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Svetradugi [14.3K]
3 years ago
8

A zebra starts from rest and accelerates at 1.9 m/s2 what will be the acceleration after 5 seconds

Physics
1 answer:
Alex73 [517]3 years ago
3 0

Answer:

d = 23.75 m

The zebra has gone 23.75m after 5 seconds.

Corrected question;

A zebra starts from rest and accelerates at 1.9 m/s2. How far has the zebra gone after 5 seconds.

Explanation:

From the equation of motion;

d = vt + 0.5at^2 .........1

Where;

d = displacement

v = initial velocity = 0

t = time taken= 5 seconds

a = acceleration = 1.9 m/s^2

Substituting the given values into equation 1;

d = 0(5) + 0.5(1.9×5^2)

d = 0.5(1.9×5^2)

d = 23.75 m

The zebra has gone 23.75m after 5 seconds.

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Answer:

vi) Double the current in the wire, and double the number of turns in the 20-cm long solenoid

Explanation:

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In the above equation, as μ₀ is a constant so the magnetic field will be directly proportional to the number of turns multiplied by the current. So, changing the radius of the coil or length of the coil will have no effect on the magnetic field.

As we have to increase the magnetic field by 4 times, we need to double the current as well as the number of turns as mentioned in the option vi.

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3 years ago
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Answer:

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2 years ago
An atom that has 117 protons in its nucleus has not yet been made. Once this atom is made, to which group will element 117 belon
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3 years ago
Describe how sound waves are produced
Delvig [45]

Answer:

Sound waves are produced when something vibrates.  

Explanation:

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A particle moves along the x axis so that its velocity at time t is given by v(t)=
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Answer:

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Explanation:

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they give us the function of speed

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