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
Sladkaya [172]
3 years ago
8

Give two examples of direct current electricity.​

Physics
1 answer:
ludmilkaskok [199]3 years ago
6 0

Answer:

<h3>Ion beams and Electrochemical are two examples of direct current electricity.</h3>
You might be interested in
In the circuit described by the diagram, which pair of resistors is connected in parallel?
scoundrel [369]

Option 4 ( R2 and R3 ) is the correct answer.

Explanation:

  • In the below given diagram, we can see a circuit diagram that has four resistors such as R1, R2, R3, and R4.
  • The opening of the circuit is noted as "a" and the ending is noted as "b".
  • By observing the above diagram, we can clearly see that R2 and R3 are the pair of resistors that are connected in a parallel manner.
  • Where all the other resistors such as R1 and R4 are neither connected in parallel nor in series.

Hence we can conclude that Resistor R2 and R3 are the ones that are connected in parallel.

6 0
4 years ago
Please help me as soon as possible.
Vilka [71]

Answer:

true

Explanation:

5 0
3 years ago
A roller coaster car drops a maximum vertical distance of 35.4 m. Part A Determine the maximum speed of the car at the bottom of
TEA [102]

Answer:

Explanation:

Maximum vertical distance or height = h = 35.4 m

let's consider the initial speed at the top is zero.

As the roller coaster is coming from top to bottom there is the conversion of gravitational potential energy into kinetic energy. So we will consider the law of conservation of energy.

As in this case,

Loss in potential energy = Gain in Kinetic energy

mgh = 1/2mv²

mass will cancel out will mass.

gh = 1/2 v²

v = √2gh

v = √2×9.8×35.4

v =√693.84

v = 26.34 m/s

The rollar coaster will have the maximum speed of 26.34 m/s when it reaches the bottom if we ignore the frictional forces.

6 0
3 years ago
Read 2 more answers
A wave is traveling down a string at 15 m/s. A snapshot of the wave is shown in the figure below.
max2010maxim [7]

(a) Amplitude=1.5 m

Amplitude is the maximum distance from the mean (zero disturbance) position.Here amplitude= 1.5 m

(b) wavelength= 2 m

Wavelength is the length of one complete wave or distance traveled by a wave in a time equal to Time Period. Here wavelength= 2 m

(c) Frequency=7.5 Hz

using equation for wave velocity V= f λ

15= f (2)

f=7.5 Hz

so frequency=7.5 Hz

(d) Time period= 0.133 s

Time period= T= 1/f

T= 1/7.5

T=0.133 s

so time period=0.133 s

5 0
3 years ago
suppose that two objects attract each other with a gravitational force of 32 newtons. if the distance between the two objects is
grandymaker [24]

Taking into account the Universal Law of Gravitation, the force of attraction between the tow objects is 8 N.

<h3>Universal Law of Gravitation</h3>

The Universal Law of Gravitation establishes that bodies, by the simple fact of having mass, experience a force of attraction towards other bodies with mass, called gravitational force.

The Universal Law of Gravitation states that the gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance that separates them.

Mathematically it is expressed as follows:

F=G\frac{Mm}{d^{2} }

where:

  • G is the universal gravitational constant, with a value of 6.67×10⁻¹¹ \frac{Nm^{2} }{kg^{2} }.
  • M and m are the masses of the bodies that interact.
  • d is the distance that separates them.

<h3>Force of attraction in this case</h3>

In this case, two objects attract each other with a gravitational force of 32 newtons. The distance between the two objects is doubled.

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Then, if the separation distance between two objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (d²= 2²= 4). The new force is then \frac{1}{4} of the original:

F=\frac{1}{4}×Foriginal

F=\frac{1}{4}×32 N

<u><em>F= 8 N</em></u>

Finally, the force of attraction between the tow objects is 8 N.

Learn more about the Universal Law of Gravitation:

brainly.com/question/15967105

brainly.com/question/11359658

#SPJ1

6 0
2 years ago
Other questions:
  • Which of the following statements are true? (There may be more than one correct choice.)
    14·1 answer
  • An upward moving object must be experiencing (or at least usually does experience) an upward force.
    12·1 answer
  • As temperature increases what energy decreases
    10·1 answer
  • A uniform disk of mass m = 2.4 kg and radius R = 25 cm can rotate about an axle through its center. Four forces are acting on it
    11·1 answer
  • The first PCS technology used a form of time division multiplexing called ____.​ a. ​Time Division Multiple Access (TDMA) b. ​Gl
    10·1 answer
  • What is the velocity of a snail that travels 0.20 meters in 1 minute
    10·1 answer
  • A body initially at 100°C cools to 60°C in minutes and to 40°C. The temperature of body at the end of 15 minutes will be​
    8·1 answer
  • Which of the following statements best describes chromatic aberration?
    6·1 answer
  • Please help 24 POINTS
    11·1 answer
  • Due to historical difficulty in delivering supplies by plane, one of your colleagues has suggested you develop a catapult for sl
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!