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katovenus [111]
3 years ago
6

Freddy drives 4 miles east to his friends house. He then travels 9 more miles east to the supermarket. Finally on his way back h

ome he runs out of gas 6 miles after leaving the supermarket. (A) What distance did Freddy travel? (B) What was Freddy's total displacement?
Physics
1 answer:
NARA [144]3 years ago
6 0
It’s B just took the test your welcome
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2. Two cars A and B are heading forward. The velocity of A and B are 30 m/s and 20 m/s
KengaRu [80]

Answer:

A.) 27000 kgm/s

18000 kgm/s

B.) Va = 22 m/s

C.) 19800 kgm/s

25200 kgm/s

Explanation: Given that the velocity of A and B are 30 m/s and 20 m/s. And of the same mass M = 9 × 10^5g

M = 9×10^5/1000 = 900 kg

A.) Initial momentum of A

Mu = 900 × 30 = 27000 kgm/s

Initial momentum of B

Mu = 900 × 20 = 18000 kgm/s

B.) if they have an accident and then the velocity of the B is 28 m/s, find out velocity of A.

Momentum before impact = momentum after impact

Given that Vb = 28 m/s

27000 + 18000 = 900Va + 900 × 28

45000 = 900Va + 25200

900Va = 45000 - 25200

900Va = 19800

Va = 19800/900

Va = 22 m/s

C.) Momentum of A after impact

MV = 900 × 22 = 19800 kgm/s

Momentum of B after impact

MV = 900 × 28 = 25200 kgm/s

8 0
3 years ago
A 50Kg girl jumps off a 5-meter-high diving board. What is her kinetic energy right before she
omeli [17]

Answer:

D is the correct answer

Explanation:

Ek=m*g*h=50*9.8*5=2450

7 0
2 years ago
What are the values of the missing forces<br><br> A.<br> B.
g100num [7]

Answer:

X and Y forces must balance:

Fb = 150 N

Fa = 75 N

3 0
3 years ago
Determine the values of m and n when the following mass of the Earth is written in scientific notation: 5,970,000,000,000,000,00
yuradex [85]

Explanation:

Mass of the Earth is equal to,

m=5,970,000,000,000,000,000,000,000\ kg

Any number can be written in the form of scientific notation as :

N=m\times 10^n

m is the real number

n is any integer

Mass of the earth can be written in the form of scientific notation as :

m=5.97\times 10^{24}\ m

Here,

m = 5.97

n = 24

Hence, this is the required solution.                                                      

7 0
3 years ago
Warm air rising is part of a __________________________ current.
adelina 88 [10]

Answer:

Thermal

Explanation:

4 0
2 years ago
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