Answer:
The magnetic field at a distance x = 5 m is 1.59 nT
Explanation:
Length of the wire, L = 2 cm = 0.02 m
Current, I = 20 A
x = 5 m
Magnetic field at a distance x = 5 m due to an infinitely long wire is given by:
An object with a mass of 300 kg is
2 answers:
Answer: F = 1200 N
Explanation:
Hey there!
It is given that,
Mass of the object, m = 300 kg
Acceleration of the object when it is moving,
If F is the force required to produce this acceleration. It is given by using the second law of motion as :
<u>Calculations</u>
F = m × a
F = 300 kg ×
F = 1200 N
<em>So, the force required to produce this acceleration is 1200 N. Hence, this is the required solution.</em>
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<em>~I hope I helped you! :)~</em>
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Answer:
The value of impulse of the net force on the ball during its collision with wall is
The value of average horizontal force that the wall exerts on the ball during the impact is F = 15000 N
Explanation:
Mass of the ball = 0.5 kg
Horizontal velocity = 20
Velocity after collision = - 10
(A). Impulse of the net force on the ball during its collision with wall is
I = 0.5 × (20 + 10)
This is the value of impulse of the net force on the ball during its collision with wall.
(B). The magnitude of average horizontal force
Where F = Force
I = impulse & t = time interval = 0.001 sec
F = 15000 N
This is the value of average horizontal force that the wall exerts on the ball during the impact.
Answer:
Height, H = 25.04 meters
Explanation:
Initially the ball is at rest, u = 0
Time taken to fall to the ground, t = 2.261 s
Let H is the height from which the ball is released. It can be calculated using the second equation of motion as :
Here, a = g
H = 25.04 meters
So, the ball is released form a height of 25.04 meters. Hence, this is the required solution.
Answer:
She would travel 175.5 m in the same amount of time
Explanation:
Here is the complete question:
Seven bicyclist are racing. Each bicyclist rides for 9s. If a bicyclist, with initial velocity of zero, steadily gained speed until reaching a final velocity of 39m/s, how far would she travel during the race in the same amount of time)?
Explanation:
To determine how far she would travel in the same amount of time, that is the distance she would cover in the same amount of time
From the question,
The bicyclist has an initial velocity of zero
That is, u = 0 m/s
and a final velocity of 39 m/s
That is, v = 39 m/s
Each bicyclist rides for 9s,
She also traveled for the same amount of time
that is, t = 9s
To determine the distance,
From one of the equations of motion for linear motion
s = t(u + v)
Then
s = (9)(0+39)
s = 4.5 (39)
s = 175.5 m
Hence, she would travel 175.5 m in the same amount of time