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3 years ago

When you are driving on a rural road, if your right wheels run off the pavement, you should hold the steering wheel firmly and

Physics

1 answer:

julia-pushkina [17]3 years ago

7 0

Answer:

C). Take your foot off the gas pedal. Then brake lightly until you are moving at low speed.

Explanation:

While driving on roads of rural areas, if our right wheel moves off the pavement, we should always hold the steering wheel firmly and then take our foot off the gas pedal, then apply brake lightly until we are moving at a low speed.

When our wheels drift off the pavement area, we should not panic and yank. And instead of turning the wheel back in the left direction towards the road, it is always safer to take off our foot from the gas pedal and then apply brakes slowly. When our vehicle slows down check the incoming traffic behind us and then we should slowly move back on to the pavement.

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Assume a 4.094 mhz clock is used as the system clock and the systick selects it as the clock. What should the systick_load regis

Anarel [89]

The load value for interrupts every one milliseconds is

$\begin{aligned}&\mathrm{val}=1 \times 10^{-3} \times 4.094 \times 10^6 \\&\Rightarrow \mathrm{val}=4094\end{aligned}$

The load value for interrupts every millisecond is

$\begin{aligned}&\mathrm{val}=1 \times 10^{-6} \times 4.094 \times 10^6 \\&\Rightarrow \mathrm{val}=4.094\end{aligned}$

However, we can only load integer values, therefore we apply

$\Rightarrow v a l \approx 4$

When the delay is 1 ms, it is accurate, but when the delay is 1 us, it is a little bit less. We are unable to provide an accurate 1 us delay interrupt because this requires a fractional value was calculated.

<h3>What does a SysTick timer do?</h3>

The systick timer has an auto reload and a 24-bit countdown timer.
An RTOS scheduler typically uses it to provide a periodic interrupt.
The Cortex-M CPU clock is used as the default clock source for the systick timer.

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2 years ago

A simple harmonic oscillator oscillates with frequency f when its amplitude is

yKpoI14uk [10]

If the amplitude is doubled, the frequency is still f.

In fact, the frequency of a simple harmonic oscillator does not depend on the amplitude. The frequency of the oscillator in fact is:
$f= \frac{1}{2 \pi} \sqrt{ \frac{k}{m} }$
where
k is the spring constant
m is the mass attached to the spring

We can see that the frequency does not depend on the amplitude A, but only on the properties of the oscillator, so if the amplitude is doubled, the frequency does not change.

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3 years ago

Which of the following are vector quantities?

oksano4ka [1.4K]

Answer:

Displacement and acceleration

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3 years ago

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18. A net force of 1.0N acts on a 4.0-kg object, initially at rest, for 4.0 seconds. What is the distance the object moves durin

hjlf

Acceleration = force/mass
1/4
s=ut+1/2at^2
0*4+1/2*1/4*4^2
1/2*1/4*16
1/2*4
=2

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4 years ago

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You are feeling like spaghetti. Although normally only about 2 meters tall, you are now about 25 meters long. (How fortunate, if

viva [34]

You are crossing the event horizon of a black hole

When you are feeling like spaghetti and you are normally only about 2 meters tall, you are now about 25 meters long, then look up over your head, you see things moving pretty quickly in the universe but that lasts only a brief instant, and then all contact with the universe is lost, you are crossing the event horizon of a black hole.

<h3>What happens when you are crossing the event horizon of a black hole?</h3>

The point of no return is the black hole's event horizon.
Anything that continues beyond this point will be absorbed by the black hole and disappear from the known universe forever.
The black hole's gravity is so strong at the event horizon that it cannot be overcome or resisted by any mechanical force.

<h3>Is it possible to endure inside an event horizon?</h3>

As a result, the individual would survive and gently float over the event horizon of the black hole without being harmed or stretched into a long, thin noodle.

<h3>What occurs beyond the horizon of the event?</h3>

A singularity is a truly tiny point that lies beyond the event horizon where gravity is so strong that space-time itself is infinitely bent.
The principles of physics as they exist presently break down at this point, making any hypotheses about what lies beyond mere conjecture.

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2 years ago