2.2.4 Quiz: Conservation of Energy

After completing the group activity, do you believe that your instructions were written enough for the other team to follow?

Monica [59]

Answer:

yes I do

Explanation:

and is that the answer you were looking for because I am very dumb so I really don't know

4 0

3 years ago

Read 2 more answers

One type of atomic particle that is found in the nucleus does not contribute to

prohojiy [21]

Answer:

1) They are electrically neutral

2) They have slightly more weight than protons

Explanation:

The given atomic particle found in the nucleus has the following characteristics;

The location of the particle = The nucleus

The (numbers of the) particle does not contribute to (change) the atomic number of the element

The particles found within the nucleus of an atom are; Neutrons and protons

The particle within the nucleus that determines the atomic number = The number of protons

Therefore, the particle referenced in the question is the neutrons

The two characteristics of the neutron are;

1) The neutrons are neutral, electrically

2) Neutrons have slightly more weight than protons

3) Neutrons are magnetic

4) Neutrons are very small

5) Neutrons consist of three quarks; One 'Up', and two 'Down' quarks

Therefore, two characteristics of the particle are;

1) They are electrically neutral and 2) They are slightly heavier than protons.

8 0

3 years ago

A base is a substance that's the chemical opposite of an acid.<br> True or false

anygoal [31]

True

Explanation:

A base is a substance that is often used as the chemical opposite of an acid.

Both behaves in opposite way to one another.

They can be said to complementary or conjugate chemicals.

According to Bronsted-Lowry theory, an acid is a proton donor and a base is a proton acceptor.
The lewis theory states that an acid is an electron pair acceptor while a base is an electron pair donor.
Acids turn blue litmus paper red and bases turns red litmus paper blue.

learn more :

Acid brainly.com/question/11062486

#learnwithbrainly

6 0

4 years ago

A highway patrol officer uses a device that measures the speed of vehicles by bouncing radar off them and measuring the Doppler

Whitepunk [10]

Answer:

$V = 2.5725*10^{-5}m/s$

Explanation:

The data we are given is:

V = ? fo = 100GHz fs = 100000015KHz C = 343m/s

With the doppler effect formula we can calculate the frequency perceived by the vehicle as:

$fr = \frac{C+V}{C}*fo$ (1)

Then, we sound waves bounce back on the vehicle:

$fs = \frac{C}{C-V}*fr$ (2) Replacing tha value obtained in (1)

$fs = \frac{C}{C-V}*\frac{C+V}{C}* fo$ Solving for V:

$V = C*\frac{fs-fo}{fs+fo}=2.5725*10^{-5}m/s$

7 0

3 years ago

The motion of a particle is described by the position function s(t) = 2t - 15t +33t+17,t>0 , where is measured in seconds and

8090 [49]

The time when the particle is at rest is at 1.63 s or 3.36 s.

The velocity is positive at when the time of motion is at $0$ .

The total distance traveled in the first 10 seconds is 847 m.

<h3>When is a particle at rest?</h3>

A particle is at rest when the initial velocity of the particle is zero.

The time when the particle is at rest is calculated as follows;

s(t) = 2t³ - 15t² + 33t + 17

$v = \frac{ds}{dt} = 6t^2 -30t + 33\\\\at \ rest, \ v = 0\\\\6t^2 - 30t + 33 = 0\\\\6(t- \frac{5}{2} )^2- \frac{9}{2} = 0\\\\t = 1.63\ s \ \ or \ 3.36 \ s$

The velocity is positive at when the time of motion is as follows;

$0$ .

The total distance traveled in the first 10 seconds is calculated as follows;

$2(10)^3 - 15(10)^2 + 33(10) + 17 = 847 \ m$

Learn more about motion of particles here: brainly.com/question/11066673

4 0

2 years ago