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Umnica [9.8K]
3 years ago
6

Echnician a says that to prevent injuries in an auto accident, all steering columns have a break-off steering wheel. technician

b says that to prevent injuries in an accident, all steering columns are now fitted with a flexible rubber tube. who is correct? choose one answer.
Physics
1 answer:
Oliga [24]3 years ago
4 0
<span>Technician a says that to prevent injuries in an auto accident, all steering columns have a break-off steering wheel. technician b says that to prevent injuries in an accident, all steering columns are now fitted with a flexible rubber tube. Both technicians are correct.   The </span>vehicle manufacturers use break away steering column mounting brackets to protect the driver in an accident.  The <span>vehicle manufacturers are required to use collapsible shafts in the steering column. </span>
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You are directed to set up an experiment in which you drop, from shoulder height, objects with similar surface areas but differe
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Explanation:

The volume of both objects is almost the same, so the force of friction will be the same in each one, so we can discard it.

Now, when yo drop an object, the acceleration of the object is always g = 9.8m/s^2 downwards, independent of the mass of the object.

So if you drop two objects with the same volume but different mass, because the acceleration is the same for both of them, they will hit the ground at the same time, this means that the density of the object has no impact in how much time the object needs to reach the floor.

So the correct option is c

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An electric circuit can have no current when a switch is
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Answer:

Open

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3 years ago
According to Kepler's Third Law, a solar-system planet that has an orbital radius of 4 AU would have an orbital period of about
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Answer:

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Explanation:

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The orbital period of the planet can be calculated using third law of Kepler's. It is as follows :

T^2=\dfrac{4\pi^2}{GM}r^3

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T^2=\dfrac{4\pi^2}{6.67\times 10^{-11}\times 1.989\times 10^{30}}\times (1.496\times 10^{11})^3    

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6 0
3 years ago
A stone is launched straight up by a slingshot. Its initial speed is 19.6 m/s, and the stone is 1.50 m above the ground when lau
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Answer: a) 19.21m b) 3.92secs

Explanation:

a) Maximum height reached by the object is the height reached by an object before falling freely under gravity.

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Maximum Height = 19.6²/2(10)

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b) The time elapsed before the stone hits the ground is the time of flight T= 2U/g

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T = 39.2/10

Time elapsed is 3.92secs

5 0
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