an object of unknown weight is suspended as shown. the tension in rope 1 is 25N and the tension in rope 2 is 31N. what is the weight of the suspended object?

Answer: Snowy and rainy

Explanation:

The Distance Travels after 5s is 50 m.

First equation of motion: v = u + at.

Second equation of motion: s = ut + 12 at2

Third equation of motion: v2 = u2 + 2as.

A physical system's behavior in terms of how its mobility varies over time is described by equations of motion.

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The centripetal force acting on the car is 4500 N

The force that acts on the body to make it follow a circle is known as centripetal Force.

Mass m = 900 kg

speed v = 30 m/s

radius r = diameter/2 =  m

To calculate Centripetal force:

[tex]F_{c}[/tex] = mv^2/r

[tex]F_{c}[/tex] = 900×30^2/180

[tex]F_{c}[/tex] = 4500 N

The centripetal force of the car is 4500 N.

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A graph type called a velocity vs. time graph compares how velocity changes over time. This kind of graph can be used to determine an object's displacement, acceleration, and velocity as well as its direction of motion.

While speed and velocity are similar, they are not the same. Velocity is a vector quantity with direction. There is a magnitude, a direction, and units for every vector quantity. The change in displacement, another vector, over time is referred to as velocity. Speed is a scalar quantity with no direction that calculates how quickly something moves. By dividing the distance by the time, one may calculate speed.

As a result, in a graph of speed vs time, the slope corresponds to acceleration, whereas the area under the curve corresponds to distance rather than displacement.

The driver of an automobile moves onto the highway. They must first accelerate and move into the right lane in order to merge. After a few miles of continuous pace, they run upon some road construction. They slow down, which regrettably causes them to sit in halted traffic for the following few seconds.

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The ball land back on the ground at the distance of 37.75 meters from the point it was kicked after completing the projectile.

What is projectile?

The term "projectile" refers to an item that is pushed by the application of an external force, then moves freely while being influenced by gravity and air resistance. Even though everything that travels through space is a projectile, they are widely used in both sports and conflict (for example, a thrown baseball, kicked football, fired bullet, shot arrow, stone released from catapult)

the ball is kicked at the speed of 15.7 m/s with degree 51.6° angle.

Vertical velocity = 15.7 sin51.6 = 15.7(0.783) = 12.3 m/s

Horizontal velocity = 15.7 cos51.6 = 15.7(0.962) = 15.1 m/s

Lets calculate the time of flight:

v = u + at

Here, v = final vertical velocity, a = gravitational acceleration, u = initial vertical velocity, t = time

putting the values

0 = 12.3 + 9.8(t)

t = -1.25 s

times cant be negative so we consider it as 1.25 seconds

This is half time, IN the compete projectile the ball will reach at the top and then again come to land taking the same time. so,

T = 2t = 2(1.25) = 2.5 seconds

Calculating the range:

Distance = speed(time)

Speed = Horizontal velocity = 15.1 m/s

time = 2.5 s

putting the values

Distance = 15.1(2.5) = 37.75 m

Therefore, the ball land back on the ground at the distance of 37.75 after full projectile.

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The final velocity of the 2000 kg car with a net force of 500 N being applied to the left for 10 sec is - 2.5 m / s

a = ( v - u ) / t

F = Force

m = Mass

a = Acceleration

v = Final velocity

u = Initial velocity

t = Time

t = 10 s

u = 0

a = ( v - 0 ) / 10

a = v / 10

According to Newton's second law of motion,

F = m a

F = Force

m = Mass

m = 2000 kg

F = - 500 N

- 500 = 2000 * ( v / 10 )

v = - 2.5 m / s ( Negative sign indicate the object is moving towards left )

Therefore, the final velocity of the car is - 2.5 m / s

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Answer:

pie

Explanation:

pie

According to the given statement The total work done on the crate in 17.57 J.

When a force is applied to an item, it is deemed to have "done work" if the object travels a distance in the direction of the force. The result of force and displacement are the same. Displacement times Force equals work.

Mass of the crate, m = 66kg

Force applied by the worker, F = 3.9 N

Angle to the horizontal, θ = 39°,

Distance moved by crate, d=5.8m

Work = Force * Displacement

Total work done on the crate

W = Fcosθ × d

W = 3.9× cos 39 × 5.8

W = 17.57 J

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Answer:

B

Explanation:

i hope it hleps

The magnitude of the gravitational force produced between moon and every gram of sand on its surface is  1.66 x 10⁻³ N.

The gravitational force between the moon and every gram of sand on its surface is determined by applying Newton's law of universal gravitation.

This law states that every object in the universe attracts each other with force that is directly proportional to the product of the masses and inversely proportional to the square of the distance between the objects.

F = Gm₁m₂/R²

Where;

F = (6.67 x 10⁻¹¹ x 0.001 x 7.2 x 10²²) / (1,700,000)²

F = 1.66 x 10⁻³ N

Thus, from the magnitude of the gravitational force produced between moon and every gram of sand on its surface, we can say that it is quite small.

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In this case, anaerobic metabolism is utilized.

The process of producing ATP anaerobically, also known as without oxygen or in the absence of oxygen, involves the direct phosphate transfer from phosphorylated intermediates like creatine phosphate or glycolytic intermediates to ADP, which in turn produces ATP.

Lactic acid builds up as a result of the anaerobic metabolism of glucose, which causes metabolic acidosis. A base deficit results from the reaction between lactic acid and bicarbonate, which lowers serum bicarbonate levels.

Anaerobic metabolism only produces two ATP molecules for every glucose molecule while aerobic metabolism produces more ATP and depends on oxygen.

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Answer:4.7

Explanation:

When the Sun passes through the nodal eclipse zones, the eclipses would last approximately 6 hours, with there being a chance of two solar eclipses every 34.5 days.

Each year, there are two to five solar eclipses, with a total eclipse occurring roughly every 18 months. You might be able to see that eclipse, depending on where you are in the world. The view of the eclipse and the Moon's shadow on Earth move from west to east as the Earth rotates.

This is due to the fact that there are roughly 15 days (or a fortnight) between a full moon and a new moon, and vice versa. There are enough days (30 days) for two more eclipses if one occurs at the start of the season.

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The equipment that are usually involved in the production of electricity are generators.

The most commonly used electricity generation equipment are Turbines. Different types of turbines are used such as:

An electrical generator is used along with the turbine to convert the mechanical energy produced by the turbine into electricity.

Some of the other equipment used to generate electricity are

Therefore, the equipment that are usually involved in the production of electricity are generators.

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Answer:

Non-electric appliances you might already own

Coffee percolator. They make delicious coffee and are convenient for camping trips. ...

French press: This is another coffee maker that is as easy to use as a percolator. ...

Manual mixer. ...

Hand flour mill. ...

Dough maker. ...

Food strainer. ...

Manual food processor. ...

Zeer clay pot fridge.

Explanation:

non-electric equipment are use in the production of a work piece that does not involve the use of electrical equipment

The weight of a 179 kg of football player is 1755.99N.

Weight is the force on an object due to the gravitational attraction between it and the Earth.

Weight is a function of an object's mass and acceleration due to gravity, hence, can be calculated by multiplying the mass of the object by its acceleration.

According to this question, the mass of a football player is 179 kg is given. The acceleration due to gravity on Earth is 9.81m/s². The weight can be calculated as follows:

Weight = 179kg × 9.81m/s²

Weight = 1755.99N

Therefore, 1755.99N is the weight of the player.

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The relative velocity with respect to the dock is 6.5j + 1.1 i m/s m/s.

We need to know about relative velocity to solve this problem. The relative velocity depends on the object and observer velocity. It can be written as

v = vo ± v'

where v is relative velocity, vo is object velocity and v' is observer velocity.

From the question above, we know that

vo = 6.5 j m/s

v' = 1.1 i m/s

The velocity will be added each other because the direction of the observer is different from the object.

v = vo + v'

v = 6.5j + 1.1 i

v = 6.5j + 1.1 i m/s

Thus, the relative velocity is in vector form.

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The purpose of this experiment is to understand series and parallel circuits, how to calculate their equivalent resistance, and how to construct the laboratory.

There are two or more paths that current to travel through in a parallel circuit. Each element of the parallel circuit has the same voltage applied to that too. The total current flowing from the source is equal to the sum of a currents through each path.

When one route is blocked, electricity continues to flow thanks to a parallel circuit. Numerous lighting fixtures are a great example. Even if just one light in the fixture fails, led light stays on.

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The distance travelled by the athlete given the play lasted for 5.0 seconds is 21.25 m

We'll begin by listing out the parameters given from the question. This is given below:

From the given parameters, we can determine the distance as follow:

s = ut + ½at²

s = (0 × 5) + (½ × 1.7 × 5²)

s = 0 + 21.25

s = 21.25 m

From the above calculation, we conclude that the athlete ran 21.25 m during the 5 seconds play.

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The car must be travelling at a speed of 28.21 m / s in order to land 90 m from the base of a 50 m high cliff.

According to Equations of motion,

s = ut + 1 / 2 at²

s = Distance

u = Initial velocity

t = Time

a = Acceleration

In vertical motion,

s = 50 m

u = 0

a = 9.8 m / s²

50 = 0 + 1 / 2 * 9.8 * t²

t² = 50 / 4.9

t² = 10.2

t = 3.19 s

In horizontal motion,

s = 90 m

a = 0

90 = 3.19 u + 0

u = 90 / 3.19

u = 28.21 m / s

Therefore, the initial speed of the car must be 28.21 m / s

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Answer:

The effective mass at the 50 cm mark will be 1.5 kg because the meter stick is uniform and .5 kg can be considered to be acting at 50 cm

3 * (50 - x) = 1.5 * x

Balancing torques where x is the distance from the 50 cm mark

150 - 3 x = 1.5 x

x = 150 / 4.5 = 33.3

x would be at 50 - 33.3 = 16.7

Check:     3 * 16.7 = 1.5 * 33.3

50.1 = 50      within rounding

The total mechanical energy of the spring is 4.275 x 10⁻⁶ J.

The total mechanical energy of the system if no energy is lost from the system is calculated as follows;

U = ¹/₂kx²

where;

The extension of the spring is calculated as follows;

F = kx

x = F/k

x = mg/k

x = (0.006 x 9.8) / 380

x = 0.00015 m

The mechanical energy of the spring is calculated as follows;

U = ¹/₂(380)(0.00015)²

U = 4.275 x 10⁻⁶ J

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The complete question is below:

A student building a game wants to launch a 0.0060kg using a spring. The spring constant is 380N/m. Assume no mechanical energy is lost from the system. find the total mechanical energy of the system

A mountain climber is hanging from a vertical rope, far above the ground and far from the rock face. the forces on the mountain climber are

This is further explained below.

Generally, Tension is defined as the pulling force that is transmitted axially by the means of a string, a cable, a chain or another object of a similar nature, or by each end of a rod, truss member, or another object of a similar three-dimensional nature.

Alternatively, tension can be defined as the action-reaction pair of forces that act at each end of the elements in question.

The gravitational pull that gravity exerts on an item is quantified by that object's weight.

There is a common conception that weight is a vector quantity that represents the gravitational force that is exerted on the item. Some people consider weight to be a scalar number, which they define as the intensity of the gravitational pull.

In conclusion, One of the mountain climbers is suspended on a rope that runs vertically up the mountain, high above the earth, and away from the rock face. Tension and weight are the forces acting upon the mountain climber.

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CQ

A mountain climber is hanging from a vertical rope, far above the ground and far from the rock face. The rope is vertical. Identify the forces on the mountain climber.

Make us of equation of motion formulas.

a.) the total time of flight = 8.16 s

b.) the maximum height reached = 81.6 m

c.) the velocity at t = 5s = 9 m/s

Motion of any object under gravity is the vertical motion of the object under the influence of acceleration due to gravity.

Given that a ball is projected with 40 m/s vertically upward.

A. the total time of flight of the ball will be T = 2t

At maximum height, v = 0.

v = u - gt

0 = 40 - 9.8t

9.8t = 40

t = 40 / 9.8

t = 4.08 s

T = 2 × 4.08

T = 8.16 s

B. the maximum height H can be found by using the formula

v² = u² - 2gH

At maximum height, v = 0

0 = u² - 2 × 9.8 × H

40² = 19.6H

H = 1600/19.6

H = 81.6 m

C. the velocity at t = 5s will be v

v = u - gt

v = 40 - 9.8 × 5

v = 40 - 49

v = - 9 m/s

That is, 9 m/s in the opposite direction ( coming downward )

Therefore, the total time of flight of the ball is 8.16 s, the maximum height reached is 81.6 m and the velocity at t = 5s is 9 m/s

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Answer: acceleration of the train = 7 m/s^2

Explanation: We are going to use the formula for acceleration,

acceleration of a moving body is the change in speed per unit of time, hence the formula for finding acceleration is

a = (v-u)/t
here, a = acceleration
         v = final speed
         u = initial speed
         t = total time taken

here (v-u) will give the change in velocity since it's the difference between the final and initial velocity of the train

Given, v = 17 m/s

           u = 3 m/s

            t = 2 s

∴ a = (17-3)/2
     = 14/2
     = 7 m/s^2

The relationship between instantaneous speed and instantaneous velocity is that instantaneous speed is the magnitude of the instantaneous velocity.

Instantaneous velocity is the rate of change of position for a very small interval of time. The interval of time so that that its value is almost zero. Instantaneous speed is the magnitude of instantaneous velocity without any direction.

The instantaneous velocity is vector quantity just like velocity and the instantaneous velocity is a scalar quantity just like speed. The value of if instantaneous velocity with direction is instantaneous velocity.

Therefore, the relationship between instantaneous speed and instantaneous velocity is that instantaneous speed is the magnitude of the instantaneous velocity.

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Explanation:

A moving object always has kinetic energy store

Answer:

????

Explanation:

Self-confirmation bias is looking for information the support a personal perception while hindsight bias is a past predictions.

An illusory correlation is the type of correlation that is perceived to exist between two variables even when there is actually no relationship existing between them.

There are two types of illusory correlation that includes the following:

Therefore, looking for the information that supports personal perception and the ability to generate past predictions helps in illusory correlation.

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