An example of a single displacement reaction is

Explanation:

Given

Force (F) = 7 N

Displacement (d) = 8 m

work done (W) = ?

We know that

W = F * d

= 7 * 8

= 56 J

The work done in this case is 56 Joule.

Answer:

frequency

Explanation:

Answer:

compressions and rarefactions

Explanation:

edge 2022

Answer:

When a magnet is moving relative to a conductor in close proximity, a current is induced within the conductor. This induced current will cause an opposing magnetic field. This opposing magnetic field can be used to levitate a magnet.

Explanation:

Answer:

Please find the attached pdf

Explanation:

Answer:

It’s 12 m/s

Explanation:

Khan approved

A horizontal net force F is exerted on a 2.0 kg object at rest. The object starts at x = 0 m and travels 4.0 m along a horizontal frictionless surface. The net force F as a function of the object's position x is shown below.

What is the velocity of the object?

Answer: 12 m/s

Third model shows how a comet's tail changes during its orbit...

mark brainliest

Answer:

when you walk your foot pushes down on the ground, while the ground pushes back on your foot

Explanation:

it was another brainly question, Goodluck :)

Answer:

vasporisation

Explanation:

process used to change liquid to gass

Answer:

I believe it's Evaportation or another word would be Vaporisation.

Explanation:

hope this helps! ^^

Answer:

B. I DID IT AND GOT IT RIGHT

Explanation:

Answer:

It is B

Explanation:

i did this one

Answer:

insect B by 12m

Explanation:

30min = 1800s (times by 60)

5m/min x 30min = 150m

9cm/s x 1800s = 16,200cm = 162m

162m - 150m = 12m

Answer:

A. The magnets used to lift metal or cars in a salvage/junk yard

Explanation:

An electromagnet  is defined as a type of magnet which are made up of wires in coil shape. Magnetic field in these wires are produced by electric current.

An example of an electromagnet is magnets used to lift metal or cars in a salvage/junk yard because a crane is used in junkyard to lift metal in which crane is attached to a iron disc and when electricity is off, the disc move downwards and placed near required metal and switch on the electricity when disc reaches on metal or cars to be lifted. This electricity generates magnetism in the iron disc and attract metal or cars from the junkyard.

Hence, the correct answer is "A. The magnets used to lift metal or cars in a salvage/junk yard".

Answer:

0.05m

Explanation:

Given parameters:

Force constant of the spring  = 40000N/m

Potential energy  = 42J

Unknown:

Extension  = ?

Solution:

To solve this problem, use the expression below:

           E.PE  = [tex]\frac{1}{2}[/tex] k e²  

k is spring constant

e is the extension

              42  =  [tex]\frac{1}{2}[/tex]  x 40000 x e²  

               e  = 0.05m

Explanation:

Given

Mass(M) = 80,000 kg

Acceleration (a) = 35 m/s²

Force (F) = ?

We know we have the formula

F = m * a

= 80000 * 35

= 2800000

= 2.8 * 10 ^ 6 N

The force is 2.8 * 10 ^ 6 N.

Hope it will help :)❤

If a rocket has a mass of 80,000 kg and accelerates at a rate of 35 m/s2.  then the force that provides this acceleration would be 2800000 Newtons.

Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.

The mathematical expression for Newton's second law is as follows,

F = m*a

As given in the problem we have to find the force that provides the acceleration of 35 meters / second², if the  rocket has a mass of 80,000 kg,

The force acting on the rocket =  80,000 × 35

                                                   = 2800000 Newtons

Thus, the force acting on the rocket would be 2800000 Newtons.

To learn more about Newton's second law here, refer to the link;

brainly.com/question/13447525

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Answer:

Weight (Force) = mass x acceleration due to gravity Weight = 90.0 kg x 9.80 m/s2 Weight = 882 N or 882 kg m/s2 Page 2 Newton's Notes 2 Gravity has an effect on an object in the vertical direction only.

Answer:

882.9N

Explanation:

1kg is 9.81n

Answer:

D. DNA

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

Heredity refers to the transfer of traits (specific characteristics) from the parent of a living organism to her offspring through sexual reproduction or asexual production. Some examples of hereditary traits are dimples, tongue rolling, baldness, handedness, freckles, curly hair, color blindness, height, etc.

Deoxyribonucleic acid (DNA) is a strand of evidence which helped to provide a link in the evolution of whales from land mammals on 4 legs to a sea mammal with fins.

Basically, deoxyribonucleic acid (DNA) is an organic complex-molecular structure found in all living organisms. It comprises of genes and is essentially the foundation block of all living organisms such as humans, animals and plants.

Answer:

i d k ok

Explanation:

Answer:

a.ionic bond is kinds of bonds make up a formula unit of sodium chloride.

Answer:

A

Explanation:

Answer:

it's C

Explanation:

have a nice day............

Answer:

The gravitational potential energy decreases and the kinetic energy increases. The gravitational potential energy is transformed into kinetic energy as the ball rolls down the ramp.

Explanation:

The gravitational potential energy is the energy due to the position of a body above the ground.

Kinetic energy is the energy due to the motion of a body.

From the law of conservation of energy "energy is neither created nor destroyed but transformed from one form to another".

As the ball rolls down the ramp, the potential energy at the height is converted to kinetic energy.

Answer:

30 cm

Explanation:

0.06 or  [tex]\frac{1}{15}[/tex]

The lever has two “arms”:

The load arm is the portion of the lever directly connected to the load.

The effort arm is the portion of the lever to which we apply the effort, or input force.

The formula of the mechanical advantage(MA) of a lever is given as

MA = load/effort.

Given,

load = 2kg , effort = 30cm

MA = [tex]\frac{2}{30}[/tex] = [tex]\frac{1}{15}[/tex]

MA  = 0.06 cm

Therefore,

A 2-kg mass placed 30-cm to the left of the fulcrum is balanced by a 2-kg mass placed  0.06 cm to the right of the fulcrum.

Learn more about Fulcrum here:https://brainly.com/qu estion/16422662

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Answer:

you have to match the letters in the picture to the list of energy types

Answer:

Explanation:

100 mph = 100 x 1760 x 3 / ( 60 x 60 )

= 146.67 ft / s

70 mph = 70 x 1760 x 3 / ( 60 x 60 )

= 102.67 ft/s

Let mass of the ball = m .

The ball which was moving with a velocity of 146.67 ft/s is turned back by the action of force of bat on the ball and it moved in opposite direction with velocity of - 102.67 ft/s ( - ve sign due to reversed direction )

If m be the mass of ball

change in momentum = m x 146.67 - ( - m x 102.67 )

=  m x 146.67 +  m x 102.67

= 249.34 m

Change in momentum = impulse = force x time

Putting the given values

249.34 m = force x 1 x 10⁻³ ( time = 10⁻³ s )

force = 249.34 m x 10³ poundal .

Here m is mass of the ball in lb .

Answer:

12 joules

Explanation:

I'm assuming you're looking for kinetic energy?? Kinetic energy is 1/2 mv^2. 4 squared is 16, 16 times 1.5 = 24. 24/2 = 12.

Answer:

I dont really know but i think its water type of energy

Explanation:

Hope it helps

Answer:

660

Explanation:

0.011kW = 11W

energy = 11 x 60

            = 660J

Answer:

[tex]\mu =0.169704 Ns/m^2[/tex]

Explanation:

From the question we are told that

Area of plate[tex]a=1m^2[/tex]

Angle of inclination [tex]\theta=60 \textdegree[/tex]

Velocity [tex]v=0.75m/s[/tex]

Thickness of oil [tex]t=2mm[/tex]

Weight of plate [tex]w=90N[/tex]

Generally the equation for shear force is mathematically given by

[tex]F=mgsin45 \textdegree[/tex]

[tex]F=90sin45 \textdegree[/tex]

[tex]F=63.639N[/tex]

[tex]F=\mu* \frac{v}{t}[/tex]

[tex]F=\mu* \frac{0.75}{2*10^-^3}[/tex]

[tex]\mu* \frac{0.75}{2*10^-^3}=63.639N[/tex]

[tex]\mu =\frac{63.639}{375}[/tex]

Therefore viscosity is given by

[tex]\mu =0.169704 Ns/m^2[/tex]

2800 m

Given

time = 80 s

average velocity = 35 m/s

Required

total distance before it broke down

Solution

Average velocity : total displacement : total time

Can be formulated

avg velocity = Δx : Δt

Input the value :

Δx=avg velocity x Δt

Δx = 35 m/s x 80 s

Δx = 2800 m

In addition, if we are asking for velocity, we must know the starting and ending points (displacement)

But if we calculate the total distance, what is written is the average speed

avg speed = total distance : total time

Answer:

68.6N

Explanation:

Given parameters:

Mass of object  = 7kg

Unknown:

Weight  = ?

Solution:

The weight is the downward force of gravity on a body;

              Weight  = mass x acceleration due to gravity

             Weight  = 7 x 9.8 = 68.6N

Answer:

this is confusing

Explanation: