Answer:
13.4 m/s
Explanation:
Given:
Δx = 12 m
v₀ = 0 m/s
a = 7.5 m/s²
Find: v
v² = v₀² + 2aΔx
v² = (0 m/s)² + 2 (7.5 m/s²) (12 m)
v ≈ 13.4 m/s
Answer:
8377 turns
Explanation:
Given:
Mean radius of toroid = 26 cm
Circular cross-section radius, r = 1.9 cm = 0.019
Length of the wire, l = 1000 m
The number of turns (n) on the coil is given by

where,
l is the length of the wire
s is the circumference of the circular wire
⇒
or

or
n = 8376.57 or 8377 turns
hence, the number of turns on the coils is 8377
Answer:
The value is 
Explanation:
From the question we are told that
The mass of the Ping-Pong is 
The terminal speed is 
The drag force is 
Generally the resultant force on the Ping- Pong is mathematically represented as

when terminal velocity is attained , the resultant force is zero so

=> 
=> 
=> 
Answer:
6666.67 Newtons
Explanation:
The formula F=ma (force is equal to mass multiplied by acceleration) can be used to calculate the answer to this question.
In this case:
- mass= 0.1mg= 1*10^-7 kg
- velocity= 4.00*10^3 m/s
- time= 6.00*10^-8 s
Using velocity and time, acceleration can be calculated as:
Substituting these values into the formula F=ma, the answer is:
- F= (1*10^-7)kg * (6.667*10^10) m/s²
- F= 6666.67 Newtons of force