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Vesna [10]
4 years ago
7

You are in a train traveling on a horizontal track and notice that a piece of luggage starts to slide directly toward the front

of the train. From this observation, you can conclude that this train is:__________
A) Slowing down
B) Slowing down and changing direction
C) Speeding up and changing direction
D) Speeding up
E) Changing Direction
Physics
1 answer:
Sindrei [870]4 years ago
8 0

A very interesting observation, to be sure.

If the train is traveling forward, then it is slowing down.

If the train is traveling backward, then it is speeding up.

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sweet [91]

Answer:

mechanical energy to heat energy to chemical energy

8 0
3 years ago
Please help me with this i dont know it​
Inessa05 [86]

Answer:

no it would not. that is an open circuit and it would need to be closed at the switch for current to flow.

5 0
3 years ago
The symbol used for magnetic field is:
alina1380 [7]
The letter "B" is used for magnetic field
5 0
3 years ago
A loop of area 0.250 m^2 is in a uniform 0.020 0-T magnetic field. If the flux through the loop is 3.83 × 10-3T· m2, what angle
dangina [55]

Answer:

40.0⁰

Explanation:

The formula for calculating the magnetic flux is expressed as:

\phi = BAcos\theta where:

\phi is the magnetic flux

B is the magnetic field

A is the cross sectional area

\theta is the angle that the normal to the plane of the loop make with the direction of the magnetic field.

Given

A = 0.250m²

B = 0.020T

\phi = 3.83 × 10⁻³T· m²

3.83 × 10⁻³ = 0.020*0.250cosθ

3.83 × 10⁻³ = 0.005cosθ

cosθ = 0.00383/0.005

cosθ = 0.766

θ = cos⁻¹0.766

θ = 40.0⁰

<em>Hence the angle normal to the plane of the loop make with the direction of the magnetic field is 40.0⁰</em>

4 0
3 years ago
Mars has twice the mass of Mercury and is 4 times further away from the Sun. Calculate theratio of the gravitational force from
svetoff [14.1K]

Answer:

F(Mars) = 2 G m M / (4 R)^2   force of Sun on Mars

F(Merc) = G m M / R^2    force of force of Sun on Mercury

R = distance of Sun from Mercury, m = mass of Mercury

F(Merc) / F(Mars) = 4^2 / 2 = 8

6 0
3 years ago
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