How do I solve this problems

How Do I Solve This Problems

Answers

Answer 1
My best advice would be to just keep on practicing and work with whatever notes you have :)

Related Questions

verdadero o falso de La energía interna es la energía térmica asociada al objeto en virtud del movimiento de sus moléculas.

Necesito ayuda, porfa.

Answers

Answer:

Es la energía cinética interna total de un objeto debido al movimiento aleatorio de sus ... a es la energía que posee un objeto o cuerpo en virtud del movimiento de sus ... Si el movimiento de estas moléculas y átomos es más rápido, se dice que el ... Por lo tanto, la energía térmica asociada con la conducción resulta de la .

Explanation:

A ball experiences forces of 14 N [N] and 9.2 N [W]. A Free Body diagram is required. What is the acceleration of the ball if its mass is 225 g?

Answers

Answer:

First, we can define the North as the positive y-axis, and the East as the positive x-axis.

Here we have two forces:

F₁ = 14N to north

F₂ = 9.2 N to west.

Then the free body diagram will be the one that can be seen below:

Now we want to find the acceleration that the ball experiences if the mass is 225g

Knowing that 1k = 1000g, we can rewrite the mass as:

M = 0.225g

Here we also need to remember the second Newton's law:

F = M*a

Net force equals mass times acceleration.

First, let's find the net force:

F = F₁ + F₂ = 14N*(0, 1) + 9.2N*(-1, 0 )

F = (-9.2N, 14N)

The module of the force is then:

I F I = √( (-9.2N)^2 + (14N)^2) = 16.75 N

Then the acceleration is given by

16.75 N = 0.225kg*a

(16.75 N)/(0.225 kg) = a = 74 m/s^2

Which is a benefit of a scientific model?
A.) It provides a complete image of the concept it is modeling.
B.) It provides an accurate scale of the concept it is modeling.
C.) It provides an accurate visual representation of the texture and coloring of the concept it is modeling.
D.) It provides a useful understanding of the concept it is modeling.

Answers

D.) it provides a useful understanding of the concept it is modeling.

What is the net force in the following diagram?​

Answers

I don’t see a diagram

The Hubble Space Telescope has a mass of 1.16*10^ 4 kg and orbits the Earth at an altitude of 5.68 * 10 ^ 5 above Earth's surface. Relative to infinitydetermine the potential energy the telescope at this location. Would the formula be Ep=-Gm1m2/r or positive G since it’s relative to infinity

Answers

Answer:

[tex]E=8.13\times 10^{12}\ J[/tex]

Explanation:

Given that,

The mass of a Hubble Space Telescope, [tex]m_1=1.16\times 10^4\ kg[/tex]

It orbits the Earth at an altitude of [tex]5.68\times 10^5\ m[/tex]

We need to find the potential energy the telescope at this location. The formula for potential energy is given by :

[tex]E=\dfrac{Gm_1m_e}{r}[/tex]

Where

[tex]m_e[/tex] is the mass of Earth

Put all the values,

[tex]E=\dfrac{6.67\times 10^{-11}\times 1.16\times 10^4\times 5.97\times 10^{24}}{5.68\times 10^5}\\\\E=8.13\times 10^{12}\ J[/tex]

So, the potential energy of the telescope is [tex]8.13\times 10^{12}\ J[/tex].

a 20 A fuse is connected in series with a circuit containing a 240 V source. What is the minimum resistance required to prevent the fuse from melting

Answers

Answer:

12 ohms

Explanation:

you just divide 240 and 20

240 V/ 20 A = 12 ohms

Which statement is correct about the equation for work?

O work = force x distance
work = fulcrum x distance
O work = force x direction

Answers

Answer:

work equal to Force times distance

Consider three point charges, q1 = 4.50 C, q2 = 4.50 C, and q3 = 6.30 C, located at the corners of an isosceles triangle. The charges q1 and q2 are 5.00 m apart and form the base. The triangle is 3.50 m high, and q3 is located at the top. Calculate the magnitude and direction of the resultant force on q3.

Answers

Answer:

See explanation below

Explanation:

In this case, let's draw the triangle so we can see how the resultant force would be.

In the picture below, you have the drawn, and the procedure to solve this.

Hope this helps

the shock absorbers in a car act as a big spring with k= 21900 N/m. when a 92.5 kg person gets in, how far does the spring stretch?

Answers

Answer: 0.04139m

Explanation:

First, we need to calculate the weight of the man which will be:

Weight = mass × acceleration due to gravity

Weight = mg

Weight = 92.5 × 9.8

Weight = 906.5N

Then, we calculate the force which will be:

F = kx

mg = kx

x = mg/k

x = 906.5/21900

x = 0.04139m.

The spring stretched for 0.04139m.

A set of charged plates have an
area of 8.22*10^-4 m^2 and
separation 2.42*10^-5 m. The
plates are charged with
5.24*10^-8 C. What is the
potential difference V between
the plates?
(Unit = V)

pls hurry <3

Answers

Answer:

175

Explanation:

its for Acellus

The potential difference is V=1.743*10^-7

The voltage is generally referred to as the electric potential difference and  it can be measured using a voltmeter. The electrical potential difference between the two plates is expressed as q=CV.

CALCULATION

we know,

q=CV

q={EA/d}*V

here q= 5.24*10^-8C

       A=8.22*10^-5m^2

       d=2.42*10^-8m

therefore , C={( 8.85*10^-12)*(8.22*10^-5)}/(2.42*10^-8)

                 C=3.006*10^-1

q=CV

q/C=V

V=1.743*10^-7

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Explain what cardiovascular exercise is in your own words. Explain the benefits of it and how it is different than muscular strength. Give 3 examples of cardiovascular exercises/activities

Answers

Cardiovascular exercise is a form of exercise that can build up your respiratory fitness and improve you endurance. It is different from muscular strength because it is more about endurance then repetition which is need for muscular strength. 3 example of cardiovascular fitness are running, swimming, and biking. Hope this helps

Which one of the following properties apply to both waves and particles?

A) Photoelectric Effect
B) Diffraction
C) Refraction

Answers

Answer:

b

Explanation:

sorry if im wrong

What type of liquid would never freeze

Answers

Answer:

gas

Explanation:

gasoline will never freeze up

Answer:

Alcohol

Explanation: I'm not sure

If the distance between the magnets tripled what would happen to the force between the 2 magnets?

Answers

Answer:

Our Repelling Force Magnet Calculator shows the repelling force on a magnet that happens when another magnet of the same size is placed at some distance from it, with like poles facing one another. The force depends on the distance between the magnets. The farther apart the magnets are, the weaker the force.

Explanation:

Friction always acts
in the same direction as motion.
in the opposite direction as motion.
at a 30 degree angle to the direction of motion.
perpendicular to the direction of motion.

Answers

Explanation:

friction always acts in the opposite direction as motion.

stay safe healthy and happy...

How do the properties of the planets change as you move away from the sun?

Answers

Answer:

as we move away from the sun the velocity of the planet decreases

Question 8
Swimming in an open body of water (like a river, lake, or ocean) is different from swimming in a

Answers

Answer:

pool

Explanation:

I think

Answer: Pool

Hope this helps

A hair dryer uses 1100 W of power
when connected to a 110 V outlet.
What is the resistance of the hair
dryer?

Answers

Answer:10

Explanation:acellus

what's the main function for the human digested system​

Answers

Answer:

The function of the digestive system is digestion and absorption. Digestion is the breakdown of food into small molecules, which are then absorbed into the body.

Explanation:I  hope it helped

In a certain circuit the number of electrons passing a given point in 3 seconds is 6 x 1014 electrons. What is the current flow in this circuit? (Show all work, including substitution with units)

Answers

Answer:

Current = 0.000032 Amperes

Explanation:

Given the following data;

Time, t = 3 seconds

Number of electrons = 6 * 10^14 electrons

Conversion:

First of all, we would convert the number of electrons to charge.

Coulombs = electron charge ÷ 6.2415 * 10^18

Coulombs = (6 * 10^14) ÷ (6.2415 * 10^18)

Coulombs = 0.000096 Coulombs

To find the current;

Mathematically, quantity of charge is given by the formula;

Quantity of charge, Q = current * time

Substituting into the formula, we have;

0.000096 = current * 3

[tex] Current = \frac {0.000096}{3} [/tex]

Current = 0.000032 Amperes

What is the average kinetic energy (temperature) of
sample A

Answers

I think the answer is A

HELP PLS
In the context of climate change, is “positive feedback” a good thing?

Answers

Climate feedbacks: processes that can either amplify or diminish the effects of climate forcings. A feedback that increases an initial warming is called a "positive feedback." A feedback that reduces an initial warming is a "negative feedback." So I guess it is ?

The graph represents the reaction 3H2 + N2 2NH3 as it reaches equilibrium. Based on the graph, which two statements about this reaction are true?
PLEASE NO LINKS OR DOWNLOADS ​

Answers

Answer:A and C

Explanation: I took the test lol

Two statement that are correct based on graph are A, At point 4, the concentration of NH₄, NH₂ and H₂ remain constant, and C, Equilibrium is reached after point 3.

What are graphs?

Graphs are the mathematical representation of the data that is easy to understand.

The reaction is [tex]\rm 3H_2 + N_2= 2NH_3[/tex]

The graph shows time on x-axis and concentration on y-axis.

Thus, the correct options are A and C.

Learn more about graphs

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20 points plz help i dont really understand how to do this
my grades at d rn plz help lol tysm if you do < 3
. Calculate the equivalent resistance of the circuit.


c. Calculate the current through the battery.


d. How much current is passing through each resistor

Answers

[tex]\huge{ \mathfrak{  \underline{ Answer} \:  \:  ✓ }}[/tex]

1. Calculate the equivalent resistance in the circuit :

In the given diagram, the resistors are in series connection,

So equivalent resistance = sum of resistance of both resistors.

[tex] \large \boxed{R_{eq} =R_1 +R_2 }[/tex]

[tex]R_{eq} = 480 + 360[/tex]

[tex]R_{eq} = 840 \: ohms[/tex]

Therefore, Equivalent resistance = 840 ohms.

2. Calculate the current through the battery :

[tex] \boxed{ \mathrm{current = \dfrac{potential \: \: difference}{resistance} }}[/tex]

[tex]i = \dfrac{120}{840} [/tex]

[tex]i = \dfrac{1}{7} [/tex]

[tex]i = 0.142 \: Amperes[/tex]

Hence, current through the battery = 0.142 A

3. How much current is passing through each resistor :

Since the resistors are joined in series connection, the current flowing through each resistor will be equal = 0.142 Amperes.

___________________________

[tex]\mathrm{ \#TeeNForeveR}[/tex]

two charges create 8.00 N of electric force on each other. if you increase their distance to twice its original value, how much electric force do they exert on each other

Answers

Answer:

2.00 (right on acellus)

Explanation:

doubling the distance between two charges makes F (8.00) quarter, so you would just do 8.00*1/4

What is one problem that you think needs to be solved so that your future is safer for your children?

Answers

Answer:

Systemic racism

Explanation:

9. How is spring potential energy determined from a force versus position graph?

Answers

Answer: The potential energy associated with a mass attached to a spring depends on how much the spring is stretched or compressed. ... The gravitational force on the mass is −mg (“−” because the force points down). The force is the negative of the slope on the potential energy versus position graph.

Explanation:

:)

By getting the data from the graph of force versus displacement we can calculate the Potential energy of the spring.

What will be the potential energy?

As we know that potential energy is defined as the energy possessed by the body due to its position with respect to other positions.

For an example the potential energy of an object if it is placed at height h will be due to the gravitational acceleration of the earth and is given by  [tex]PE=mgh[/tex]

Similarly, for a spring-mass system, the potential energy will be due to the weight of the mass that will be the force exerted by the mass on the spring so there will be an extension in the spring.

So this extension will be found out by the force and displacement  graph as the position of the mass attached to the spring goes down so the potential energy can be calculated as the

[tex]PE= F\times X[/tex]

[tex]F=mg[/tex]  weight of the mass

X= deflection of the spring

Thus by getting the data from the graph of force versus displacement we can calculate the Potential energy of the spring.

To know more about potential energy follow

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I NEED THIS DONE ASAP I WILL MARK YOU THE BRAINLIEST BUT NO LINKS
Put the correct terms with the correct pictures

Answers

Answer:

1. Static Friction

2. Sliding friction

3. Fluid friction

4. is rolling friction

Sorry if i am wrong

Explanation:

Based on the information in the graph, why is energy released during the fusion of hydrogen (H) into helium (He)?
A. The hydrogen-1 nuclei (H - 1) are more stable than the helium-4 (He - 4) nucleus is, because they have less binding energy per nucleon than the helium has.
B. There are fewer nucleons in a helium-4 (He-4) nucleus than there are in four hydrogen-1 (H - 1) nuclei, so there is more energy released per nucleon when helium forms.
C. The hydrogen (H) nuclei are lower in energy than the helium (He) nucleus is, so more energy is stored in a helium nucleus.
D. The helium (He) nucleus is more stable than the hydrogen (H) nuclei are, because more mass is converted into binding energy in helium.

Answers

Answer:

D

Explanation:

Just had the same question and couldnt find and answer so i guessed. heres the answer no lol!

Answer: D.The helium (He) nucleus is more stable than the hydrogen (H) nuclei are, because more mass is converted into binding energy in helium.

Explanation:

apex physics

A ball is released from a height of 20 metres. Calculate; 1. The time it takes to fall 2. The velocity with which it hits the ground

Answers

Answer:

Final velocity of ball = 20 m/s

Explanation:

Given:

Height when ball released = 20meter

Find;

Time taken to fall

Final velocity of ball

Computation:

Initial velocity of ball = 0 m/s

Acceleration due to gravity = 10 m/s²

Using equation of motion;

S = ut + (1/2)(g)(t²)

20 = (0)(t) + (1/2)(10)(t²)

20 = 5(t²)

(t²) = 20 / 5

(t²) = 4

Time taken to fall = 2 second

V = u + at

V = 0 + (10)(2)

Final velocity of ball = 20 m/s

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