Answer:
a ave = ( v1x - v0x ) i/Δt + v1y j/Δt
Explanation:
Answer:
E=0.284 N/C
Explanation:
Given that
Distance ,d= 1.3 cm = 0.013 m
Time ,t
Initial velocity of electron u=0 m/s
We know that
We know that
mass of electron,m
Charge on electron
F= m a=E q
So
E=0.284 N/C
Electric field will be 0.284 N/C.
Answer:
Distance,
Explanation:
It is given that,
Charge,
Area of the parallel plate capacitor,
We need to find the distance between the plates. Let it is equal to d. The capacitance of the parallel plates capacitor is given by :
k = relative permittivity, for air k = 1
So, the distance between plates is . Hence, this is the required solution.
Newton's 2nd law of motion: Force = (mass) x (acceleration)
Divide each side by (mass) : Acceleration = (force) / (mass)
Acceleration of the truck = (4,200 N) / (2,000 kg) = 2.1 m/s²
Answer:
ΔL = 1.2 10⁻³ m
Explanation:
The expression for thermal expansion is
ΔL = α L₀ ΔT
in this case it indicates that the length is L₀ = 5 m for T₀ = 20C the final temperature is T_f = 40 C
the table shows the value of thermal expansion for steel α = 12 10⁻⁶ C⁻¹
let's calculate
ΔL = 12 10⁻⁶ 5 (40 -20)
ΔL = 1.2 10⁻³ m