What is the chance of a light car safely rounding an unbanked. Curve on an icy road as compared to that of a heavy car: worse, the same, or better? Assume that both cars have the same speed and are equipped with identical tires. Account for your answer.

Answers

Answer 1

Answer:

Answer:)

Both cars will move in the Same way

Explanation:

Moving on an unbanked icy road, the cars will have friction which will keep them from slipping on the icy road. This friction here is called Centripetal Force. The friction force due to which the tires roll and do not slip is the static friction μsN, (μs= coefficient of static friction , N= Normal Force which is equal to the weight of the car/body, so N=mg).

Now from above description, the centripetal force( $F_(c)$ ) becomes,

$F_(c)$ =f=μsN , (N=mg)

so , $F_(c)$ =μs(mg)

As we know the formula of centripetal force is

$F_(c)$ = m $v^(2)$ /r

Putting the value of $F_(c)$ from above

μs(mg) = m $v^(2)$ /r

cutting the 'm' from both sides, we get

μs(g) = $v^(2)$ /r

μs = $v^(2)$ /rg

we see from the derivation that there is no effect of mass on the cars, so in case of both cars having same speed and same tires, they will act in the same way resulting no effect of their masses on them

Answer 2

Answer:

Answer:

Both cars will move in the Same way

Explanation:

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What lines the inferior surface of the diaphragm?

Answers

The roof of the abdominal cavity is inferior to the diaphragm.

A student performs an activity using a sheet of paper, a magnet, and a steel ball. The image shows the setup. The student observes that the steel ball sticks to the magnet even though, the paper is between them. Which factor leads to the attraction of the ball to the magnet. A. The magnet exerts a force on the ball.
B. The magnet attracts paper, which pulls the ball. C. The paper exerts a force on the ball, Which pulls the ball towards the magnet.
D. The size of the ball attracts to the ball towards the magnet.

Answers

A steel ball, a magnet, and a piece of paper are used in an activity by a pupil. The ball is under the influence of the magnet. Therefore, choice A is right.

What is a magnet?

When electric charges move, a phenomenon known as magnetism is produced. These tiny movements can occasionally be found inside a material known as magnets. Magnets and the magnetic fields created by moving electric charges can attract or repel other magnets, which can also change how other charged particles move.

Because they can support a magnetic field that lasts forever, some materials, like iron, are categorized as permanent magnets. These are the magnets that are typically encountered in day-to-day life. Other materials like iron, cobalt, and nickel can be briefly given a magnetic field when placed inside a stronger, bigger magnetic field, but they will eventually lose their magnetic qualities.

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Answer:b

Explanation:

In order to increase thermal energy, the temperature must ___________.a.
increase
c.
remain the same
b.
decrease
d.
it cannot be determined

Answers

Answer: Option (a) is the correct answer.

Explanation:

Energy obtained by an object due to the motion of particles that are present within the object is known as thermal energy.

So, when we increase the temperature of a substance then its molecules tend to gain kinetic energy. Because of this molecules will start to move from their initial position and hence, there will be more number of collisions between the molecules.

As a result, there will be increase in thermal energy of the substance.

Thus, we can conclude that in order to increase thermal energy, the temperature must increase.

In order to increase thermal energy, the temperature must increase

A container filled with gas has a volume of 185 mL and a pressure of 310 mm Hg. The desired new volume is 74.0 mL. What is the required new pressure? 124 mm Hg 44 mm Hg 775 mm Hg 0.00129 mm Hg

Answers

The answer is 124 mm hg

The balanced half-reaction in which dichromate ion is reduced to chromium metal is a ________ process. a. two-electron b. six-electron c. four-electron d. three-electron e. twelve-electron

Answers

Answer:

The balanced half-reaction in which dichromate ion is reduced to chromium metal is a six-electron process.

Explanation:

The dichromate ion (Cr2O72-) has an oxidation state of +6, while chromium metal has an oxidation state of 0. So, 6 electrons must be transferred from the dichromate ion to chromium metal for the reduction to occur.

What happens to parallel light rays that strike a concave lens?

Answers

When parallel light rays comes across a concave lens, the rays are refracted outwards. Concave lenses are thinner in the middle part. Parallel light rays diverge and seems to appear from one point called the principal focus. The image formed is smaller.

Answer:

The light ray that pass through the lens diverge and is refracted outwards and never meets at a focal point.

Explanation:

Divergent lenses (also called concave lenses) are transparent bodies bounded by two refractory surfaces with one central axis in common. When a parallel light ray strikes a lens, it is refracted by changing its direction, this refraction in the divergent lens causes the rays to move away from the central axis, ie the ray of light passing through the lens diverges and is refracted outward. and is never at a focal point.

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