Answer:
Horizontal component of velocity =1.7364m/s
Vertical component of velocity =9.848m/s
Explanation:
As the ball is a 2D projectile,it has two components.
Concept of components of a vector:
1)All the possible independent components of a vector sum up to give the vector.
2)If the magnitude of a vector is v,then its component in the direction at an angle of Θ from the vector is equal to - vcos(Θ).
Now as the ball is having 2D motion,it has two independent components one along the horizontal,one along the vertical.
Given angle of velocity with horizontal =°
Therefore angle of velocity with vertical °°
°
Therefore,
Component of Velocity along horizontal =
cos(80°)
Component of velocity along vertical =
cos(10°)
Therefore
Horizontal component of velocity of ball =1.7364m/s
Vertical component of velocity of ball =9.848m/s
The electric field across the plates is defined by
E = V / d .............. where V is the potential difference and d the distance that separates the plates.
E = 12 Volts/ 0.25 meters = 48 V/m
Answer:
because concave mirror is used in them.
hope it helps.
Answer:
Req = 50 Ω
Explanation:
The equivalent resistance is basically the sum of all the resistances in a circuit.
The sum of these resistances will depend whether these resistance are in series or parallel.
If the resistances are on series, the expression to use is:
R = R₁ + R₂ + R₃ + .......Rₙ (1)
If the resistances are on parallel then the expression to use is:
1/R = 1/R₁ + 1/R₂ + ........1/Rₙ (2)
Now, according to the picture, we have R₁ and R₄ in series, so here we have to use (1):
R₁₄ = 10 + 30 = 40 Ω
R₂ and R₃ are in parallel so we use (2):
1/R₂₃ = 1/20 + 1/20 = 2/20 = 1/10
R₂₃ = 10 Ω
Finally, R₁₄ and R₂₃ are in series (Because of the sum of the resistance in each side, they are now forming one resistance in each side), therefore, we use (1) again to get the equivalent resistance of the whole circuit:
Req = 10 + 40
<h2>
Req = 50 Ω</h2>
Hope this helps
We will all chaotically burn to death!
Hope this helps!!