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Marta_Voda [28]
3 years ago
14

A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5 m/s.

Physics
1 answer:
nignag [31]3 years ago
4 0
The kinetic energy (KE) is 250 J and the gravitational potential energy (GPE) is 392 J
You might be interested in
?
Nana76 [90]

Answer:

Electron shell

Nucleus

Neutrons

Explanation:

An atom is made up of three fundamental subatomic particles which are the protons, neutrons and electrons.

  • Protons are the positively charged particles. Neutrons do not carry any charges.
  • Both protons and neutrons are found in the tiny nucleus at the center of that atom.
  • The electrons are negatively charged.
  • They are found outside the nucleus in electronic shells.
5 0
3 years ago
The velocity as a function of time of a moving particle is given by v = α+ βt2 , where α and β are constants and t is time in s.
marin [14]

The acceleration of the particle at 3s is [tex]a = 6 \beta [/tex]

v  =  \alpha  +  \beta {t}^{2}

<h3>How to calculate acceleration </h3>

a =  \frac{dv}{dt} \\ v =  \alpha  +  \beta  {t}^{2} \\ \frac{dv}{dt}  = 0 + 2 \beta t \\

if Time is given as 3s

therefore, Acceleration is

a = 2 \beta t \\ a = 2 \beta 3 \\ a = 2 \times  \beta  \times 3 \\ a = 6 \beta

Acceleration is

a = 6 \beta

Read more about velocity:

brainly.com/question/19365526

6 0
3 years ago
A 570 kg elevator accelerates downwards at 1.5 m/s2 for the first 13 m of its motion.
jeka94
  • Mass of the elevator (m) = 570 Kg
  • Acceleration = 1.5 m/s^2
  • Distance (s) = 13 m
  • Let the force be F.
  • We know, F = ma,
  • Therefore, F = (570 × 1.5) N = 855 N
  • Angle between distance and force (θ) = 0°
  • We know, work done = F s Cos θ
  • Therefore, work done by the cable during this part
  • = (855 × 13 × Cos 0°) J
  • = (855 × 13 × 1) J
  • = 11115 J

<u>Answer</u><u>:</u>

<u>1</u><u>1</u><u>1</u><u>1</u><u>5</u><u> </u><u>J</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

6 0
3 years ago
A cheetah runs with a constant speed of 8 m/s. How far has the cheetah gone after 25 seconds?
Radda [10]
Multiply 25 * 8 = 200
So the cheetah has gone 200 miles in 25 seconds
7 0
3 years ago
Read 2 more answers
What TWO things happen to solar radiation that reaches earth?
-Dominant- [34]
The energy of the reflected radiation<span> goes back into outer space. The other 70% of </span>solar<span> radiation that gets to </span>Earth<span> is absorbed. Most of the energy is absorbed by oceans, landforms, and living </span>things<span>. </span>
4 0
3 years ago
Read 2 more answers
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