Answer:
B. neutrons
Explanation:
When a free neutron hits the nucleus of a fissile atom like uranium-235 (235U), the uranium splits into two smaller atoms called fission fragments, plus more neutrons. Fission can be self-sustaining because it produces more neutrons with the speed required to cause new fissions. This creates the chain reaction.
Answer:
current would double
Explanation:
According To Ohm's Law, the current in a conducting wire depends on the voltage drop across the two ends of the wire. It can be expressed as:
I ∝ V
⇒ V = I R
where, R is the resistance and proportionality constant.
In the given case, the resistance of the circuit remains same while the voltage drop has increased to twice the initial value by changing the battery. This will the cause the current to double as well from its previous value.
The answer is 4.05 × 10³ kg
The density (D) is a quotient of mass (m) and volume (V) of a substance:
D = m/V
Step 1. Calculate the volume o
We have:
D = 2.70 × 10³ kg/m³
V = 1.50 m³
m = ?
D = m/V
m = D * V
m = 2.70 × 10³ kg/m³ × 1.50 m³ = 4.05 × 10³ kg
It would travel faster through a steel bar, because sound waves travel by vibrating molecules in a medium. In solids, these molecules are spaced closer together, causing sound to travel faster through it. so that means the second fastest medium is liquid and the slowest is gas