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mote1985 [20]
3 years ago
11

In a head-on car crash, the passenger flies forward into the seat belt, steering wheel, or windshield.

Physics
1 answer:
Neporo4naja [7]3 years ago
5 0
This should be inertia.
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Why is Saitama so strong?
Helga [31]

Answer:

he performed 100 push-ups, 100 sit-ups, and 100 squats, and ran 10 kilometers each day for over a year.

Explanation:

crazy right

6 0
3 years ago
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A length of copper wire has a resistance 29 Ω. The wire is cut into three pieces of equal length, which are then connected as pa
erik [133]

Answer:

3.222 ohms

Explanation:

If the total wire had a resistance of 29 ohms, when cut in three, each piece will have a resistance of 9.666 ohms.

As these three pieces (R1, R2 and R3) are now connected in parallel, the equivalent resistance R can be calculated using this equation:

1/R = 1/R1 + 1/R2 + 1/R3

1/R = 1/9.666 + 1/9.666 + 1/9.666

1/R = 3/9.666

R = 9.666/3 = 3.222 ohms

The resistance between A and B will be 3.222 ohms

6 0
3 years ago
Given a particle that has the velocity v(t) = 3 cos(mt) = 3 cos (0.5t) meters, a. Find the acceleration at 3 seconds. b. Find th
DiKsa [7]

Answer:

a.\rm -1.49\ m/s^2.

b. \rm 50.49\ m.

Explanation:

<u>Given:</u>

  • Velocity of the particle, v(t) = 3 cos(mt) = 3 cos (0.5t) .

<h2>(a):</h2>

The acceleration of the particle at a time is defined as the rate of change of velocity of the particle at that time.

\rm a = \dfrac{dv}{dt}\\=\dfrac{d}{dt}(3\cos(0.5\ t ))\\=3(-0.5\sin(0.5\ t.))\\=-1.5\sin(0.5\ t).

At time t = 3 seconds,

\rm a=-1.5\sin(0.5\times 3)=-1.49\ m/s^2.

<u>Note</u>:<em> The arguments of the sine is calculated in unit of radian and not in degree.</em>

<h2>(b):</h2>

The velocity of the particle at some is defined as the rate of change of the position of the particle.

\rm v = \dfrac{dr}{dt}.\\\therefore dr = vdt\Rightarrow \int dr=\int v\ dt.

For the time interval of 2 seconds,

\rm \int\limits^2_0 dr=\int\limits^2_0 v\ dt\\r(t=2)-r(t=0)=\int\limits^2_0 3\cos(0.5\ t)\ dt

The term of the left is the displacement of the particle in time interval of 2 seconds, therefore,

\Delta r=3\ \left (\dfrac{\sin(0.5\ t)}{0.05} \right )\limits^2_0\\=3\ \left (\dfrac{\sin(0.5\times 2)-sin(0.5\times 0)}{0.05} \right )\\=3\ \left (\dfrac{\sin(1.0)}{0.05} \right )\\=50.49\ m.

It is the displacement of the particle in 2 seconds.

7 0
4 years ago
How does a human insulin gene become part of a bacterium's plasmid?
Murrr4er [49]
1. Scientists are responsible for removing plasmids, small rings of DNA, from bacterial cells. 

2. The Enzymes cut open the plasmid DNA. The same enzyme removes the human insulin gene from its chromosome.

3. The human insulin gene attaches the open ends of the plasmid to form a closed ring.

4. Some bacterial cells take up the plasmids that have the insulin gene.
<span>
5. When cells reproduce, the news cells will contain copies of the engineered plasmid. The foreign gene directs the cell to produce human insulin.</span>
4 0
4 years ago
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A sub-atomic event in which a uranium nucleus splits into lighter
inessss [21]

Answer:

A Fusion

Explanation:

6 0
3 years ago
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