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Nataly_w [17]
3 years ago
9

Mary finishes a marathon at a speed of 2 m/s. If her

Physics
1 answer:
Snezhnost [94]3 years ago
5 0

Explanation:

v2 = v1 + at

v2 final speed

v1 initial speed

a acceleration

t time

2 = 0 + 4 a

a = 1/2

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. Assume you have a dot grid with 36 dots per sq.in. How many acres are represented by each dot using the following map scales:
elixir [45]

Answer:

a) 0.069 acres

b) 0.114acres

c) 17.78acres

Explanation:

1 dot=1/36sqin

a) 1 sqin= 330×330=108900ft^2

1 dot=108900/36 =3025ft^2

Converting to acre,divide by43560

3025/43560 =0.069acre

b) 1 chain =22 yards

25×22=550yards

Converting to acre divide by 4840

550/4840 =0.114acre

c)1 sqmile =640acres

(1/36) ÷ 640

640/36

17.78acres

4 0
3 years ago
A motorcycle drives up a steeply inclined ramp. The work done on the motorcycle by the Earth’s gravitational force is ____. 1.
Leto [7]

Answer:

be

Explanation:

8 0
3 years ago
It is August 1st and you are at a Science Camp in Florida. During an outdoor science quiz, you are asked to identify the tempera
KonstantinChe [14]
Fahrenheit because the boiling point of water is 100 degrees Celsius which is 212 Fahrenheit which is very hot, and that would be about 200 Kelvin so therefore the answer is that the temperature was recorded in Fahrenheit not Kelvin or Celsius  
3 0
4 years ago
Two blocks of masses 20 kg and 8.0 kg are connected togetherby
Dmitry [639]

Answer:

The tension is 14 N

Explanation:

For this problem we have to use newton's law, so:

F=m*a

The second string is connected to the mass of 8 kg, but the mass of 8 kg is connected to the mass of 20kg, so we can say that the second string is handling the two masses. so:

F=28kg*0.5\frac{m}{s^2}=14N

3 0
3 years ago
Potential energy results from the ____________________________ or position of an object.
krok68 [10]

Answer:

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3 years ago
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