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3 years ago

I need helppp cleaner copy

Physics

2 answers:

horrorfan [7]3 years ago

4 0

Answer:

what book is this I think the first answer

ratelena [41]3 years ago

3 0

Matter> anything that has mass and takes up space.
Then it’s pure substances (goes on right) then definition is the one that is, “matter that only has 1 set of chemical and physical properties” > divides into compounds and elements. The detention of compounds is, contains two or more elements chemically bonded together.
Oxygen, is under elements.
Then on the left goes mixture; definition, “

Under compounds goes sodium, co2, h2o

under it goes homogeneous (left) def: “more than 1 type of matter that looks different through” and heterogeneous (right Im sure). Def. of heter is, “two or more substances chemically combined and can be separated.”
Under heter goes; soil and blood
Under homo: kool aid,
Chex mix and cake batter
That’s what I’ve gotten so far

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Is the answer D?

irga5000 [103]

Nope answer is 500 N downward
draw the freebody diagram to understand

7 0

4 years ago

A 25kg crate is at rest on a floor but is pushed by a force of 60N to the right . If the crate remains at rest, determine the co

Ymorist [56]

Ff=μN=>μ=Ff/N=Ff/mg=60/25*10=6/25=0.24

3 0

4 years ago

It takes Harry 34 s to walk from x1 = -11 m to x2 = -54 m .

miss Akunina [59]

Missing question:
"<span>What is his velocity? Please answer using two sig figs in m/s."

Solution
The relationship between velocity (v), space (S) and time (t) is
</span> $v= \frac{S}{t}$
<span>The space covered by Harry is
</span> $S=x_1 - x_2 = -11 m-(-54 m)=43 m$
<span>and so the velocity is
</span> $v= \frac{43 m}{34 s} =1.26 m/s$ <span>
</span>

4 0

4 years ago

a person takes a trip, driving with a constant speed of 89.5 km/h except for a 22.0 min rest stop. if the person’s average speed

fredd [130]

TheThe distance they have covered for trip is 219Km.

<h3>What do you mean by uniformly accelereted motion?</h3>

When an object is traveling in a straight line with an increase in velocity at equal intervals of time.

The total time for the trip is

T→ t1+ 22 min = t1+ 0.367 h ,where t1 is the time spent traveling at

V1= 89.5 km/ h .

the distance traveled is ∆x = V1t1=Vavg T

after applying value and calculating it we get

t1= 2.44h for a total time of

t total we get 2.81 h .

∆x =V1T1 = VavgTtotal

∆x = 77×2.81= 219 Km

to learn more about Uniform accelereted motion click here brainly.com/question/12920060

#SPJ4

3 0

2 years ago

An open pipe is 1.42 m long

lora16 [44]

Answer:

the fundamental frequency produced by the open pipe is 120.78 Hz

Explanation:

Given;

length of the open pipe, L = 1.42 m

speed of sound in air, v = 343 m/s

The length of the open pipe for the fundamental frequency is equivalent to half of wavelength;

$L = \frac{\lambda}{2} \\\\\lambda = 2L$

The fundamental frequency produced by the open pipe is calculated as;

$f_o = \frac{v}{\lambda} \\\\f_o = \frac{v}{2L} \\\\f_o = \frac{343}{2 \times 1.42} \\\\f_o = 120.78 \ Hz$

Therefore, the fundamental frequency produced by the open pipe is 120.78 Hz

6 0

3 years ago