Answer:
The answer to your question is 3.27 m
Explanation:
Data
q₁ = -40 x 10⁻⁶ C
q₂ = 108 x 10⁻⁶ C
F = 4 N
d = ?
K = 9.9 x 10⁹ N m²/C²
- Use Coulomb's law to solve this problem.
F = Kq₁q₂ / d²
- Solve for d²
d² = Kq₁q₂ / F
- Substitution
d² = 9.9 x 10⁹ (40 x 10⁻⁶)(108 x 10⁻⁶) / 4
- Simplification
d² = 42.768 / 4
d² = 10.692
- Result
d = √10.692
d = 3.27 m
Answer:
22510.8J
Explanation:
Given parameters:
Mass of lead = 4.68kg
Initial temperature = 25°C
Final temperature = 62°C
Unknown:
The heat needed to cause this temperature change = ?
Solution:
To solve this problem, we use the expression below:
H = m c Ф
H is the quantity of heat
m is the mass
c is the specific heat capacity
Ф is the temperature change
So;
Specific heat capacity of lead = 130J/kg°C
Insert the parameters and solve;
H = 4.68 x 130 x (62 - 25) = 22510.8J
P=mv
0.25v=0.05*500
v=100 m/s
Pretty fast...
Answer:
Cells
Explanation:
Non-living, it's atoms, but the smallest unit component that all living beings must have is the cell. In fact some living things can be just one cell. Every living being comes from cells, is made up of one or more cells, and cannot be considered a living organism without at least one.
i just had this question and i totally guessed. it was 2.2.
