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
Naya [18.7K]
3 years ago
14

Which of the following ways is usable energy lost?

Physics
2 answers:
Vsevolod [243]3 years ago
5 0
The answer to your question is D all of the above
tamaranim1 [39]3 years ago
4 0
A. Friction or all of the above
You might be interested in
4. Name three things that all games, no matter where they are played around the world, have in common.
lilavasa [31]

Answer:

Key components of games are goals, rules, challenge, and interaction.

Explanation:

Hope I helped.

3 0
3 years ago
Read 2 more answers
g a mass of 1.3 kg is pushed horizontally against a massless spring with a spring constant of 58 n/m until the spring compresses
ExtremeBDS [4]

Answer: 1.102\ J

Explanation:

Given

Mass m=1.3\ kg

Spring constant k=58\ N/m

Compression in the spring x=19.5\ cm\ or\ 0.195\ m

When the mass leaves the spring, the elastic potential energy of spring is being converted into kinetic energy of mass i.e.

\Rightarrow \dfrac{1}{2}kx^2=\dfrac{1}{2}mv^2\\\\\Rightarrow \dfrac{1}{2}\cdot 58\cdot (0.195)^2=\dfrac{1}{2}mv^2\\\\\Rightarrow \dfrac{1}{2}mv^2=1.102\ J

The kinetic energy of the mass is 1.102 J.

5 0
3 years ago
Bill was really bored at work. During his break, he decided to check his carotid artery. He placed both fingers on his neck and
Sergeeva-Olga [200]

Answer:

72 beats per minute

Explanation:

Heart beat causes the flow of blood round the body. This heart beat can be felt as pulse in the wrist or neck carotid artery. The heart rate which is measured in beats per minute (BPM) is used to determine the number of heart beats per minute.

You can calculate your BPM using the carotid artery found in the neck close to the windpipe.

Given that for 20 seconds, Bill had a total of 24 beats.

60 seconds = 1 minute.

Hence,  Bill's BPM = (24 beats per 20 seconds) * (60 seconds per minute) = 72 beats per minute

5 0
3 years ago
Complete the sentence
DaniilM [7]
Magnetic and gravitational
7 0
3 years ago
Read 2 more answers
A series RLC circuit containing a resistance of 12Ω, an inductance of 0.15H and a capacitor of 100uF are connected in series acr
Artyom0805 [142]

Answer:

Impedance = 19.44ohms

Current = 5.14A

Power factor = 0.62

Explanation:

Impedance in an RLC AC circuit is defined as the total opposition to the flow of current in the resistor, inductor and capacitor.

Impedance Z = √R²+(Xl-Xc)²

Where R is the resistance = 12Ω

Inductance L = 0.15H

Capacitance C = 100uF = 100×10^-6F

Since Xl = 2πfL and Xc = 1/2πfC where f is the frequency.

Xl = 2π×50×0.15

Xl = 15πΩ

Xl = 47.12Ω

Xc = 1/2π×50×100×10^-6

Xc = 100/π Ω

Xc = 31.83Ω

Z =√12²+(47.12-31.83)²

Z = √144+233.78

Z = 19.44Ω

Impedance = 19.44ohms

To calculate the circuit current, we will use the expression V=IZ where V is the supply voltage = 100V

I = V/Z = 100/19.44

I = 5.14Amperes

To calculate the power factor,

Power factor = cos(theta) where;

theta = arctan(Xl-Xc)/R

theta = arctan(47.12-31.83)/12

theta = arctan(15.29/12)

theta = arctan1.27

theta = 51.78°

Power factor = cos51.78°

Power factor = 0.62

4 0
3 years ago
Other questions:
  • How do darwin finches illistrate the thoery of natural selection
    11·1 answer
  • The velocity of a wave is the product of the frequency and the
    13·2 answers
  • What is the kinetic energy of an object that has a mass of 50.0kg and a velocity of 18 m/s?
    6·1 answer
  • Which describes the transformation of chemical energy into mechanical energy and why?
    10·2 answers
  • Could anyone help with question 7?
    6·2 answers
  • Find the missing number for each unit rate? 10/2 =?/1 and 16/4=?/1
    14·1 answer
  • Select the correct answer. Which event is an example of distress (or negative stress)? A. Moving to a new city B. Getting a new
    14·1 answer
  • Need help ASAP please and thank you
    13·1 answer
  • Why is the light bulb not a closed system?
    6·1 answer
  • Which material is more closely related to the styrofoam? a. heat exchanger b. diffuser c. insulator d. electrical conductor
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!