A 46 g domino slides down a 30 degrees incline at a constant speed. What is the coefficient of friction?

Answers

Answer 1

Answer:

40

Explanation:

30


Related Questions


11. 2 cm of rain falls in 10 minutes. The rain fall
steady at the rate of 20 m/s. The average
pressure on ground if rain drops comes to rest
after impact is
(a) 0.067 N/m^2
(b) 0.67 N/m^2
(c) 6.7 N/m^2
(d) 67 N/m^2​

Answers

Answer:

WP LA æ WI all all Eduardo whatever Cincinnati quips I was just wondering if you want to be a good day

Un trozo de hielo de 70 g se introduce en 450 g de agua a 23 ºC. ¿Cuál es la temperatura final de equilibrio suponiendo que no hay intercambio de calor entre el sistema y el ambiente?

Answers

Answer:

the answer is 250

Explanation: took the test

what is the relationship between the voltage across the energy
source and the voltages across the lamps in parallel

Answers

In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component. If two or more components are connected in parallel they have the same potential difference ( voltage) across their ends.

Answer:

وؤتي يتنييوتينستصميوخصز ءتث. ثنصطث

What are three other types of new batteries that are being created today? (PLEASE DO NOT GIVE ME ANY LINK, JUST TYPE YOU ANSWER)

Answers

Answer:

Duracell

Amazon Basics 2 Pack CR1616 3 Volt Lithium Coin Cell Battery.

LiCB 20 Pack LR44 AG13 357 303 SR44 Battery 1.5V Button Coin Cell Batteries.

Explanation:

Hope this helps and have a nice day!

does anyone know what the answers are?

Answers

Answer:

Option (C) is the answer

Explanation:

may be it is possible if that we stand so far

A 1.5 kg object is hanging from a spring with a spring constant of 15 N/m on Earth. What is the period of its up-and-down motion?


1.) 0.10 s

2.) 0.31 s

3.) 2.0 s

4.) 2.5 s

Answers

Answer: 3) 2.0

Explanation: I guessed and got it right on my assignment :)

The following three resistors (Ohms) are in parallel with one voltage source. What is the voltage running through the C resistor?

Battery 8
Resistor A 7
Resistor B 6
Resistor C 6

Answers

Answer:

If the resistors are connected in parallel and the battery voltage is 8V, then voltage across resistor C is 8V.

What is force. in your own words

Answers

Answer:

force is a push or pull that exerted on a body

Answer:

force is that push or pull on a body that changes or tends to change the state of rest or of uniform motion in a straight line.

Explanation:

hope this helps

Measuring a liquid's volume indicated the capacity ______ of the holds it. The most common units for expressing liquid volumes are _____ and milliliters.​

Answers

Answer:

Measuring, comparing and estimating liquid volumes are taught using metric units like liters and milliliters and customary units like quart, pints, gallons and more. Capacity is actually the amount of liquid in the container, which is also the volume of a liquid.

Explanation:

Which of ONE of the following four elements has the most metallic properties?

The atomic numbers of the elements are listed below.
12
14
16
17​

Answers

Answer:

12 (Magnesium- Mg)

Explanation:

Looking at the four numbers, we have:

Magnesium, Silicon, Sulfur, and Chlorine.

We can eliminate two of the answers immediately just by looking at the periodic table.

Sulfur and Chlorine are on the nonmetal side of the periodic table. So that's definitely not it. That leaves Magnesium and Silicon.

Silicon is a Metalloid. Magnesium is an Alkaline earth Metal.

Metaloids are elements that have a mix of both metal and nonmetal properties (luster, how it feels, etc.). Since it's a MIX and Magnesium is just straight METAL-

We can say Magnesium has the most metallic properties.

hope this helps!!

The speed of a wave with a frequency of 2 Hz (2/s), an amplitude of 3 m, and a wavelength of 10 m is

options:

0.2 m/s.

12 m/s.

5 m/s.

20 m/s.

Answers

Answer:

5 m/s

Explanation:

your welcome

The speed of a wave equals to Wavelength and Frequency. The SI unit of speed of wave is m/s. Thus, option D is correct.

What is speed of wave?

The speed of wave is distance travelled by the wave in given time. It is related to both wavelength and frequency. Wavelength is measured in meters and frequency in hertz.

From the givens:

Frequency(f) = 2 Hz.

Wavelength(λ) = 10m.

Amplitude = 3m ( Amplitude does not affect the speed of wave)

Speed (v) = λ × f

               = 10 × 2

              = 20 m/s.

Therefore, the speed of the wave is 20 m/s. Hence, Option D is correct.

To learn more about speed of waves :

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Sound travels at different speeds in different mediums. Rank the three mediums sound can travel to from fastest to slowest.

Answers

Answer:

Sound travels at different speeds depending on what it is traveling through. Of the three mediums (gas, liquid, and solid) sound waves travel the slowest through gases, faster through liquids, and fastest through solids.

Sound waves fall into three categories: longitudinal waves, mechanical waves, and pressure waves.

18. A series circuit has an array of light bulbs connected. One burns out.
What will happen to the rest of
the bulbs?
*
Most will also burn out
Half will switch off and half will remain on
They will all remain on
They will all switch off

Answers

they will all switch off

the potential difference across two plates is 1.50 V. if the plates are 8.22*10^-4 m apart, what is the electric field between them?

Answers

Answer: 1820

Explanation:

acellus

To celebrate her upcoming graduation Keysi books a trip on a space party-boat that travels at 99% the speed of light. She tells her mom she'll be "right back" and goes for a 3 day trip around the solar system. If the clocks on her space ship read 3 days, how many days does her mom wait for her to return? *

5 days
9 days
12 days
15 days
21 days
25 days

Answers

21 days is the correct answer

Two point charges are separated by a distance of 1 meter. How much would the force change if one charge was 4x larger?

Answers

Answer:

the force would increase 4 times more

Explanation

more force results more mass or acceleration

Answer:

it would grow by 4x

Explanation:

I WILL MARK YOU THE BRAINLIEST NO LINKS
The weight of the fluid that an object displaces is equal to the buoyant force acting on the object is
spring force
Archimedes Principle
buoyant force
Hooke's Law

Answers

Answer:

Archimedes' Principle

Explanation:

Its because Archimedes' Principle states "that the buoyant force on an object is equal to the weight of the fluid displaced by the object.... If you want to know the buoyant force on an object, you only need to determine the weight of the fluid displaced by the object."

I'm contrast to Venus the coldest temperature yet measured on the surface of any body in the solar system is -235C

Answers

Answer:

Explanation:

I don't get what the relation here is. Venus is the hottest planet in our solar system. And yes, it's hotter than mercury despite mercury being closer to the sun. And your question talks about the coldest temperature measured which is -235 degrees Celsius. That surely isn't measured on Venus. I'm only wondering what Venus has got to go with cold and what exactly your question is

A disadvantage of a _____
telescope is that you need very large lenses.

A. refracting
B. reflecting

Answers

ANSWER = A. refracting

which drawing below represents the electric field surrounding two objects that have equal magnitude changes of opposite polarity? ​

Answers

Answer:

the 3rd one

Explanation:

j cause I think so

Two like charges are either both ______ or both _______

Answers

Answer:

negative or posotive i think

Explanation:

A +6.33 uC charge q1 is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. What is the value of q2?

Answers

Answer:-4.1858

Explanation: I hate Acellus

If A +6.33 μC charge q₁ is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. then the value of q₂ = 4.23 μC.

What is coulomb's law ?

Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law. The force of attraction between two charges are given by coulomb's law.

the law states that the force of attraction or repulsion between two point charges is directly proportional to product of magnitude of both the charge and inversely proportional to square of the distance between them.

i.e. F ∝ q₁q₂

F ∝ 1/r²

F ∝ q₁q₂/r²

F = kq₁q₂/r²

where k is proportionality constant k = 1/4π∈₀ = 8.9×10⁹

In this problem,

Given,

q₁ = 6.33×10⁻⁶ C

F = 0.115N

r = 1.44m

q₂ = ?

putting this values in the equation,

0.115 = 8.9×10⁹×6.33×10⁻⁶ ×q₂÷1.44²

q₂ = 4.23 μC.

To know more about charge :

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THIS IS MY EXAM HURRY PLS
Which is a way that the elements are grouped on the periodic table? (2 points) a Elements in the same row have the same number of protons. b Elements with similar bonding properties are in the same column. c Elements in the same column have the same number of neutrons. d Elements with similar mass are placed in the same column.

Answers

Answer:

elements in the same column have the same number of neutrons. elements with similar mass are placed in the same column.

A certain circuit is composed of two series resistors. The total resistance is 10kΩ. One of the resistors is 2 kΩ. The other resistor value is

Answers

Answer:

8kΩ.

Explanation:

10kΩ. - 2kΩ. = 8kΩ.

I feel dvmb for asking this question but... help? Please?

Answers

Force, it can speed up or slow down an object which can change the direction in which an object is moving.

which types of change observe the law of conservation of mass? single answer
A. only changes of state
B. only physical changes
C. only chemical changes
D. physical changes and chemical changes

Answers

Answer:

d

Explanation:

d just because it is and it's talking about mass and physical match's up with mass

A transformer has 100 turns on primary coil and 300 turn on secondary coil. If 20V Ac is applied to the primary coil, what would be the secondary voltage?

Answers

Answer:

the secondary voltage is 60 V.

Explanation:

Given;

number of turns on the primary coil, Np = 100 turns

number of turns on the secondary coil, Ns = 300 turns

voltage supply in the primary coil, Vp = 20 V

let the secondary voltage = Vs

Apply the following transformer equation to determine the secondary voltage;

[tex]\frac{V_s}{V_p} =\frac{N_s}{N_p} \\\\V_s = \frac{V_p \times N_s}{N_p}\\\\V_s = \frac{20 \times 300}{100} \\\\V_s = 60 \ V[/tex]

Therefore, the secondary voltage is 60 V.

What is one way to store a lot of potential energy in the field between two charged objects?

Answers

Answer:

Explanation:

Two charged particles will vary in energy as we alter the distance between them.

2. A loop of wire of area 0.7 m is moving into a 0.9 T magnetic field. If it takes 5
seconds for the loop to move from completely outside the field to completely inside the
field, what emf is produced?

Answers

Answer:

fem = -0.126 V

Explanation:

Faraday's law is

          fem =  [tex]- \frac{d \phi}{dt}[/tex]

where the flow is

          Ф = B . A = B A cos θ

bold letters indicate vectors.

In this case, the normal to the area is parallel to the magnetic field, so the angle is zero and the cos0 = 1

           fem = [tex]- A \ \frac{dB}{dt}[/tex]

in this case they indicate that to carry the loop from outside to inside the field in Δt = 5 s, so we can change them by variations

           fem = [tex]- A \frac{\Delta B}{\Delta t}[/tex]

let's calculate

           fem = - 0.7 (0.9 -0) / 5

           fem = -0.126 V

Why is the loss of mass of the object only an apparent loss?

Answers

Answer:

archimides princile

Explanation:

Archimede's principle states that when a body is immersed partly or wholly in a liquid, there is an apparent loss in the weight of the body which is equal to the weight of the liquid displaced by the body.

Answer:

archimides

Explanation:

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