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3 years ago

Where would a boat produce the highest concentration of carbon monoxide?

1 answer:

5 0

A boat would produce the highest concentration of carbon monoxide in the exhaust system.

Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air. It is toxic to hemoglobic animals (both invertebrate and vertebrate, including humans) when encountered in concentrations above about 35 ppm.

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What is a risk of using chemical pesticides on crops?

irakobra [83]

Answer:

a. chemical contamination of streams ans rivers

d. adaptation

4 0

3 years ago

A proton with a velocity in the positive x-direction enters a region where there is a uniform magnetic field B in the positive y

Genrish500 [490]

Answer:

Positive z direction.

Explanation:

The magnetic force acting on the electron is given by the formula as :

$F=q(v\times B)$

q is the charge on proton

v is the speed of proton

B is the magnetic field

It is mentioned that the proton is moving with a velocity in the positive x-direction. The uniform magnetic field B in the positive y-direction such taht,

q = +e

v = vi

B = Bj

$F=e(v\ i\times B\ j)$

Since, $i\times j=k$

$F=(evB)\ k$

So, the magnetic force acting on the proton in positive z axis. Hence, the correct option is (d) "positive z direction".

8 0

3 years ago

Which of the following would be useful to show the growth rate of plants at verying temperatures?

astraxan [27]

B or d most likely, because a frequency table you can show for example the amount of time the plant grew to 30 cm in 87 degree feirenhieght

3 0

3 years ago

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A ball rolls onto the path of your car as you drive down a quiet neighborhood street. to avoid hitting the child that runs to re

KengaRu [80]

Since the acceleration of car is uniform so the distance traveled by car while brakes are applied is given by

$d = \frac{v_f + v_i}{2}*t$

given that

$v_f = 9 m/s$

$v_i = 15 m/s$

$t = 1.20 s$

now plug in all data in above formula

$d = \frac{15 + 9}{2} * 1.2$

$d = 14.4 m$

so car will cover 14.4 m distance while it apply brakes

5 0

3 years ago

If a bowl of fruit is sitting on a table in a state of rest, what is the net force acting on it?

Setler79 [48]

A balanced force is upon it because balanced means both sides are equal so they cancel each other out, while unbalanced means one side is weaker/stronger than the other and in this case its in a state of rest so the net force would be equal/balanced.

8 0

3 years ago

Read 2 more answers