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3 years ago

A current carrying wire is surrounded by a magnetic field. True or false

Physics

1 answer:

Aleks04 [339]3 years ago

7 0

The answer is true because A current carrying wire is surrounded by magnetic field

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Consider the trajectory of a charged particle that is moving with a speed 0.8c in the x direction when it enters a large region

Valentin [98]

Answer:

Explanation:

The electric field applies a force qE, but only in the y direction. This means that the x component of the

momentum must be conserved:

0 = Fx =dpx/dt

=⇒ px is conserved

pxi = γimvxi = pxf = γfmvxf (see the attactments)

the particle will acquire a velocity in the y

direction, and vxf <vxi. The x-component of the velocity, and thus the x-component of the momentum

must decrease.

4 0

4 years ago

Read 2 more answers

What would happen if a bird was a vulture riding on a zebra's back? How would it affect the relationship?

OLEGan [10]

The zebra could be "hen pecked" if the vulture was a hen bird. On the other hand, the two might get along ok. In UK, it they 'd make a useful combination helping each other to cross increasingly dangerous roads (joke).

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4 years ago

A golfer gives a ball a maximum initial speed of 51.5 m/s. how far does it go

nata0808 [166]

<u>Answer:</u>

Golf ball will go a maximum of 270.36 meter.

<u>Explanation:</u>

Projectile motion has two types of motion Horizontal and Vertical motion.

Vertical motion:

We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Considering upward vertical motion of projectile.

In this case, Initial velocity = vertical component of velocity = u sin θ, acceleration = acceleration due to gravity = -g $m/s^2$ and final velocity = 0 m/s.

0 = u sin θ - gt

t = u sin θ/g

Total time for vertical motion is two times time taken for upward vertical motion of projectile.

So total travel time of projectile = 2u sin θ/g

Horizontal motion:

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this case Initial velocity = horizontal component of velocity = u cos θ, acceleration = 0 $m/s^2$ and time taken = 2u sin θ /g

So range of projectile, $R=ucos\theta*\frac{2u sin\theta}{g} = \frac{u^2sin2\theta}{g}$

Now in the given problem

A golfer gives a ball a maximum initial speed of 51.5 m/s. how far does it go

u = 51.5 m/s, for maximum range θ = 45⁰

So maximum distance reached = $\frac{51.5^2sin(2*45)}{9.81}=270.36 meter$

So it will go a maximum of 270.36 meter.

5 0

4 years ago

Maria drove to the store and then to work . What is marias total displacement during her trip

antoniya [11.8K]

Explanation:

Displacement is the shortest distance between two points. Displacement is used to calculate vector quantities such a velocity, force, acceleration, etc.

Here, Maria drove to the store and then to work this means that her total displacement will be the minimum distance between her initial point and her work place.

Hence, the minimum distance between her initial point and her work place is her total displacement.

3 0

3 years ago

In order to cool 1 ton of water at 20°C in an insulated tank, a person pours 140 kg of ice at –5°C into the water. The specific

salantis [7]

Answer:

$T = 6.31 ^0 C$