Since the river also flows South at 6.0m/s, how does dividing 120m and 8.0m/s make sense?

The correct answer is 183300 Newton amount of force is needed to propel a rocket.

What connection exists between force and mass of acceleration?

Mass times acceleration, or F=m x a, equals force. This means that in order to move an object at the same speed as an object with smaller mass, a stronger force is required. Newton's Second Law of Motion is this.

Force = Mass x acceleration

Initial velocity = 11 Km/s

Acceleration = Velocity / time = 11000 / 600 = 110/ 6 = 18.33 m/s^2

Force = 10000 x 18.33 = 183300 N

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Change in momentum is 2.16 kg m/s

What is Change in momentum ?

The change in momentum is equal to the product of the change in mass and velocity. The mass is constant and does not change. It is the change in velocity that causes the change in momentum. The change in momentum is denoted by the symbol Δp.

The change in momentum (Δp) is defined as the change in the mass times the velocity of an object. A force is required to change the momentum of an object. This applied force can increase or decrease momentum or even change the orientation of an object

Δp =m * [ v ( final ) - v( initial ) ] =  60/1000 [ 16 - ( - 20) ]

     = 2.16kg m/s

Change in momentum is 2.16 kg m/s

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707 ohms . (You add up all the resistors there's 5 total 200, 86, 91, 180, and 150. Add all ohms for total resistance of the circuit)

When resistors are connected one after each other this is called connecting in series. This is shown below. To calculate the total overall resistance of a number of resistors connected in this way you add up the individual resistances. This is done using the following formula: Rtotal = R1 + R2 +R3 and so on.

A passive electrical component known as a resistor increases current flow resistance. They can be found in almost all electrical and electronic networks. Resistance is measured in terms of ohms

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The rate of change in the magnetic flux for the induced emf in a loop is 9.42 volts.

Magnetic flux is the number of lines of force that penetrate a plane surface perpendicularly. Meanwhile, the induced emf is the emergence of an emf on the ends of the coil caused by a change in the magnetic flux enclosed by the coil.

                                      ε = (dΦ/dt)

With:

ε = induced emf (volts)

ΔΦ = change in magnetic flux (Wb)

Δt = time interval for changing magnetic flux (s)

On a known matter

The radius of the circular loop: r = 1 m

Time: t = 2 s

Initial magnetic field: Bi = 2T

Final magnetic field: Bf = 8T

The expression for the induced emf in a loop is:

ε = (dΦ/DT)                      → Φ = magnetic flux

ε = [tex]\frac{d(BA cos 0)}{dt}[/tex]                    → θ = 90°

ε = [tex]A\frac{d(B)}{dt}[/tex]

ε = [tex]A \frac{Bf -Bi}{t}[/tex]

ε = π(1)² x (8-2/2)

ε = 22/7 x 3

ε = 9.42 volts

So, the induced emf in the loop is 9.42 volts.

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The average angular speed of the bicyclist that travels around exactly half of the track in 100 s is 0.314 rad / s

ω = 2 π / T

ω = Angular speed

T = Time period

The time taken, t to complete half of the track is 10 s

T = 2 * t

T = 2 * 10

T = 20 s

ω = 2 * 3.14 / 20

ω = 0.314 rad / s

The speed of the object in rotational motion is called as angular speed. Just like the regular speed formula, this is also in terms of distance and time. But the distance is measured as θ whose value is taken in radians.

Therefore, the average angular speed of the bicyclist is 0.314 rad / s

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Force exerted by the astronaut was 625 newtons

what is force?

A force in physics is an effect that has the power to alter an object's motion. A force can cause an object with mass to alter its velocity, or accelerate (for example, moving from a condition of rest). Intuitively, a push or a pull can also be used to describe force. Being a vector quantity, a force has both magnitude and direction.

formula to find the force was

Force= mass x acceleartion.

max acceleration (slope) occurs from 1min to 2 min, I see the slope as

the acceleration was found to be 12.5

Force=50 x 12.5 Newtons

=625 newtons.

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Approximate magnitude of the force of friction on the block as it slides down the incline is calculated as 4N.

Force of friction is the force resisting the relative motion of solid surfaces, fluid layers and material elements sliding against each other. There are many types of friction like  static friction, sliding friction, rolling friction, and fluid friction. Static friction is the strongest which is followed by sliding friction and rolling friction is the weakest. Fluid friction takes place in fluids which are liquids or gases.

Given mass is 2 kg and

acceleration is 4.0 m/s

m *g *sin  37° - F = m*a

F= m *g *sin  37° - m*a

=( 2* 9.81 * sin  37°- 2 *4)

=3.8 N

approximately equal to 4N

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Product of mass and acceleration is the magnitude of force.

A push or pull of an object is called force. Product of mass and acceleration is the magnitude of force. The S.I. unit of force is m/s². Unit can be represented by newton symbol is N.

F = m × a

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Electromagnetic radiation is a form of energy that exhibits wavelike behaviour as it travels through space.

Examples of EMR include ultraviolet light, infrared light, microwaves, and radio waves.

In terms of science, electromagnetic radiation (EMR) is made up of electromagnetic (EM) field waves that travel over space while carrying radiant electromagnetic energy. It consists of X-rays, gamma rays, microwaves, infrared, visible light, ultraviolet, and radio waves. These waves are all a component of the electromagnetic spectrum.

Electromagnetic waves, which are synchronized oscillations of the electric and magnetic fields, are the traditional form of electromagnetic radiation. Due to the periodic alteration of the electric or magnetic field, electromagnetic radiation or waves are produced. Different wavelengths of the electromagnetic spectrum are created depending on the way this periodic change takes place and the power generated. Electromagnetic waves move at the speed of light, typically abbreviated as c, in a vacuum.

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The type of mass wasting that involves earth materials in which the descending mass remains relatively intact and moves along a well-defined surface is a slide.

There are four types of mass wasting. They are:

A slide is a descending mass rock remaining relatively coherent moving along one or more well defined surfaces. A rock slide is a mass of bed rock rapidly sliding along a declined surface like bedding plane or a major fracture.

Therefore, the type of mass wasting that involves earth materials in which the descending mass remains relatively intact and moves along a well-defined surface is a slide.

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Increasing following distance to Four-seconds when encountering other motorists who follow too closely  is an example of appropriate implementation of the IPDE defensive driving strategy for the  maintenance of an appropriate Safety Cushion.

Continuous scanning is essential to manage the nine to fifteen space driving zones while maintaining the necessary safety cushion while using the IPDE defensive driving approach. As a result, drivers need to be able to recognise the objects and hazards in their line of sight and their direction of movement.

They ought to anticipate potential conflict hotspots. They should decide what driving behaviours are suitable and safe to use, when, and where. In order to ensure that confrontations are avoided, action must be taken.

Identify, Predict, Decide, and Execute is the acronym for IPDE. Off-road driving should also employ this tactic. Determine any items or situations that could be problematic for you while driving. Make an educated guess as to what might happen when you come across the thing or condition.

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An egg is dropped from a treehouse and takes 5 seconds to reach the ground. Air resistance can be ignored. The displacement of the egg will be 122.5m.

This question is from the branch of physics called kinematics. We use equations of motion to find out the unknown quantity from the given data. Let us use the equation of motion, s=ut+1/2*a*t²

where, s is the displacement of the egg in metres

u is the initial velocity of the egg in m/s

a is the acceleration in m/s²

t is the time in seconds

As we know that, the egg is in a freefall condition, its initial velocity is zero and acceleration is nothing but acceleration due to gravity here as it is under the action of gravity.

s=1/2*g*t²

s=1/2*9.8*5*5

s=122.5m

So, the displacement of the egg is 122.5m.

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Scavenger can help break down or reduce organic material into smaller pieces. These smaller pieces are then eaten by decomposers.

They may be called scavengers. They assist damage down or lessen organic cloth into smaller portions. these smaller portions are then eaten through decomposers. Decomposers consume useless materials and spoil them down into chemical components.

In the event that they weren't within the ecosystem, the plant life could no longer get essential vitamins, and dead count and waste might pile up. There are  sorts of decomposers, scavengers and decomposers. Scavengers are animals that locate useless animals or flora and consume them. while they consume them, they spoil them into small bits.

What is the difference among a detritivore and a scavenger?   Detritivores eat organic debris that they discover, from any organisms. Scavengers consume the soft tissues of dead/decaying animals. Detritivores consume organic particles that they discover, from any organisms.

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Let d2 be the hole's diameter. Therefore, the coefficient d2 = d1 (1 + alpha dt) remains constant.

Since a circle's center must be the longest distance between any two points on the circle, the diameter is essentially twice as large as the radius. The distance around a circle or the duration of a circuit along a circle can be used to define its circumference.

The distance that runs through the center of a circle through one point on its surface to another is known as the diameter of the circle.

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In the scientific community determined precise value of Mu to make C12 weigh 12 Mu that indicates that one C12 atom weighs 12/NA grams. because NA = 6.0223 X 10²³.

By definition, an atom of C-12 has a mass of 12 Atomic Mass units.

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Frictional force μk =  T - ma / mg

As block is moving with acceleration 'a', so we will we equilibrium equation.

T - f = ma

T - μk N = ma

μk = T - ma/N

μk = T - ma / mg

where T = tension in rope

          m = mass of block of wood

          g = acceleration due to gravity

The net force acting on an object is equal to the rate at which its momentum varies over time, according to Newton's second law in its original version. This law suggests that an object's acceleration is directly related to its mass if it has a constant mass.

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When a separate branch-circuit is run to a wall mounted oven, or to a counter-mounted cooking unit, the branch circuit size is based on of the nameplate rating of the appliance.

The ratings are shown in watts on the appliance nameplate. The circuit must be sized to provide the required number of amperes to operate the appliance at its nameplate rating.

One ampere is defined as the current that flows through a conductor when a potential difference of one volt is applied across it. The ampere is thus equivalent to the coulomb, the SI unit of charge. The ampere was originally defined as one tenth of the unit of electric current in the centimetre–gram–second system of units.

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It is clear that, what would make object B to have a greater work is that a greater force applied to Object B.

We know that in physics, it is common to understand that work is done when the force that has been applied is said to move a distance in the direction of the force.

Now we have see that when force is applied to an object, we expect that the position of the object would change as a result of the fact that work has been done on the object as we can see. Thus by applying a greater force on B it does a greater work.

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The Charge on smaller of the two charges is 1.747 × 10⁻⁷ C .

When two charges come together, an attractive force occurs for opposite charges and a repulsive force for similar charges. Coulomb's law can be used to calculate the electrostatic force between two charges if the distance between them is known.

Coulomb's Law defines the following equation for this: F.E = Kₑq₁ q₂/r²

Where,

F.E --> electrostatic force in Newton

Kₑ---> Coulomb constant

q₁---> charge of the larger charge in coulombs

q₂---> charge of the smaller charge in coulombs

r ---> distance between the objects in meters

we have given that ,

charge on larger charge(q₁) = 9.56 × 10⁻⁶C

Coulomb constant (Kₑ) = 8.988×109 Nm²C⁻²

distance between two charges = 0.45 m

repulsive force between charges = 0.015 N

putting all the values in above formula we get, 0.015 = (8.988×10⁹ Nm²C⁻² × q₂ × 9.56×10⁻⁶ C)/(0.45)²

=> q₂ = 1.747 × 10⁻⁷ Coulomb

Hence, the charge on smaller charger is 1.747× 10⁻⁷C

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Complete Question :

Two point charges totaling 9.5 uC exert repulsive force of 0.015 N on one another when separated by 0.45 m Randomized Variables.

Part (a) the charge on the larger of the two charges in coulombs = 9.56 * 10-6

Part (b) What is the charge on the smaller of the two charges in coulombs? (Note: If you calculate your answrer using YOur result from part (a). make sure you didn round it substantially.

Electromagnetic waves occur at frequencies between 104 and 1024 Hz and have wavelengths between 10-16 and 104 meters.

All types of electromagnetic waves have in common that their velocity in vacuum is 3.00 × 108 m/s. Radio waves form the long wavelength, low frequency end of the electromagnetic spectrum. The sections of the EM spectrum are named, in order of increasing energy,

gamma rays, X-rays, ultraviolet, visible light, infrared, and radio waves. Microwaves (used in microwave ovens) are a subsection of the radio segment of the EM spectrum. Electromagnetic waves are transverse waves. The wavenumber is k = 2π/λ, where λ is the wavelength of the wave. The wave frequency f is f = ω/2π, where ω is the angular frequency.

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The value of theta for the maximum height is 30°.

Calculation:-

Since the angle from the horizontal is Cosθ, therefore the angle from the vertical is sinθ.

Hmax = U² sin²θ/2g

11.25 = 30² sin²θ/2g

sin²θ = (11.25 × 2 × 10)/900

   ⇒    sin²θ   =   0.25

    ⇒   sin θ = 0.5

    ⇒   sin θ = 1/2 = 30°

The horizontal pace of a projectile is regular (in no way converting in value), and there's a vertical acceleration because of gravity; its cost is 9.8 m/s/s, down, The vertical speed of a projectile changes via nine.8 m/s every second, The horizontal motion of a projectile is impartial of its vertical movement.

Projectile motion is a form of motion experienced with the aid of an object or particle that is projected in a gravitational field, such as from Earth's floor, and movements alongside a curved route below the action of gravity best.

Projectile motion is the movement of an object thrown (projected) into the air. After the initial force that launches the item, it most effectively reports the pressure of gravity. The object is known as a projectile, and its route is called its trajectory.

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Answer:

See below

Explanation:

Answer 3 and 6   with  F = ma    to find the 'a'   or F  

 4 and 5 are also   F = ma     with  a = 9.81 m/s^2

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The upward force the water will exert on the duct is 3.463kN.

Here we have to find the buoyancy force:

Buoyancy force:

The buoyant force is the upward force exerted on an object wholly or partly immersed in a fluid. This upward force is also called Upthrust. Due to the buoyant force, a body submerged partially or fully in a fluid appears to lose its weight, i.e. appears to be lighter.

Formula to calculate buoyancy forces:

B = ρgV

ρ= fluid density

g = acceleration due to gravity

V = fluid volume

V = πr²L

So;

B = ρgπr²L

Given data:

g = 9.8 m/s²

r = 15 cm = 0.15m

L = 20m

ρ = 1000

B = 1000× 9.8 × 22/7 ( 0.15/2)² × 20

  = 3.465kN

Therefore the upward force is 3.465kN.

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The change in gravitational potential energy stored in 16 Jule.

What is gravitational potential energy?

gravitational potential energy

In classical mechanics, of the  gravitational potential energy at in a  location is equal to the work per unit mass that's would be needed to Move an object to that locations from a fixed references  location. It is analogous to the electric potential with the mass playing the role of charge.

Sol-As per the given question ∆PE = mgh

M= skg

g= 4m/s^2

∆h = 2m

∆PE = 2m×4m×2m

= 16 Joules.

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The distance a penny travelled before reaching the water surface is 19.6 m. Consider the acceleration of the penny as 9.8 m / s^2.

What is acceleration?

Acceleration is the rate of change of the velocity with respect to the time taken. it is a vector quantity which is seen as moving faster or happening quickly. The standard unit is metre per second squared.

The distance or depth of the well can be calculated as,

d = ut + at^2 / 2

where d = depth of the well, u = initial velocity, t = time for reaching the water, a = acceleration of the penny.

d = (0 x 2) + 0.5 (9.8) (2)^2 = 19.6 m

Therefore, the stone falls for 19.6 m when it travels for 2 seconds before hitting the water when the acceleration is 9.8 m/s^2.

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When Isabel pushes a shuffleboard disk, accelarating it to a 6,5 m/s before releasing it, the shot will stop in the 10 point section of the board.

The average speed is calculated by dividing the total distance traveled by the total time it took to travel that distance. Speed is the rate at which something moves at any given time. Average speed is the average rate of speed over the course of a journey. .

Velocity is the directional speed of a moving object as an indication of its rate of change in position as observed from a specific frame of reference and measured by a specific time standard.

Since Isabel pushes a shuffleboard disk, accelarating it to a 6,5 m/s before releasing and the coefficient of kinetic friction between the disk and concrete court is 0.31, this will be illustrated thus:

The initial speed of disk = 6.5 m/s

deceleration of disk = 0.31*9.8=3.038 m/s²

Let the distance travelled by disk before coming to stop s

s=6.52/(2*3.038)

s =6.95 m

Therefore, it's within the 10 point range.

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Malware can come in many different forms, but the most prevalent ones are viruses, keyloggers, worms, trojan horses, ransomware/crypto-malware, logic bombs, bots/botnets, adware & spyware, and rootkits.

Currently, there are more than 1 billion malware programmes available. Ransomware assaults affect four businesses per minute. Of all computer malware, trojans make up 58%.

Adware is malware that targets computer users and delivers intrusive advertisements. By claiming compensation from the companies whose ads are served by the malware, the malware's creator can profit. According to Check Point Research, adware is still the most prevalent kind of mobile malware.

Safeguarded Remote Desktop Protocol (RDP) and other risky services. Data backups should be done offline. Inform and educate end users about phishing and social engineering.

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The magnitude of the force exerted on the car to accelerate is 0.5588m N

We got some values here,

v[tex]_{0}[/tex] = 30 mil/h = 13,4112 m/s

v[tex]_{1}[/tex] = 55 mil/h = 24,5872 m/s

t = 20 s

First, we should find the acceleration of the car

a = v/t

a = v[tex]_{1}[/tex] - v[tex]_{0}[/tex] / t[tex]_{1}[/tex] - t[tex]_{0}[/tex]

a = 24.5872 - 13.4112 / 20 - 0

a = 11.176 / 20

a = 0.5588 m/s[tex]^{2}[/tex]

Now we got the amount of acceleration. We can found the force by the formula of: F = m.a but we are not given the mass value in the question. So, we can answer this question by this way

F = m.a

F = m × 0.5588 m/s[tex]^{2}[/tex]

F = 0.5588m N

Acceleration (a) is the change in velocity (Δv) over the change of time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how quick velocity changes in meters per second squared (m/s[tex]^{2}[/tex]. Acceleration is also a vector quantity, so it includes both magnitude and direction.

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