All categories

2 years ago

CER (claim, evidence, reasoning)

1 answer:

6 0

The reasoning that can be used to agree with the claim that has ben made is that the human powered generators are the best due to the fact that they would not have to require the long time and they would not have to consume resources.

<h3>What is a claim?</h3>

This is the term that is used to refer to a statement or an assertion that has been made which has not yet been proven.

The human powered generators are the best due to the fact that they would not require the resources that are known to be more consuming. That is they are renewable and like fossils they would not have any forms of adverse effects on the environment that they are used.

Read more on human powered generators here: brainly.com/question/18287444

#SPJ1

You might be interested in

A 40kg miniature horse runs west at 8 m/s . What is the force of impact if it hits a fence and comes to a sudden stop in 0.5s?

Andru [333]

Answer:

640 N

Explanation:

Given :

Mass of horse, m = 40kg

initial speed of horse, u = 8 m/s

final speed of horse, v = 0 m/s (because horse comes to a sudden stop)

time taken to stop, t = 0.5 s

recall that acceleration = change in speed / time taken for the change

a = (v - u) / t (substituting the above values)

a = (0 - 8) / 0.5

a = -16 m/s² (i.e it is a deceleration of 16 m/s²)

since we are not concerned about the direction of the force, we can simply use the absolute value of acceleration which is a = 16 m/s²

also recall that

Force = mass x acceleration

F = ma (substituting the values above)

F = 40kg x 16 m/s

F = 640 N

6 0

3 years ago

The siren on an ambulance is emitting a sound whose frequency is 2450 Hz. The speed of sound is 343 m/s. If the ambulance is sta

lyudmila [28]

Answer:

The wavelength is 0.14 m

Explanation:

Given that,

Frequency = 2450 Hz

Speed of sound = 343 m/s

We need to calculate the wavelength

Using formula of wavelength

$v= f\lambda$

Where, v = speed of sound

f = frequency

Put the value into the formula

$\lambda=\dfrac{v}{f}$

$\lambda=\dfrac{343}{2450}$

$\lambda=0.14\ m$

Hence, The wavelength is 0.14 m

5 0

4 years ago

Read 2 more answers

Two students, standing on skateboards, are initially at rest, when they give each other a shove! After the shove, one student (7

Elden [556K]

Answer:

The other student (59kg) moves right at 7.44 m/s

Explanation:

Given;

mass of the first student, m₁ = 77kg

mass of the second student, m₂ = 59kg

initial velocity of the first student, u₁ = 0

initial velocity of the second student, u₂ = 0

final velocity of the first student, v₁ = 5.7 m/s left

final velocity of the second student, v₂ = ? right

Apply the principle of conservation of linear momentum;

Total momentum before collision = Total momentum after collision

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(77 x 0) + (59 x 0) = (-77 x 5.7) + (59 x v₂)

0 = - 438.9 + 59v₂

59v₂ = 438.9

v₂ = 438.9 / 59

v₂ = 7.44 m/s to the right

Therefore, the other student (59kg) moves right at 7.44 m/s

6 0

3 years ago

An escalator carries you from one level to the next in an airport terminal. the upper level is 4.3 m above the lower level, and

fomenos

<span>2700 Joules The important value here is how high the escalator moved you. The actual length doesn't matter. All it affects is how fast the work is performed upon you. So the escalator lifted 64 kg against gravity for 4.3m. So: 4.3 m * 9.8 m/s^2 * 64 kg = 2696.96 kg*m^2/s^2 = 2696.96 Joules Rounding to 2 significant figures gives 2700 Joules</span>

6 0

3 years ago

In the first video for chapter 29, we looked at the emission spectrum of excited gases. In this video, we look at the __________

Elan Coil [88]

Although the video is not found here, the sentence makes reference to the transmission spectrum of colored filters.

<h3>What is the transmission spectrum?</h3>

The transmission spectrum indicates the light portion having a given wavelength that can be passed through a filter.

This spectrum (transmission spectrum) depends on the physical separation of the particles that form the filter.

In conclusion, although the video is not found here, the sentence makes reference to the transmission spectrum of colored filters.

Learn more about the transmission spectrum here:

brainly.com/question/1287536

#SPJ1

6 0

3 years ago