1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aliya0001 [1]
3 years ago
7

Olivia is on a swing at the playground.

Physics
1 answer:
balu736 [363]3 years ago
5 0

Olivia is on a swing at the playground. The kinetic energy is increasing and her potential energy decreasing at point X.

<h3>What is kinetic energy and potential energy?</h3>

The kinetic energy of an object is the ability to do work by virtue of its motion and potential energy is the ability to do work by virtue of its position.

At point W and Z, Olivia is at the maximum displacement from the mean position, where kinetic energy is zero and potential energy is maximum.

At point Y, it is approaching to increase its potential energy and decreasing kinetic energy. Opposite to this, at point X, kinetic energy is increasing and potential energy is decreasing.

Thus, the kinetic energy is increasing and her potential energy decreasing at point X.

Learn more about  kinetic energy and potential energy.

brainly.com/question/15764612

#SPJ1

You might be interested in
What must be known to determine the direction of the magnetic force on a charge? Check all that apply.
sergeinik [125]
The strength of the magnetic field
8 0
3 years ago
Read 2 more answers
3. Describe how sound signals can be transmitted from a cell phone and received by another cell phone.
BartSMP [9]

Answer:

The sound energy travels through the air into the microphone and makes the diaphragm inside vibrate. The sound energy in your voice makes the air vibrate. Vibrating air carries the sound energy into the phone. The diaphragm in the mouthpiece microphone converts sound energy into electrical energy.

Explanation: Hope this helps! :)

4 0
3 years ago
If an R = 1-kΩ resistor, a C = 1-μF capacitor, and an L = 0.2-H inductor are connected in series with a V = 150 sin (377t) volts
fgiga [73]

Answer

given,

R = 1-kΩ  = 1000 Ω

C = 1-μF

L = 0.2-H

V = V_max sin( ω t)

comparing

V = 150 sin ( 377 t)

ω = 377

\chi_c = \dfrac{1}{\omega C}

\chi_c = \dfrac{1}{377 \times 1 \times 10^{-6}}

\chi_c = 2652.5\Omega

\chi_L =377 \times 0.2

\chi_L =75.4\ \Omega

Impedance,

Z = \sqrt{R^2+(\chi_L-\chi_c)^2}

Z = \sqrt{1000^2+(75.4 -2652.5)^2}

Z = 2764.3 Ω

now,

V_{max} = 150 V

I_{max} = \dfrac{V}{Z}

I_{max} = \dfrac{150}{2764.3}

I_{max} = 0.0543

I_{max} = 54.3\ mA

3 0
3 years ago
When a 20.0-ohm resistor is connected across the terminals of a 12.0-V battery, the voltage across the terminals of the battery
Gelneren [198K]

Answer:

B. 0.51 ohms

Explanation:

Our data is as follows:

Resistor R = 20.0ohms

V1 = 12 volts

V2 = 0.300 V

We are to get the internal resistance of this battery

Now,

I = change in voltage/R

Change in voltage = v1-v2

= 12-0.300

= 11.7

Then,

I = 11.7/20

= 0.585Ri

Now

O.300 = 0.585Ri

Ri = 0.300/0.585

= 0.51 ohms

This is therefore the internal resistance of the battery.

Thank you!

6 0
3 years ago
Why I’d it important to define a frame of reference?
Harman [31]

Answer:

so two people can understand each other when presenting new ideas to each other

Explanation:

3 0
2 years ago
Other questions:
  • If a moving car speeds up until it is going twice as fast, how much kinetic energy doe s it have compared with its initial kinet
    11·1 answer
  • I want to know how far I traveled on my 21-speed bike. I know the speed I went (2.5 m/s) and I know that my bike ride was 45 min
    7·1 answer
  • A 30-microfarad capacitor is charged to 90 v and then connected across an initially un charged capacitor of unknown capacitanc c
    10·1 answer
  • Why would your weight be different on the moon than on earth?
    14·1 answer
  • If you push a 900N refrigerator with the same force as you lift a 40N dumbbell, the dumbbell will move faster. Which of Newton’s
    11·1 answer
  • On his fishing trip Justin rides in a boat 12 km south. The fish aren’t biting so they go 4 km west. They then follow a school o
    5·2 answers
  • The deep scattering layer (DSL):_________
    12·1 answer
  • A carver begins work on the block of granite that weighs 2700g which has a density of 2.7g / cm . What is the volume of the gran
    7·1 answer
  • Planet A has a mass of 2.25 x 1020 kg, while planet B has a
    7·2 answers
  • Review. One electron collides elastically with a second electron initially at rest. After the collision, the radii of their traj
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!