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3 years ago

2. An object goes from a speed of 9 m/s to a total stop (Om/s) in 3 s. What

Physics

1 answer:

xxMikexx [17]3 years ago

5 0

Acceleration = (0-9) / 3 = -3m/s^2

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anyanavicka [17]

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3 years ago

Infer which group you would expect to contain element 117. Use the periodic table to help you answer this question.

Gre4nikov [31]

Answer:

halogen group

Explanation:

6 0

2 years ago

A student applies a 10 N force to a wood block with a mass of 5 kg. The block is pushed across four different surfaces. The acce

Furkat [3]

The complete question is as follows: A student is subjected to a reaction force of 10 N northward from a 5 kg block while pushing the block over a smooth, level surface. Ignoring friction, what is the acceleration of the block?

Answer: The acceleration of the block is $2 m/s^{2}$ .

Explanation:

Given: Force = 10 N

Mass = 5 kg

It is known that force applied on an object is the product of mass and acceleration.

Mathematically, $F = m \times a$

where,

F = force

m = mass

a = acceleration

Substitute the values into above formula as follows.

$F = m \times a\\10 N = 5 kg \times a\\a = \frac{10}{5}\\= 2 m/s^{2}$

Thus, we can conclude that the acceleration of block is $2 m/s^{2}$ .

8 0

2 years ago

A boulder released by a rockslide rolls 60 m in 4 s. What is its average speed?

Gelneren [198K]

Answer:

15 m per second

900m per minute

54,000 per hour

Explanation:

60 divided by 4 to get per second then times 60 for per minutes

then times 60 to get per hour

5 0

3 years ago

Considere que helicóptero para na altitude a que voava para largar uma caixa de 90 kg para o solo.

Firdavs [7]

Answer:

El peso es de 882 newton.

Explicación:

El helicóptero se detiene a la altura en la que volaba para dejar caer una caja de 90 kg al suelo, el peso de la caja llega hasta los 882 Newton porque el peso es una fuerza dirigida hacia el centro de la tierra y depende de la gravedad. La fórmula del peso es multiplicar la masa por la gravedad, de modo que cuando se multiplican 90 kg de masa por 9,8 metros / seg2, obtenemos el peso del objeto que es 882 newton.

7 0

3 years ago