Nuclear reactions release energy used to heat steam which spins a turbine to generate electrical energy. Thus,
B. nuclear to thermal to mechanical to electrical
Assume that this is a direct current circuit.
V = IR
220 = I(1k)
I = .22 A
Answer:
300 nm
Explanation:
R = Gas constant = 8.314 J/molK
r = Atomic radii = 
d = Atomic diameter = 
At STP
T = Temperature = 273.15 K
P = Pressure = 100 kPa
= Avogadro's number = 
The mean free path is given by
The answer that best represents the mean free path for gas molecules is 300 nm
Answer:
Explanation:
Using the conservation of the linear momentum P:
so:
where 
is the mass of kevin, 
is the velocity of kevin before he grabs her brother, 
is the velocity of her brother and him after grabs her brother and 
is the velocity of both after the collition.
So, replacing the values and solving for Vk, we get:
Answer:
The force that you must exert on the balloon is 1.96 N
Explanation:
Given;
height of water, h = 4.00 cm = 4 x 10⁻² m
effective area, A = 50.0 cm² = 50 x 10⁻⁴ m²
density of water, ρ = 1 x 10³ kg/m³
Gauge pressure of the balloon is calculated as;
P = ρgh
where;
ρ is density of water
g is acceleration due to gravity
h is height of water
P = 1 x 10³ x 9.8 x 4 x 10⁻²
P = 392 N/m²
The force exerted on the balloon is calculated as;
F = PA
where;
P is pressure of the balloon
A is the effective area
F = 392 x 50 x 10⁻⁴
F = 1.96 N
Therefore, the force that you must exert on the balloon is 1.96 N
