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prohojiy [21]
3 years ago
5

A scientist records the motion of an object. She writes down that the

Physics
1 answer:
Phantasy [73]3 years ago
3 0
The answer is Velocity
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One group of students uses different methods to conserve water as listed below.
Deffense [45]
The best answer is b) <span>Method 1 and Method 3

Method 2, which is part of every other options, does involve using extra water because the dishwasher will necessarily use extra water, even if it is full when you use it. 
On the other hand, fixing leaky faucets requires no extra water and the recycled water used to wash your car has already been used. </span>
3 0
4 years ago
A special system is set up in a lab that lets its user select any wavelength between 400nm and 700 nm with constant intensity. T
e-lub [12.9K]

Answer:

Explanation:

The case relates to interference in thin films , in which we study interference of light waves reflected by upper and lower surface of a medium or glass.

For constructive interference , the condition is

2μt = ( 2n+1)λ/2

μ is refractive index of glass , t is thickness , λ is wavelength of light.

putting the given values

2 x 1.53 x 350 x 10⁻⁹ = ( 2n+1) λ/2

λ = 2142nm /  ( 2n+1)

For n = 2

λ = 428 nm

This wave length will have constructive interference making this light brightest of all .

For n = 1

λ = 714  nm

So second largest  brightness will belong to 700 nm wavelength.

3 0
3 years ago
When jumping down from a table to the ground, it is helpful to bend your knees when you hit the ground because...
forsale [732]

Answer:

This reduces the average force applied during the landing process/ or you can say it reduces the impact your body takes.

Explanation:

7 0
3 years ago
According to the pressure-flow hypothesis, why must sieve-tube elements in phloem be living cells?
Zigmanuir [339]
Base from the pressure-flow hypothesis, the sieve tube in the phloem should be living cells because sugars are transported across the membranes by the active transport which needs ATP that is produced during respiration. Hope this helps.
3 0
3 years ago
Which of the following systems acquisition methods requires staff to systematically go through every step in the development pro
Pani-rosa [81]

Answer:

a.Systems development life cycle

Explanation:

Of all the options the correct answer is a.Systems development life cycle.

Systems development life cycle: The life cycle phases of systems development include preparation, system assessment, system design, advancement, application, inclusion and testing, as well as maintenance and support.

So, we can see that the Systems development life cycle enables staff to systematically go through every step in the development process and has a lower probability of missing important user requirements.

7 0
3 years ago
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