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4 years ago

What is an example of science playing a role in developing technology?

1 answer:

6 0

Advancements in science are usually bought by technological companies. For example, a research center develops new ways to use robotics for helping people who have amputated limbs. A rich company then buys them and patents it and gives them resources to develop it even further and use it in real life.

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A firecracker sitting on the ground explodes into two pieces. Immediately after the explosion, one of the pieces has momentum of

Misha Larkins [42]

Answer:

other part will move with momentum 0.5 kg m/s towards west

Explanation:

As we know that the during the explosion event the time interval is very small and there is no impulsive force on the firecracker during this time

so here we can say that the momentum will remains conserved during the this event

now if the initial momentum of the firecracker is zero

then the final momentum must be zero

so here we can say

$P_1 + P_2 = 0$

$P_1 = 0.5 kg m/s$ towards east

now from above equation

$P_2 = - P_1 = -0.5 kg m/s$

so the other part will move with momentum 0.5 kg m/s towards west

6 0

4 years ago

Downward force of magnitude 5 N isexerted on the book by the force ofthetablegravityinertia .

mylen [45]

Downward force of magnitude 5 N is exerted on the book by the force of <em>gravity</em>. We call that the "weight" of the book.

At the same time, upward force of 5 N is exerted on the book by the table. This one is called the "normal force".

Since the vertical forces on the book are 'balanced' (add up to zero), the book just lays there on the table, and does not accelerate.

4 0

3 years ago

A cyclist makes the following trip along two vectors; he travels 9km to the north and then travels 6km to the east

elena-14-01-66 [18.8K]

Answer:

Final distance from the origin: 10.82 km. the vector points as shown in the attached image.

Angle with respect to the east: $56.31^o$

Explanation:

Please refer to the attached image. The cyclist's trip is indicated with the green arrows (9 km to the north followed by 6 km to the east.

So his final position is at the tip of this last vector, and indicated by the orange vector drawn form the point where the trip starts to the cyclist's final location.

We observe that this orange vector is in fact the hypotenuse of a right angle triangle, and we can estimate the distance from the origin by the Pythagorean theorem:

$d=\sqrt{9^2+6^2} \\d=\sqrt{81+36} \\d=\sqrt{117} \\d=10.82 \,\,km$

Notice that this is NOT the actual number of km that the cyclist pedaled to reach the final point.

Now, to find the value of the angle $\theta$ , we need to use trigonometry, and in particular the tangent function gives us the ratio between the side of the triangle "opposite" to the angle, divided the side "adjacent" to the angle:

$tan(\theta)=\frac{opp}{adj} \\tan(\theta)=\frac{9}{6}\\tan(\theta)=\frac{3}{2}\\$

Now we can find the value of the angle by using the arctan function:

$tan(\theta)=\frac{3}{2} \\\theta=arctan(\frac{3}{2} )\\\theta= 56.31^o$

6 0

3 years ago

Security is a major concern now that computers play such a large part in healthcare. To address this concern, as well as others

Fed [463]

The correct answer is C. HIPAA

This is the acronym for <span>Health Insurance Portability and Accountability Act. This was done to prevent illegal disclosing of data which was stored in computers and was passed in 1996 when it was signed by the then incumbent president Bill Clinton.</span>

6 0

3 years ago

Read 2 more answers

As you approach a bicyclist traveling in your lane, adjust your speed and position and do not pass if the road is too _______ fo

tatiyna

Answer:

correct answer is narrow

Explanation:

solution

when we pass someone riding bicycle ahead you then we should decrease our speed and increase the distance between you and bicyclist

and we should ride on road with very predictable manner and we should ride in straight line and if If road is too narrow for a bicycle

then we should ride vehicle to travel side by side so bicyclist should occupy lane until it safe

so here correct option is narrow

5 0

3 years ago