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cestrela7 [59]
3 years ago
14

How do light waves and sound waves compare ( CHOOSE 2 ANSWERS )

Physics
2 answers:
galben [10]3 years ago
4 0
The answer would be c not that sure tho
Snowcat [4.5K]3 years ago
3 0
I believe it’s c and d sorry if I’m wrong
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How much work can a 22kw car engine do in 60 seconds
Sindrei [870]

Answer:

13.2 x 10^5 J

Explanation:

Power = work/time

Given

Power = 22kw

= 22 x 1000 = 22000w

Time = 60 secs

Therefore

22000 = work/60

Cross multiply

Work = 22000 x 60

= 1320000

= 13.2 x 10^5J

6 0
3 years ago
Read 2 more answers
Find the total displacement of a mouse that travels 1.0m north and then 0.8m south.
Neko [114]
           In this case two vectors are colinear and they have an opposite orientation.
           N + ( - S ) = N - S = 1 m - 0.8 m = 0.2 m
           Answer:
           The total displacement is 0.2 m north.
 
8 0
4 years ago
An example of unprofessional behavior is?
nika2105 [10]
B, gossiping is unproessional
7 0
3 years ago
Read 2 more answers
HELP I WILL GIVE BRAINLIEST!
Ann [662]

Answer:

Answer:B

Explanation:

Because it all stayed consistant

4 0
3 years ago
Qual a massa de água a 45 °C que devemos misturar com 200 g de água a 15 °C, para que o sistema entre em equilíbrio térmico a 35
Stells [14]

Responda:

400 g

Explicação:

Dado o seguinte:

Deixe Mass (m1) = m em t1 = 45 ° C

Massa (m2) = 200g em t2 = 15 ° C

Equilíbrio térmico (T) = 35 ° C

Usando a relação:

m1 * C * ΔT = m2 * C * ΔT

Onde m1 e m2 são as massas; C = capacidade de calor específico da água e ΔT é a mudança de temperatura

m1 * ΔT = m2 * ΔT

m * (45 ° C - 35 ° C) = 200 * (35 ° C - 15 ° C)

10 * m = 200 * 20

10 * m = 4000

m = 4000/10

m = 400g

5 0
3 years ago
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