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Usimov [2.4K]
3 years ago
13

When falling through the air, which of the following objects will hit the ground first?

Physics
2 answers:
Zepler [3.9K]3 years ago
8 0

Answer:

A PENNY

Explanation:

JUST TOOK QUIZ

Pavel [41]3 years ago
5 0

Answer:

a penny

Explanation:

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A dog has a mass of 60kg and an acceleration of 2m/s/s. What is the force of the dog?
attashe74 [19]

Answer:

120 N

Explanation:

F=ma therefore 60kg times 2m/s^2 is 120 N

8 0
3 years ago
Sally Sizzle builds a circuit by connecting three resistors in parallel with a 9V battery. The current in this circuit is 3.6 am
Andru [333]

Then answer is C 9 ohms

7 0
3 years ago
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At which location could you place the south pole of a bar magnet so that it would be pulled toward the magnet shown?
stepan [7]

Answer:

The north pole.

Explanation:

3 0
3 years ago
Plz answer the question
Vikentia [17]

Answer:

Ray A = Incidence ray

Ray B = Reflected ray

Explanation:

From the law of reflection,

Normal: This is the line that makes an angle of 90° with the reflecting surface.

Ray A is the incidence ray: This is the ray that srikes the surface of a reflecting surface. The angle formed between the normal and the incidence ray is called the incidence angle

Ray B is the reflected ray: This is the ray leaves the surface of a reflecting surface. The angle formed between the reflected ray and the normal is called reflected angle

3 0
3 years ago
Un tren va a una velocidad de 18m/s frena y se detiene en 15s calcula su aceleracion y la distancia recorrida al frenar
Rudiy27

Answer:

Acceleration is -1.2 m/s² and distance covered is 135 m.

Explanation:

A train going at a speed of 18m / s brakes and stops in 15s calculates its acceleration and the distance traveled when braking

Given that,

The initial speed of the train, u = 18 m/s

Final speed, v = 0

Time, t = 15 s

We need to find acceleration and distance traveled when braking. Let a is acceleration and distance traveled.

Acceleration,

a=\dfrac{v-u}{t}\\\\a=\dfrac{0-18}{15}\\\\a=-1.2\ m/s^2

Using third equation of motion,

v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{0^2-18^2}{2\times (-1.2)}\\\\d=135\ m

Hence, acceleration is -1.2 m/s² and distance covered is 135 m.

3 0
3 years ago
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