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dangina [55]
3 years ago
11

What is the kinetic energy in a 50kg mass moving at 2.6 m/s

Physics
1 answer:
Dvinal [7]3 years ago
5 0
Kinetic energy = 1/2 mv^2

1/2 x 50 x 2.6^2

= 169J
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In an elastic collision between a moving 10-kg mass and a stationary 10-kg mass half the momentum is transferred to the stationa
kow [346]

Answer: C

Explanation:

USAtestprep

8 0
3 years ago
When illuminated with monochromatic light, a double slit produces a pattern that is a combination of single-slit diffraction and
d1i1m1o1n [39]

Answer:

The ratio is  k:d = 1 : 5

Explanation:

From the question we are told that

   The first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern.

Generally the condition for constructive interference for as single slit is  

     ksin(\theta) = n\lambda

Here  k is the width of the slit  and n is the order of the fringe and for single slit n =  1 (cause we are considering the first maxima)

Generally the condition for constructive interference for as double slit is    

        dsin\theta = m\lambda

Here  d is the separation between the  slit  and m is the order of the fringe and for double slit  m  =  5  (cause we are considering the first maxima)

=>     dsin\theta = 5\lambda

So

       \frac{ksin(\theta)}{dsin(\theta)}  = \frac{\lambda}{5\lambda}

=>    \frac{k }{d}  = \frac{1}{5}

So  

      k:d = 1 : 5

5 0
3 years ago
3. Imagine a 10kg block moving with a speed of 20m/s<br> calculate the kinetic energy of this block
MatroZZZ [7]
The formula of the kinetic energy is:
E_{k}  =  \frac{m v^{2} }{2}
where m is a mass of the object, v is speed of the object at the moment of time. So we have:
E_{k}  =  \frac{10* 20^{2} }{2}  = 2000J
The answer is 2000 Joules.
6 0
3 years ago
What factors the weight of an object?
MAVERICK [17]

Answer:

Gravity

Explanation:

5 0
4 years ago
. Which of the following are forces that push upward on an indoor skydiver? Choose all that apply. *
SpyIntel [72]

The forces that push upward on an indoor skydiver are lift force and air resistance.

The forces that act on a skydiver moving downwards includes, gravity due to his weight, air resistance and lift force.

The downward forces on the indoor skydiver include the following;

  • <em>gravity due to its weight</em>
  • <em>downward force due its acceleration</em>

<em />

The upward force on the indoor skydiver include the following;

  • <em>lift force</em>
  • <em>air resistance</em>

Thus, we can conclude that the forces that push upward on an indoor skydiver are lift force and air resistance.

Learn more here:brainly.com/question/8947470

7 0
3 years ago
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