/s maka waktu yang dibutuhkan adalah
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m = 3kg
F=m.a
7,5=3.a
a=7,5/3
a=2,5 m/s^2
Vo = 65cm/s -> 0,65m/s
Vt = 15m/s
t..?
Vt=Vo+a.t
15 = 0,65 + 2,5.t
14,35=2,5.t
t=5,74 secon
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and if you take fewer, you will have less calories, so less energy.
Final answer:
False. A negative energy balance happens when you eat fewer calories than needed and expend more energy, leading to weight loss. A positive energy balance happens when you eat more calories than needed and expend less energy, leading to weight gain.
Explanation:
False. Energy balance refers to the relationship between the energy you take in from foods and the energy you expend in daily activities. Negative energy balance occurs when the energy you expend is more than the energy you take in (fewer calories eaten than needed), leading to weight loss. Conversely, a positive energy balance happens when you consume more energy than you expend (more calories eaten than needed), resulting in weight gain.
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↑ ↑ ↑ Hope this helps! :D
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Answer:
17.23L
Explanation:
The table lists pressure and volume values for a particular gas. Which is the best estimate for the value of V at P = 7.0 × 103 pascals?
P (pascals) V (liters) 1/v
1. 5.0 × 10^3 6.0 0.16
2. 1.5 × 10^4 3.0 0.33
3. 2.0 × 10^4 2.0 0.5
4. 2.5 × 10^4 1.5 0.66
if we are to plot the above data in a linear graph, the equation of a line graph below can be used
y-y1=m(x-x1)
y-y1=(x-x1)..............1
from the ideal gas law
pressure is inversely proportional to volume as nRT is the constant of proportionality
PV=nRT
P=nRT/V
from equation 1
let y1= 1.5 × 10^4
y2= 2.0 × 10^4
x1=0.33
x2= 0.5
y-1.5x10^4=2.0 × 10^4-1.5 × 10^4 /(0.5-.33)(x-0.33)
y-1.5x10^4=29411(x-0.33)
y=15000-9705.88+29411x
y=5294+29411x
at 7*10^3
7*10^3=5294+29411x
x=0.058
recall that x=1/V
inverse of both sides gives volume to be
V=17.23L
I think the question need to use extrapolation. FInd the linear function of the first and second data. And then, the anwser is 5.4 liters.
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and Sun, plus the mutual gravitational forces of attraction between
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