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masha68 [24]
2 years ago
13

A cat has a mass of 3 kg and runs at a speed of 6 m/s. How much kinetic

Physics
2 answers:
kupik [55]2 years ago
7 0

Answer:

kinetic \: energy =  \frac{1}{2}  \times m {v}^{2}

1/2 × 3 × 6² = 54J

Maslowich2 years ago
3 0

Answer:

54 Joules

Explanation:

recall that kinetic energy is governed by the equation:

K.E = (1/2) mv²

where,

m = mass = given as 3 kg

v = velocity = given as 6 m/s

Substituting these known values into the above equation,

K.E = (1/2) mv²

K.E = (1/2) (3)(6)²

K.E = 54 Joules

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harkovskaia [24]
Avogadro's mole is a number, like 6.023 *10^23

your question is the equivalent of asking if 100 feathers or 100 bricks weigh more

the mole of bricks would weigh more
 
6 0
2 years ago
An archer defending a castle is on an 15.5 m high wall. He shoots an arrow straight down at 22.8 m/s. How much time does it take
kodGreya [7K]

Answer:

  about 602 milliseconds

Explanation:

The motion can be approximated by the equation ...

  y = -4.9t^2 -22.8t +15.5

where t is the time since the arrow was released, and y is the distance above the ground.

When y=0, the arrow has hit the ground.

Using the quadratic formula, we find ...

  t = (-(-22.8) ± √((-22.8)^2 -4(-4.9)(15.5)))/(2(-4.9))

  = (22.8 ± √823.64)/(-9.8)

The positive solution is ...

  t ≈ 0.60195193

It takes about 602 milliseconds for the arrow to reach the ground.

8 0
3 years ago
True or false: Relative to the shoreline, a boat always moves in the direction in which it is pointing.
Alja [10]

Answer:

False

Explanation:

A boat can go reverse like a car

3 0
2 years ago
Name another way that energy is made
Elodia [21]

<em>Answer:</em>

<em> </em>

<em>The three major categories of energy for electricity generation are fossil fuels (coal, natural gas, and petroleum), nuclear energy, and renewable energy sources. Most electricity is generated with steam turbines using fossil fuels, nuclear, biomass, geothermal, and solar thermal energy.</em>

<em />

<em />

3 0
2 years ago
Read 2 more answers
- Which of the following cannot be a unit for work?<br>A. Joule <br>B. N.m<br>C. Kilowatt<br>D. All​
shusha [124]

Answer:

joule

Explanation:

is for work it is also repreasent by SI

4 0
2 years ago
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