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nikitadnepr [17]
3 years ago
13

A dog has a mass of 12 kg. What is its weight? Round your answer to the nearest whole number. The dog weighs ___ N.

Physics
2 answers:
iris [78.8K]3 years ago
7 0
Weight=mass×gravity

w=12×9,8=117.6N
White raven [17]3 years ago
6 0
Weight is very similar to Force. Force = mass*acceleration.
Similarly Weight = mass * gravity.
So dog weigh = 12kg*9.8m/s^2 =117.67 Newton (N)
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12345 [234]

Answer:

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3 years ago
Light of wavelength 436.1 nm falls on two slits spaced 0.31 mm apart. What is the required distance from the slits to the screen
kakasveta [241]

Answer:

The correct answer is "4.26 m".

Explanation:

Given:

Wavelength,

\lambda = 436.1 \ nm

or,

  =436.1\times 10^{-9} \ m

Distance,

d = 0.31 \ mm

or,

  =0.31\times 10^{-3} \ m

Distance between the 1st and 2nd dark fringes,

(y_2-y_1) = 6\times 10^{-3} \ m

As we know,

⇒ \frac{d}{L} (y_2-y_1) = \lambda

or,

⇒ L=\frac{d(y_2-y_1)}{\lambda}

By substituting the values, we get

       =\frac{0.31\times 6\times 10^{-6}}{436.1\times 10^{-9}}

       =\frac{0.31\times 6\times 10^3}{436.1}

       =\frac{1860}{436.1}

       =4.26 \ m

3 0
3 years ago
A heavy ball with a weight of 150 N is hung from the ceiling of a lecture hall on a 4.1-m-long rope. The ball is pulled to one s
AlladinOne [14]

Answer:

The tension in the rope is 262.88 N

Explanation:

Given:

Weight W = 150 N

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Initial speed of ball v = 5.5 \frac{m}{s}

For finding the tension in the rope,

First find the mass of rod,

mg = 150                          ( g = 9.8 \frac{m}{s^{2} } )

  m = \frac{150}{9.8}

  m = 15.3 kg

Tension in the rope is,

  T = mg + \frac{mv^{2} }{r}

  T = 150 + \frac{15.3 \times (5.5)^{2} }{4.1}

  T = 262.88 N

Therefore, the tension in the rope is 262.88 N

7 0
3 years ago
What is the highest and lowest frequency a human being can hear​
nata0808 [166]

Every person is different.  But for a planet-wide overall average that roughly represents all human beings on Earth, the figures usually used are:

from  20 Hz  to  20,000 Hz .

6 0
3 years ago
What does the change of motion of an object depend on?
IrinaVladis [17]

Answer:

I think the answer is B

Explanation:

4 0
3 years ago
Read 2 more answers
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