The bicycle will move towards left with the net force of 10N
Answer:
<h3>16,071.42J/kgK</h3>
Explanation:
The formula for expressing the quantity of heat released is expressed as;
Q = mcΔt
m is the mass of the substance = 100g - 0.1kg
c is the specific heat capacity of the substance
Δt is the change in temperature = 13 -(-15) = 28°C
Substitute and get c;
45000 = 0.1c(28)
2.8c = 45000
c = 45000/2.8
c = 16,071.42J/kgK
Hence the specific heat capacity of the substance is 16,071.42J/kgK
When the reactants are heated, the average kinetic energy of the molecules increases. This means that more molecules are moving faster and hitting each other with more energy. If more molecules hit each other with enough energy to react, then the rate of the reaction increases.
Answer:
L = 6.032 m
Explanation:
The resistance of a wire is given by
R = ρ L / A
done ρ is the resistivity of matter, L is the length and A is the area
L = R A /ρ
the area of a circle is
A = π r² = π d² / 4
L = R π d² / 4ρ
in the problem they indicate the resistance of 240 Ω, the diameter of 0.040 mm and the resistivity of 5 10⁻⁷ Ω / m
Let's reduce the diameter to SI units
d = 0.040 mm (1 m / 1000 mm) = 4 10⁻⁵ m
let's calculate
L = 240 π (4 10⁻⁵) 2 / (4 5 10⁻⁷)
L = 6.0319 m
L = 6.032 m
True because school doesn't dictate what job you want in the future
