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elena-14-01-66 [18.8K]

3 years ago

13

Motion *

1 answer:

fomenos3 years ago

3 0

Answer:

occurs when object changes position

Explanation:

when an object changes position with respect to others it is called motion

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ELEN [110]

Answer:

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8 0

3 years ago

In a particular region, there is a uniform magnetic field with a magnitude of 2.00 T. You take a particle with a charge of +6.00

expeople1 [14]

Answer:

a) 1.68 N b) 0 c) 14.5º

Explanation:

a)

The force on a charge moving in a magnetic field, is a vector perpendicular to the plane defined by the velocity of the charge and the magnetic field.
The magnitude of the force F is given by the following expression:

$F = q*v*B*sin\theta (1)$

where q= magnitude of the charge of the particle, v=velocity of the particle, B= magnitude of the magnetic field, and θ= angle between v and B.
Replacing by the known values in (1) we have:

$F = q*v*B*sin\theta (1) = 6.00e-6C*1.40e5m/s*2T*sin\theta=\\ \\ F= 1.68N*sin\theta$

The maximum possible value of F happens when sin θ =1
This means that v and B are perpendicular each other (in the same plane)
So, Fmax = 1.68 N

b)

If the maximum possible value of F happens when sin θ = 1, the minimum possible is when sin θ = 0.
In this case, when v and B are parallel each other, the force is just 0.

c)

If the force is 0.25 of the maximum possible, (which is when sin θ =1), this means that sin θ = 0.25, as it can be seen below:

$F_{\theta} = q*v*B*sin \theta = 0.25*Fmax\\ F_{\theta} = q*v*B*sin\theta= 0.25 (q*v*B*sin 90) \\ sin \theta = 0.25$

$\theta = sin^{-1} (0.25) =14.5 deg$

The angle between the velocity v and the magnetic field B is 14.5º.

3 0

4 years ago

uppose one gallon of gasoline produces 1.17×108 J of energy, and this energy is sufficient to operate a car for 18.3 miles. An a

EleoNora [17]

Answer:

4.5 x 10^6 miles

Calculations can be viewed on the snapshot attached to this reply.

Thanks

8 0

4 years ago

If a proton is released at the equator and falls toward earth under the influence of gravity, the magnetic force on the proton w

pantera1 [17]

Positive positive side naturally because protons always move to positive side and electron always move to negative side

3 0

3 years ago

A student uses a microwave oven to heat a meal. The wavelength of the radiation is 8.97 cm. What is the energy of one photon of

krek1111 [17]

Answer:

The energy of one photon is 2.21x10⁻²⁴ J. Multiplied by 10²⁵ is 22.10 J.

Explanation:

The energy (E) of a photon is:

$E = h\frac{c}{\lambda}$

Where:

h: is the Planck's constant = 6.62x10⁻³⁴ J.s

λ: is the wavelength of the radiation = 8.97 cm

c: is the speed of light = 3.00x10⁸ m/s

$E = h\frac{c}{\lambda} = 6.62 \cdot 10^{-34} J.s\frac{3.00\cdot 10^{8} m/s}{8.97 \cdot 10^{-2} m} = 2.21 \cdot 10^{-24} J$

Hence, the energy of one photon is 2.21x10⁻²⁴ J.

Now, if we multiply the answer by 10²⁵ we have:

$E = 2.21 \cdot 10^{-24} J \cdot 10^{25} = 22.10 J$

I hope it helps you!

8 0

3 years ago