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oee [108]
3 years ago
7

For the equation BaCI2 + Na2SO4 > BaSO4 + 2NaCI

Physics
1 answer:
Umnica [9.8K]3 years ago
8 0
B I think aooooooo oops
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An airplane pilot sets a compass course due west and maintains an airspeed of 210 km/h. After flying for a time of 0.490 h, she
tankabanditka [31]

Answer:

V_{A/E}=55.23km/h\\or\\V_{A/E}=15.342m/s

Explanation:

The velocity of plane relative to earth is given by:

V_{P/E}=\frac{d}{t}\\V_{P/E}=\frac{[-121i-20j]km}{0.490h}  \\V_{P/E}=[-247i-41j]km/h

As the from given data.The velocity of plane relative to air is:

V_{P/A}=[-210i]km/h

According to relative motion of velocity of the air relative to earth given by:

V_{A/E}=V_{P/E}-V_{P/A} \\V_{A/E}=[(-247i-41j)km/h]-(-210i)km/h\\V_{A/E}=[-37i-41j]km/h\\

The magnitude is given as:

V_{A/E}=\sqrt{(37)^{2}+(41)^{2}  }\\ V_{A/E}=55.23km/h\\or\\V_{A/E}=15.342m/s

5 0
3 years ago
Read 2 more answers
Please help! The image produced by a concave mirror is ? .
Alexeev081 [22]

Answer:

is a reflection.

The image is real light rays actually focus at the image location). As the object moves towards the mirror the image location moves further away from the mirror and the image size grows (but the image is still inverted). When the object is that the focal point, the image is at infinity.

Explanation:

6 0
3 years ago
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PLEASE HELP AND HURRY
andreyandreev [35.5K]
C
I took the tests earlier hope this helps
7 0
3 years ago
Describe at least TWO hazardous conditions that exist in space AND the technological features a spacecraft must have in order to
nexus9112 [7]

gamma radiation and heat flares from the sun, they use refelective gold sheets

3 0
3 years ago
A horizontal force of 140 N is needed to pull a 60kg box across the horizontal floor at constant speed . Find the coefficient of
____ [38]

Explanation:

formula for force is:

force=mass × acceleration

but in case of friction

force =coefficient of friction × Normal Reaction

F. = u × R

U = F/R

but when placed horizontally

R= M×G

M=mass=60kg

G=Gravity(10m/s or 9.8m/s)

F=140N

U=140/60×10

U=140/600

U=0.2333333333

approximately to 3 significant figures

U=0.233

if i am correct rate it 5 star

4 0
1 year ago
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