Answer:
18.2 s
Explanation:
Given:
Δx = 738 m
v₀ = 0 m/s
a = 4.44 m/s²
Find: t
Δx = v₀ t + ½ at²
738 m = (0 m/s) t + ½ (4.44 m/s²) t²
t = 18.2 s
So what you do is you use the formula shown below:
specific heat capacity = energy required / (mass * change in temperature)
here ,
energy required = 10.0°C Note that cal. is short form for °C
mass (m) = 3.1g
change in temperature (ΔT) = 17.9°C Note that "ΔT" means change in temperature
So, plugging the values into the formula, we get,
Specific heat capacity=
=
= 0.1802 cal./g°C <span>i rounded the answer to the fourth decimal point
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Answer:
The power consumed by air filter is 10.8W
Explanation:
Voltage V=120 V
Current I=2.0×10⁻³A
Turn ration of transformer=45:1
To find
The power consumed by the air filter
Solution
The power used by filter is
Substituting this result for power
The power consumed by air filter is 10.8W
<span>Gravitational force (weight) = (mass) times (acceleration of gravity).
On or near the surface of the Earth, the acceleration of gravity is
about 9.8 m/s².
Within that region . . . (500 newton) = (mass) x (9.8 m/s²)
Divide each side by 9.8m/s²: Mass = (500 newton) / (9.8 m/s²)
Mass = 51 kilogram (rounded)
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