How much force, in N, must be applied to a 18-kg object in order to accelerate it at 5 m/s2?

Answer:

3.33A

Explanation:

total resistors in series circuit (4.0+2.0) = 6.0

following ohms law. V = IR, then I = V/R; but the supply voltage given equals =20,

therefore, 20/6 = 3.33A,

Answer: the dependent variable  

a variable (often denoted by y ) whose value depends on that of another.  

hope it helps :]

Answer:

On Earth,

g

=

9.8

m/s

2

. So, the object's weight on Earth will be:

W

=

50

kg

⋅

9.8

m/s

2

=

490

N

Explanation:

Answer:

number of protons = 3

number of neutrons = 4

Explanation:

so now we know that the number of protons are 3 ( electron number is also three )

so in the middle draw four neutrons and three protons then draw two shells with two in the first shell and one in the outermost shell

I sent it to your messenger

Answer:

Gravitational potential energy

Explanation:

PE = m*g*h

m = mass

g = 9.81m/s², acceleration of gravity

h = height

So m and g stay the same but the height can change so the higher you go the higher the Gravitational potential energy.

Placing a soccer ball on the top shelf increases the Gravitational potential energy

In a gravitational field the energy possessed by an object due to a change in its position called as gravitational potential energy, it is an energy that is related to gravitational force or to gravity.

When a mass of the body  (m) is moved from infinity to a point inside the gravitational influence of a source mass (M) in absence of acceleration and the amount of work done in displacing it into the source field is stored in the form of potential energy denoted with the symbol Ug.

when external force is applied, then the  position of the body changes potential energy is equal to the amount of work done on the body by the forces.

The gravitational influence on a body at infinity is zero, then the  potential energy is zero, PE = m*g*h where m = mass, g = 9.81m/s², acceleration of gravity, h = height

For more details regarding Gravitational potential energy, visit

https://brainly.com/question/19768887

#SPJ2

Answer:

1. directly

2. inversely

Explanation:

The relationship between the energy of a photon and its frequency is dictated by another simple equation:

E = hv = hc/λ

where E is the energy in kiloJoules per mole, h is Planck's constant with a value of 6.626 x 10-34 Joule-seconds per particle, λ is the wavelength of light λ in meters,  and c is the speed of light with a constant value of 300 million meters per second. From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Thus as frequency increases (with a corresponding decrease in wavelength), the photon energy increases and vice versa.

Energy of a photon is directly proportional to frequency, and inversely proportional to wavelength.

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form

The relationship between the energy of a photon and its frequency is

E = hv = hc/λ

where E is the energy in kiloJoules per mole,

h is Planck's constant with a value of 6.626 x 10-34 Joule-seconds per particle,

λ is the wavelength of light λ in meters,  

c is the speed of light with a constant value of 300 million meters per second.

From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength.

To learn more about energy refer to the link:

brainly.com/question/1932868

  #SPJ2

Answer:

a

Explanation:

the color reflected is the color you see

I'm pretty sure it can only full

Answer:

the phase is a full moon

Explanation:

A lunar eclipse can only happen when the sun, Earth and moon are perfectly line up.

Answer:

gas vibrates and moves freely at high speeds.

Explanation:

Hope this helps

Answer:

a rock slide sometimes a mud slide if waters involved

Answer: Force (F=m*a)

Explanation:

Answer:

Newton's 2nd law of motion is the formula for force.

Explanation:

The formula is f = m × a

Force = mass × acceleration

Answer:

Associations Clusters

Explanation:

There is three basic type of clusters, globular clusters, open clusters, associations clusters. Associations cluster consist of younger stars that is younger than globular and open clusters stars.

To discover the youngest stars you could find in some grouping of stars in the Galaxy, type of star group would be the best to search is Associations Clusters.

A galaxy is a massive cluster of gas, dust, billions of stars, and their solar systems that are all bound together by gravity. Earth is a planet in our solar system where we call home.

A galaxy cluster, also known as a cluster of galaxies, is a formation made up of hundreds to thousands of galaxies that are gravitationally coupled to one another.

There is three basic type of clusters, globular clusters, open clusters, associations clusters. Associations cluster consist of younger stars that is younger than globular and open clusters stars.

To discover the youngest stars in the galaxy the best group is Associations cluster.  

To learn more about Galaxy refer to the link:

brainly.com/question/2905713

  #SPJ2

Answer:

You are absolutely correct

(a) The angular speed of Allen is 0.628 rad/s.

(b) The angular speed of Beth is 0.628 rad/s.

(c) The linear speed of Allen is 2.512 m/s.

(d) The linear speed of Beth is 1.256 m/s.

The given parameters;

The angular speed of Allen is calculated as follows;

[tex]\omega = \frac{1 \ rev}{10 \ s} \times \frac{2\pi \ rad}{1 \ rev} \\\\\omega = 0.628 \ rad/s[/tex]

The angular speed of Beth is calculated as follows;

[tex]\omega = \frac{1 \ rev}{10 \ s} \times \frac{2\pi \ rad}{1 \ rev} \\\\\omega = 0.628 \ rad/s[/tex]

Allen and Beth make the same number of revolutions every 10 seconds, hence their angular speed is the same.

The linear speed of Allen is calculated as follows;

[tex]v = \omega r\\\\v = 0.628 \ rad/s \times 4 \ m\\\\v = 2.512 \ m/s[/tex]

The linear speed of Beth is calculated as follows;

[tex]v = \omega r\\\\v = 0.628 \ rad/s \times 2 \ m\\\\v = 1.256 \ m/s[/tex]

Learn more here:https://brainly.com/question/14454004

Answer:

b) the alkali metals

plus information:

F has the highest electronegarivity

Fr has the lowest electronegarivity

The friction force acting on the table is equal to 366 Newton.

Given the following data:

To calculate the friction force acting on the table:

The force of friction acting on the table is given by this mathematical expression:

[tex]Force - Force \;of\; friction = Net \;force[/tex]

Substituting the given parameters into the formula, we have;

[tex]420 - F = 1.8 \times 30\\\\420 - F = 54\\\\F = 420-54[/tex]

Force of friction, F = 366 Newton

Complete Question:

Brenda wants to move a 30.0 kg table, She applies a force of 420 N. Under these conditions, the table initially moves with an acceleration of 1.80 [tex]m/s^2[/tex]. Calculate the friction force on the table

Read more on force of friction here: https://brainly.com/question/13754413

Explanation:

unbalanced: a turning vehicle, apple falling on the ground, kicking a ball

balanced: floating on water, fruit hanging from tree, tug of war equally balanced teams

Answer:

Explanation:

M(a+g)

The force acting on the top box by the bottom box both having a mass of m stacked in an elevator moving upward with an acceleration of a is,

m(a +g).

Force is an external factor acting on a body to change it from the state of motion or rest. There are different types of forces such as gravitational force, nuclear force, tension force etc.

Newton's second law states that the force acting on a moving body is the product of its mass and acceleration. If the body of mass m is moving upward with an acceleration a, the force F will be equal to ma.

If the body moves downwards, then the net acceleration is the gravity g that is 9.8 m/s².

Here, both the boxes are moving upward and experience an acceleration a. The force exerted by the box at the bottom is with the acceleration g.

Thus ,the net force experienced by the box at the top by the box at the bottom is equal to F= m (a + g) .

To find more about forces, refer the link below:

https://brainly.com/question/14110395

#SPJ2

Answer:

The time is identical, since both pulses travel at the speed of light.

Explanation:

Answer:

C. Probably not since that system deals mostly with mobility.

Explanation:

Answer: I believe it’s physical therapist

Explanation:

Good career for a someone interested in exercise physiology is physical therapist.

Physical therapists assist persons who are ill or injured with better movement and pain management. They frequently play a significant role in the prevention, rehabilitation, and treatment of individuals with long-term illnesses, injuries, or disorders.

Physical therapists evaluate each patient before creating a therapy plan to enhance their mobility, lessen or manage pain, and regain function.

The physiology of physical exercise is known as exercise physiology. It is one of the allied health fields that incorporates research on both acute and long-term adaptations to exercise.To identify the greatest feasible exercise and fitness routine, exercise physiologists examine a patient's medical history.

Good career for a someone interested in exercise physiology is physical therapist.

To learn more about physical therapy refer to the link:

brainly.com/question/18445233

#SPJ2

Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

Answer:

The horizontal velocity of a projectile is constant, There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.

Explanation:

The thermal energy created when the crate slides at the given distance is 6,192.8 J.

The given parameters;

The thermal energy created is the energy lost due to friction and it is calculated as follows;

[tex]W = \mu F_n d[/tex]

where;

[tex]\mu[/tex] is the coefficient of friction

The coefficient of friction is calculated as;

[tex]\mu = tan(\theta)\\\\\mu = tan(35)\\\\\mu = 0.7[/tex]

The work done against friction is calculated as;

[tex]W = \mu F_n d\\\\W = \mu (Wcos\theta ) d\\\\W = 0.7 \times 900 \times cos(35) \times 12\\\\W = 6,192.8 \ J[/tex]

Thus, the thermal energy created when the crate slides at the given distance is 6,192.8 J.

Learn more here:https://brainly.com/question/14960198

Answer:

carbohydrates

Explanation:

The centripetal acceleration  of the car is equal to [tex]22.5 \;m/s^2[/tex].

Given the following data:

To determine the centripetal acceleration  of the car:

Mathematically, the centripetal acceleration of an object is given by the formula:

[tex]A_c = \frac{V^2}{r}[/tex]

Where:

Substituting the given parameters into the formula, we have;

[tex]A_c = \frac{15^2}{10}\\\\A_c = \frac{225}{10}\\\\A_c = 22.5 \;m/s^2[/tex]

Read more: https://brainly.com/question/6082363