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3 years ago

14

An ant carries food at a speed of 1 cm/s. How long will it take the ant to carry a cookie crumb from the kitchen table to the an

t hill, a distance of 50 m? Express your answer in seconds, minutes and hours.

1 answer:

Murrr4er [49]3 years ago

4 0

5,000 seconds 83 and 1/3 minutes 1.38 (and the 8 is repeated) house

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When the light from a light bulb is reflected by a diffraction grating, a continuous band spectrum is obtained (like a rainbow).

MA_775_DIABLO [31]

Answer:

The light of a light bulb contains all the wavelengths of visible band which on passing through diffraction grating appear in the form of continuous spectra.

Discrete lines are observed when the electron makes a transition from higher orbit to lower orbit releasing a photon having energy which is equivalent to the energy difference between the two orbits.

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3 years ago

Consider the circular motion of a positively charged particle in the plane of this paper, due to a constant magnetic field B~ wh

barxatty [35]

Answer:

the direction of the particle is anti clockwise.

Explanation:

We know that;

- It's a positive particle

- That it's moving in a circle in a magnetic field

- We know the direction of the magnetic field

We can deduce the direction of the magnetic force because it is moving in a circle.

So the force is pointing to the centre of the circle and that's what is keeping it in that circular motion.

Since we know the direction of the magnetic field and force, we can use right hand rule to figure out the direction of the particle since the particle is positive.

Using right hand rule, the thumb which is the particle is pointing anticlockwise. So the direction of the particle is anti clockwise.

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3 years ago

The energy gained by electrons as they are accelerated by an electric field is

Ilia_Sergeevich [38]

The energy gained by an electron as it is accelerated by an electric field is equal to the work done by the electric field itself, and this is equal to the product between the charge of the electron and the potential difference across which the electron traveled:
$\Delta U = W = e \Delta V$ (1)
where e is the electron charge, and $\Delta V$ is the potential difference between the initial and the final point of the electron, and this is equal to
$\Delta V = Ed$ (2)
where E is the intensity of the electric field and d is the distance covered by the electron. If we substitute (2) into (1), we find a final expression for the energy gained by the electron
$\Delta U = e E d$

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3 years ago

A safety plug is designed to melt when the pressure inside a metal tank becomes too high. A gas

erastovalidia [21]

The plug is 6 but u have to divert by the scale to form 5 .C

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3 years ago

Three cars, car x, car y, and car z, begin accelerating from rest, at the same time. car x is more massive than car y, which is

grigory [225]

When the net force exerted on each car is identical. after 10 seconds, the amount of momentum is same for all cars.

<h3>What is impulse?</h3>

The change in momentum is equal to the product of impact force applied while colliding and time for that impact.

F. t = m (Vf -Vi)

where, Vf is the final velocity and Vi is the initial velocity.

For car X, Fx x t = Mx Vx

For car Y, Fy x t = My Vy

For car Z, Fz x t = Mz Vz

The force applied is same for all and the the time is also same equal to 10 seconds. The impulse is same for all the cars.

Thus, the three cars have same momentum.

Learn more about impulse.

brainly.com/question/16980676

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2 years ago