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3 years ago

What do astronomers mean by the big bang?

1 answer:

8 0

The big band theory is a theory that the universe started from a huge bang throwing all the galaxies out into space. #start of the universe.

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A firecracker is thrown downward from a height of 2.75m above the ground, with a speed of 3.15m/s. Ignore air resistance, determ

3241004551 [841]

Here in this question as we can see there is no air friction so we can use the principle of energy conservation

$PE_i + KE_i = PE_f + KE_f$

$mgh_1 + \frac{1}{2}mv_i^2 = mgh_2 + \frac{1}{2}mv_f^2$

now here we know that

$h_1 = 2.75 m$

$v_i = 0$

$v_f = 5.23 m/s$

now plug in all values in above equation

$mg*2.75 + 0 = mgh + \frac{1}{2}m(5.23)^2$

divide whole equation by mass "m"

$9.8*2.75 = 9.8*h + \frac{1}{2}*27.35$

$9.8*h = 13.27$

$h = 1.35 m$

so height of the ball from ground will be 1.35 m

4 0

3 years ago

Do cars get better gas mileage with clean air filters? Gas mileage for 10 cars with dirty air filters and clean air filters was

ASHA 777 [7]

Answer:

Explanation:

Yes.

Proper maintenance of cars or any vehicle will add more life to it and increase the quality performance.

If dirty filters of cars is changed, the gas mileage will increase resulting into a better performance of cars.

Dirty air filters reduces the capacity for it to filter the air going into engine. If air filters are not changed for a longer time it results into misfire or trouble starting.

8 0

3 years ago

What is the pharmacy technician’s role in medication therapy management?

Svetradugi [14.3K]

The goal of is to assist patients with using drug therapy correctly, to improve or maintain their health, and to prevent or reduce drug-related issues. is especially suited for people who take multiple medications for chronic health conditions. Optimizing patient health, improving adherence, avoiding waste, preventing potential errors or adverse effects, and saving costs. Also represents a potential revenue stream for the pharmacy.
Medical and pharmacy record gathering, organization, and assessment Medication reconciliation (developing a Personal Medication List) Correspondence with patients, physicians, other health care providers. Follow-up to enhance patient adherence

5 0

3 years ago

それで、私はヘビと一緒に座っていました、そしてこれが起こりました、私のヘビは本当に奇妙に行動していたので私は本当に混乱したようでした、私のヘビは本当に奇妙に行動していたので、私はオーロラのようでした、やめてください。それから彼女は私をすべて奇妙に見たので私

iVinArrow [24]

Answer:

something

Explanation:

Something

8 0

3 years ago

When an object accelerates, what about its motion changes? Question 1 options: Speed must change, but not velocity. Both speed a

QveST [7]

Answer:

The velocity must change but not speed.

Explanation:

Velocity is defined as the displacement by time. Whereas speed is expressed as the distance between two successive positions of the body to the time interval it took to travel.

Velocity, V = D / t m/s

Speed, s = d /t m/s

Velocity is a vector quantity that has a magnitude and direction.
The speed is a scalar quantity having only the magnitude.
At any instant of time, the magnitude of the velocity is always equal to the magnitude of the speed. The magnitude of velocity, |v | = magnitude of speed, |v |. The magnitude is always positive
The acceleration of a body is defined as the rate of change of velocity to time.

a = (v - u) / t m/s²

If a body is accelerating, It varies its velocity with respect to time.
In case of uniform circular motion, the speed remains constant, but the velocity changes continuously.

So, in the case of circular motion if an object accelerates, velocity must change but speed remains constant.

5 0

4 years ago