Answer:
(A) 111.77m
(B) 9.07m
(C)55.88m/s
(D)20.54m/s
Explanation:
step 1 " we have to calculate the time it took the projectile to get to its maximum height
(a) t = usinθ/g
= 49sin 33/9.81
49×0.5446/9.81
=2.72s
the horizontal distance = ucosθ×t , because the projectile horizontal motion is unaffected by the force of graavity
= 49cos33 ×2.72
=111.77m
(B) with the same projectile fired the same way , the horizontal distance = 55.8m
55.8 = ucosθ×t
55.8 = 49cos33 ×t
t = 55.8/49cos33
t= 1.36s
height of the projectile = 1/2 ×g×t²
=1/2 ×9.81×1.36²
= 9.07m
(c) Velocity of the projectile when it hits the wall
V₀ = ucosθ×t
49cos 33 × 1.36
=55.88 m/s
(D) speed = distance / time
distance /2×t ; total time of flight
= 55.88/ 2.72
=20.54m/s
Answer:F/L = μ0*I²/2πd
Explanation:
Both wires carries current of the value (I) and are separated by the distance (d).
The length of both wires is (L).
The first wire creates a magnetic field of the magnitude according to Bio-savart law
B=(Uo * I)/2πd
This magnetic field has the ability to exert a force F on the second wire.
This force (F) is given as
F=BIL* sin θ
θ here is 90 because the magnetic field is perpendicular to the length of the second wire.
Thus the value of sin 90 = 1
Hence F= BIL
But B=(Uo * I)/2πd.
We have that F= B=[(Uo * I)/2πd] x IL
Thus we have that F= [Uo* I²/2πd] x L
By rearranging, and bringing L to the left hand side of the equation, we have that
F/L = [Uo* I²/2πd]
Yo I wish I was at higheschool and I think the last one is darker or the same cause of the reflection
Pendulum under goes energy conversions from potential to kinetic and back to potential.
A pendulum consists of a long string to which a bulb is attached. The string is fastened to a point from which it can oscillate freely when displaced through a small angle.
The pendulum is an example of a system in which energy conversion takes place. The energy is converted from potential to kinetic and back to potential. Since the image was not shown in the question, we can not locate the specific points where the energy conversions occur.
Learn more: brainly.com/question/14759840
Answer:
The value is 
Explanation:
From the question we are told that
The distance of the speaker from the second speaker to the east is 
The distance of the speaker from the listener to the south is 
Generally given that if the speaker move in any direction, their sound become louder , it then mean that the position of the listener of minimum sound (i.e a position of minima ) ,
Generally the path difference of the sound produce by both speaker at a position of minima is mathematically represented as
Generally considering the orientation of the speakers and applying Pythagoras theorem we see that distance from the second speaker to the listener is mathematically represented as
=> 
=> 
Generally the path difference between the two speaker with respect to the listener is
=> 
=> 
So
=>
