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goldfiish [28.3K]
3 years ago
10

Helpp me

Physics
1 answer:
nikitadnepr [17]3 years ago
8 0
Redrum you have to be here at your place at your park and orange
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4
Blizzard [7]

Answer:

0.2 J

Explanation:

The pendulum forms a right triangle, with hypotenuse of 50 cm and base of 30 cm.  The height of this triangle can be found with Pythagorean theorem:

c² = a² + b²

(50 cm)² = a² + (30 cm)²

a = 40 cm

The height of the triangle is 40 cm.  The height of the pendulum when it is at the bottom is 50 cm.  So the end of the pendulum is lifted by 10 cm.  Assuming the mass is concentrated at the end of the pendulum, the potential energy is:

PE = mgh

PE = (0.200 kg) (9.8 N/kg) (0.10 m)

PE = 0.196 J

Rounding to one significant figure, the potential energy is 0.2 J.

6 0
3 years ago
I DONT NEED ANYONE TO ANSWER QUESTION BUT IS THERE ANYONE THAT CAN HELP ME ON QUIZZES FOR FREE
pochemuha

Answer:

Not me

Explanation:

Sorry

7 0
3 years ago
Read 2 more answers
What are the principles that no
solmaris [256]

Answer:

There are seven principles that form the content grounds of our teaching framework:

Non-maleficence. ...

Beneficence. ...

Health maximisation. ...

Efficiency. ...

Respect for autonomy. ...

Justice. ...

Proportionality.

5 0
2 years ago
A girl with a mass of 27 kg is playing on a swing. There are three main forces
N76 [4]

The tension in the swing's chain at the bottom of the swing is 178.35 N.

The given parameters:

  • Mass of the girl, m = 27 kg
  • Speed of the girl, v = 3 m/s
  • Radius of the circle, r = 4 m

The tension in the swing's chain at the bottom of the swing is calculated as follows;

T = mg + ma_c\\\\ T= mg + \frac{mv^2}{r} \\\\T = (12 \times 9.8) + (\frac{27 \times 3^2}{4} )\\\\T = 117.6 \ N \ + \ 60.75 \ N\\\\T = 178.35 \ N

Thus, the tension in the swing's chain at the bottom of the swing is 178.35 N.

Learn more about tension in vertical circle here: brainly.com/question/19904705

3 0
2 years ago
A negatively charged rod of finite length carries charge with a uniform charge per unit length. Sketch the electric field lines
stiv31 [10]

Answer:

In the case of a negatively charged rod, the field lines points radially towards the rod.

Explanation:

Field lines pointing towards the negatively charged rod are used to represent the nature of an electric field. Field lines always points in a direction, i.e If the charge is positive, field lines points radially away from the rod and if the charge is negative the field lines points radially towards the rod. So in the case of a negatively charged rod, the field lines points radially towards the rod.

3 0
3 years ago
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