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Afina-wow [57]
3 years ago
6

X = 1/2 a t square Help me please

Physics
1 answer:
S_A_V [24]3 years ago
5 0
How can I help? What’s the question?
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What came first the chicken or the egg? (this is just a point give away)
Molodets [167]

The chicken comes first

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4 years ago
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Select the correct answer. In a given chemical reaction, the energy of the products is greater than the energy of the reactants.
ioda
B. Energy is released in the reaction... just looked it up!
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3 years ago
A karate master strikes a board with an initial velocity of 10.0 m/s, decreasing to 1.0 m/s as his hand passes through the board
kenny6666 [7]

The force exerted on the board by the karate master given the data is -4500 N

<h3>Data obtained from the question </h3>
  • Initial velocity (u) = 10 m/s
  • Final velocity (v) = 1 m/s
  • Time (t) = 0.002 s
  • Mass (m) = 1 Kg
  • Force (F) = ?
<h3>How to determine the force</h3>

The force exerted can be obtained as illustrated below:

F = m(v - u) / t

F = 1 (1 - 10) / 0.002

F = (1 × -9) / 0.002

F = -4500 N

Learn more about momentum:

brainly.com/question/250648

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6 0
2 years ago
A book falls off the desk and makes a sound when it hits the floor. The sound wave that travels through the air is
Andreas93 [3]

The sound wave that travel through the are is called the <em>amplitude</em> or <em>frequency you can use either of them because there both correct.</em>

6 0
3 years ago
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A group of rescue workers is rescuing a dog from a condemned building. Due to demolition, the building has no stairs leading to
zaharov [31]

Answer:

Minimize the elevation or jump distance

Explanation:

The only action that minimizes, the impact force is to reduce as much as possible the height of the jump, the dog, ie the height from the jump point of the building. Since at the time of the jump its speed will increase every second at the rate of 9 [m/ s], that is this low effect of the gravitational acceleration of 9 [m/s^2]

v_{f}=\sqrt{2*g*h}

where:

vf = final velocity [m/s]

g = gravity [m/s^2]

h = elevation [m]

As we can see while there is higher height, at a higher speed will impact the ground.

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4 years ago
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