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Phantasy [73]
3 years ago
7

What is the displacement and explain

Physics
1 answer:
34kurt3 years ago
4 0
Displacement implies that an object has moved, or has been displaced. Displacement is also a vector and it means that it has a direction as well as a magnitude and is represented visually as an arrow that points from the initial position to the final position.
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ANS: F= 260 N=2.60x10^2 N
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When a cold can of soda is insulated, the heat flow into the can on a hot day ____. a. increases c. stays the same b. decreases
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The answer is decrease
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Explanation:

2. The image formed in a diverging lens is always virtual.

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An ambulance is currently traveling at 15m/s, and is accelerating with a constant acceleration of 5 m/s^2. The ambulance is atte
Lorico [155]
  • initial velocity=15m/s=u
  • Acceleration=a=5m/s^2
  • Final velocity=v=30m/s
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Using 3rd equation of kinematics

\\ \rm\longmapsto v^2-u^2=2as

\\ \rm\longmapsto s=\dfrac{v^2-u^2}{2a}

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5 0
3 years ago
4. Calculate the kinetic energy of a 4.7 kg object moving at a speed of 7 m/s. SHOW YOUR WORK
SashulF [63]

Answer:

\boxed {\boxed {\sf 115.15 \ J}}

Explanation:

Kinetic energy is the energy an object possesses due to motion. It is calculated with the following formula.

E_K= \frac{1}{2} mv^2

The mass of the object is 4.7 kilograms. The velocity of the object is 7 meters per second.

  • m= 4.7 kg
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Substitute the values into the formula.

E_K= \frac{1}{2} (4.7 \ kg)(7 \ m/s)^2

Solve the exponent.

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E_K= \frac{1}{2} (4.7 \ kg)(49 \ m^2/s^2)

Multiply the numbers together.

E_K = 2.35 \ kg * 49 \ m^2/s^2

E_K= 115.15 \ kg*m^2/s^2

Convert the units. 1 kilogram square meter per square second is equal to 1 Joule.

E_K= 115.15 \ J

The object has <u>115.15 Joules</u> of kinetic energy.

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2 years ago
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