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jek_recluse [69]
3 years ago
15

A train travels 225 kilometers in 2.5 hours. What is the train’s average speed?

Physics
2 answers:
ella [17]3 years ago
7 0
The train travells at he speed of 225 km/2.5h
now
225km=225000m
2.5 hr=150min=9000s
=>avg sp of train is=225000/9000s=25m/s
satela [25.4K]3 years ago
7 0

Answer:

562.5

Explanation:

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3 years ago
an object 5 cm in size is placed at 30 cm in front of a concave mirror of focal length 45 CM at what distance from the mirror sh
Makovka662 [10]

Answer: Given: h₀=5cm

p=30cm

hi

f=45cm

require: q=?

hi=?

formulas:

1/f=1/p+1/q

hi/h₀=q/p

calculations:1/q=1/f-1/p

1/q=1/45-1/30

1/q=0.022=0.033

1/q=  =    -0.011

q=1/-0.011

q=   -90.91cm

hi=p × h₀/q

hi=30ₓ5/-90.91

hi=150/-90.91

hi= -1.65cm

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3 0
3 years ago
When acceptance and love are given to another only when certain expectations or standards are met, __________ is being demonstra
Anna71 [15]

Answer:

<u><em>conditional positive regard</em></u>

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7 0
3 years ago
In deep space (no gravity), the bolt (arrow)
salantis [7]

t  = 0.527 s

<u>It accelerates for 0.527 s.</u>

<u>Explanation:</u>

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v = u+at

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v = 106 m/s

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v = u+at

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t     = 0.527 s

4 0
3 years ago
John, paul, and george are standing in a strawberry field. paul is 14.0 m due west of john. george is 36.0 m from paul, in a dir
sdas [7]

Position of paul with respect to john is given as

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position of George with respect to Paul is given as 36 m in direction 37 degree south of east

r_{GP} = r_G - r_p = 36cos37\hat i - 36 sin37\hat j

now we need to find the position of George with respect to John

r_{GJ} = r_G - r_j[\tex]now for the above equation we can add the two equations[tex]r_{Gj} = -14\hat i + 36 cos37\hat i - 36sin37\hat j

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7 0
3 years ago
Read 2 more answers
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