A body moving with uniformly acceleration A has two point (5,15) and ( 20,60) on the velocity time graph of its motion. Calculate A. Pls I would like if the graph can be drawn I have the workings

e option is the correct answer - 2890m

Initial velocity(u) = 0[tex]m/s[/tex]

Accelaration(a) = 3.20[tex]m/s^{2}[/tex]

time(t) = 42.5s

The equation S = u t + 1 2 a t 2 is newton's second equation of motion. Here, 'S' represents the displacement of a body, 'u' represents the initial velocity of a body, 't' represents the time taken by the body to cover the displacement in t time(seconds), and 'a' represents the constant acceleration of a body throughout the movement.

[tex]s = ut + 1/2at^{2}[/tex]

[tex]s = 0(t) + 1/2(3.20)(42.5^{2}) \\s = 1/2(5780)\\s = 2890m[/tex]

The value of s is 2890m.

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The way that the clock at the rim of the space station compare with one residing at the hub is that Rim clock will always runs slower.

The behavior of a clock sitting on the surface of a planet with a surface gravity of one g is the same.

For instance, timekeeping on the International Space Station (ISS) is slightly slower than that of reference clocks on Earth. This explains why astronauts on the International Space Station (ISS) mature more slowly, lagging by 0.007 seconds every six months.

Ground-based atomic clocks have served as the industry standard for timekeeping since the 1950s. These clocks use the extremely steady and accurate frequencies of light emitted by particular atoms to keep time.

Therefore, Satellite clocks run slower due to more velocity but faster due to reduced gravity. Clocks move more slowly at the ISS orbital height because velocity dominates. At GPS altitude, clocks move more quickly due to the influence of gravity.

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Explanation:

1. Dimension formula of luminous flux matches with which of the following?

Force

Rotational impulse

Momentum

Power

Answer: d) Power

Answer:

a. 1.1 m/s^2

Explanation:

Force of Application = (60)(cos30)

= 51.96 N

Force of Friction = 30 N

Total Force = 51.96 - 30

= 21.56 N

F = ma

21.56 = 20a

a = 1.09

a = 1.1 m/s^2

The weight of the container on Mars is 296 N.

The weight of the container on Uranus  is 696 N.

The mass of the container on both Mars and Uranus is constant.

The weight of an object is the measure of effect of gravitational force on an object.

The weight of an object changes with change in acceleration due to gravity.

Mathematically, weight of an object is given as;

W = mg

where;

The mass of an object is defined as the quantity of stuff contained in an object.

The mass of an object does not change with gravity.

The weight of the container on Mars is calculated as follows;

W = mg

where;

W = 80 x 3.7

W = 296 N

The weight of the container on Uranus  is calculated as follows;

W = mg

where;

W = 80 x 8.7

W = 696 N

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Answer:

he weight of the container on Mars is 296 N.

The weight of the container on Uranus  is 696 N.

The mass of the container on both Mars and Uranus is constant.

Explanation:

Answer:

Air resistance

PLEASE GIVE BRAINLIEST THANK YOU!!!

Answer: It should be B

Explanation:

The reason being that stars are constantly moving, and you may seem the see the same stars but in a different location or not see them at all. Hope this was helpful. :)

Answer:

the answer is B

Explanation:

The intensity of the sound at a disatance of 3.0 m and 9.0 m from the 350 watt speaker is 3.09 db and 0.34 db respectively.

Sound intensity, also known as acoustic intensity, is defined as the power carried by sound waves per unit area in a direction perpendicular to that area.

To calculate the intensity of sound, we use the formula below.

Formula:

Where:

Given

At a distance of 3m,

At a distance of 9.0 m,

Hence, the intensity of the sound at a distance of 3.0 m and 9.0 m is 3.09 db and 0.34 db respectively.

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Particles with the like charges attract while opposites repel therefore the third charge has to be placed on the right side of -q charge for the electric force to be zero at a distance of 6.8 from the origin.

Electric force is measured = (kq₁q₂)/r²

Where k is a constant,

q₁ is charge of the particle at the origin, +2,

q₂ is the charge of the particle on the x-axis, -q

r is the distance from origin

2a is the distance from -q

e is electric force, 0

Let distance of particle from -q be x and +2q be y

y - x = 2a

x = y - 2a

kqe/x² = k2qe/(x + 2a)²

((x + 2a)/x)²  = 2

(1 + 2a)/x = √2 cross multiply

x = 2a/(√2 - 1) = 4.8284a

x = 4.8284a

y = x + 2a

y = 4.8284a + 2a

y = 6.8284a approximately 6.8a

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The PEN model is a biological theory of nature developed by influential psychologist Hans Eysenck (1916-1997). The model pivot on three broad personality factors: psychoticism, extraversion, and neuroticism (PEN).

In the PEN model, character comprises three major dimensions: extraversion, neuroticism, and psychoticism. These pictorial dimensions have Former developing the PEN model, Eysenck chase to quantify personality based on two sizes: extraversion-introversion. Before evolving the PEN model, Eysenck sought to measure nature in two sizes: extraversion-introversion and neuroticism-emotional. Eysenck's PEN theory has suggested an influential classification for the biological basis of personality dimensions: Psychoticism

So we can conclude that The PEN model contains three personality dimensions based on psychophysiology: Psychoticism, Extraversion, and Neuroticism.

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See below

3.15 m

When the Moments around thefulcrum , F , are equal, any increase in 'x' will cause a tip

I placed the weight of the board sections at the middle of the sections ...I think this is correct (?  It has been a long time since I did simple Physics)

L moment = R moment

1.5 * 18   =   100 * x    + 1 * 12

x = .15    m    from the fulcrum or   3.15 m from the L end

(hope it is correct !)

The foundation of biology is modern cell theory, which is a commonly recognized explanation of the relationship between cells and living things.

Because it has been independently verified by numerous scientists working together, scientific knowledge is regarded as lasting. Independent researchers utilize the scientific method to generate factual data and knowledge that adds to the body of knowledge in their subject.

A generalized collection of laws and hypotheses developed using the scientific method and intended to explain a phenomenon or behavior of interest is referred to as scientific knowledge. Theories are methodical explanations of the underlying phenomenon or behavior, whereas laws are recognized patterns of occurrences or behaviors.

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Answer:

A =Magnetic fields

Explanation:

The rate of acceleration of the hockey puck with a mass of 170 g is 0.88 m/s².

Acceleration can be defined as the rate of change of velocity.

To calculate the acceleration of the puck, use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, puck's rate of acceleration is 0.88 m/s².

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Answer:

The Cascadia Subduction Zone has not produced an earthquake since 1700 and is building up pressure where the Juan de Fuca Plate is subsiding underneath the North American plate.

Explanation:

At depths shallower than 30 km (19 mi) or so, the Cascadia zone is locked by friction while stress slowly builds up as the subduction forces act, until the fault's frictional strength is exceeded and the rocks slip past each other along the fault in a megathrust earthquake. Below 30 km (19 mi) the plate interface exhibits episodic tremor and slip .

(a) The change in monetum of the car of mass 1000 kg is 14000 kgm/s .(b) The average force on  the car as it accelerates is 933.3 N.

This can be defined as the product of the mass of a body and its change in velocity.

To calculate the change in momentum, we use the formula below.

Formula:

Where:

From the question,

Given

Substitute these values into equation 1

Also, to calculate the average force of the car, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute into equation 2

Hence, (a) The change in monetum of the car is 14000 kgm/s (b) The average force of the car is 933.3 N.

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Answer: Displacement between 0s and 6s = 2

Explanation:0+2=2

14 mΩ should the internal resistance be for the maximum current in

the above situation to be 1.00 mA or less .

What is internal resistance ?

Internal resistance refers to the resistance to current flow provided by the cells and the battery itself, resulting in heat generation. Internal resistance is measured in ohms. The relationship between the internal resistance (r) and electromotive force (e) of cell s is given by

e = I (r + R)

where e = EMF, or H. electromotive force (volts), I = current (A), R = load resistance, r is the internal resistance of the cell, measured in ohms.

Rearranging the above formula, we get: e = IR + Ir or e = V + Ir

In the above equation, V is the potential difference (clamp) across the cell when current (I) is flowing through the circuit.

r = E-Ir/I

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The following choice is an example of gathering evidence in Taking measurements. Option B.

The scientific method is the process of objectively establishing facts through testing and experimentation. The basic process is to make observations, form hypotheses make predictions conduct experiments and finally analyze the results. Accurate readings are evidence-based.

Without evidence the author just states his opinion. So writing an essay begins with gathering evidence long before writing it. The advantage of naturalistic observation is that the researcher can directly observe the subject in its natural environment. This method gives scientists direct insight into social behavior and helps them realize things they might not have encountered in a laboratory setting.

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A wind turbine transfers kinetic energy to mechanical energy from energy stores, which is then used to generate electricity.

Wind energy is a type of renewable source of energy that can be used for converting it into electrical energy by the use of turbines that transform mechanical energy into electricity, which is then used for different purposes (both industrial and  particular home usage).

Therefore, with this data, we can see that wind energy can be used to generate electricity by means of turbines that convert mechanical energy into electricity.

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Answer:

C: 5

Explanation:

MA = radius of wheel/ radius of axle

MA =2.5/0.5

MA = 5.0

Velocity is different from speed because it has both size and direction.

Velocity is a vector quantity that denotes the rate of change of position with respect to time, combining speed with a directional component.

On the other hand, speed is the magnitude of the velocity; the rate distance is traversed in a given time.

Speed is a scalar quantity meaning that is does not have direction while velocity is a vector quantity meaning that it posseses both magnitude (size) and direction.

Therefore, speed and velocity differs in the sense that the latter is a vector quantity.

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A person who is high in comfort with closeness and high in anxiety over abandonment in Bartholomew's attachment model is known as a generalized anxiety disorder

An individual is said to be suffering from a generalized anxiety disorder when he or she worries too much, gets worried constantly or excessively and subjects the person to being abandoned to his problem or situation. It is on this premise that such individuals are usually in Bartholomew's attachment model.

So therefore, we can now confirm and deduce from the simple note given above that a generalized anxiety disorder have great negative impact on our wellness.

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Battery-powered clocks and Washing machines are objects that transform chemical energy into mechanical energy.

Chemical energy is a type of energy that is stored in the bonds of a chemical. It is converted into thermal energy when people burn wood or burn gasoline in the engine of a car. Mechanical energy is a type of energy that is stored in objects by tension. Compressed springs and stretched bands are examples of mechanical energy.

Mechanical energy i.e. kinetic energy or potential energy is the energy that is present in an object in motion or the energy that is stored in objects due to their position. Mechanical energy is a type of renewable energy.

So we can conclude that options A and C are the correct answers.

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For a 2.0 kg block is pushed 2.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0, the work done is 8.3 J

This refers to the term that shows the product of the displacement of an applied force in a given direction.

Hence, the calculations are:

The work done by a force pushing an object is given by:

W= Fdcos[tex]\alpha[/tex]

where

d= 1m

[tex]\alpha[/tex] = 63 degrees

W= (18.3)(1)(cos 63 degrees)

=8.3J

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A 2.0 kg block is pushed 1.0 m at a constant

velocity up a vertical wall by a constant force

applied at an angle of 27.0

◦ with the horizontal, as shown in the figure.

The acceleration of gravity is 9.81 m/s

2.

If the coefficient of kinetic friction between

the block and the wall is 0.40, find

a) the work done by the force on the block.

Answer:

b)

Explanation:

A graphene aerogel is seven times lighter than air, with the same mass, its volume is greater

The volume is inversely proportional to density. Graphene aerogel has the least density of platinum. Hence, a ton of graphene aerogel takes up more volume than a ton of platinum.

Density (ρ) is the ratio of mass and volume. Volume represents the space occupied by a substance in three-dimension. Mass is an intrinsic property that represents the quantity of a substance.

ρ = m / V. ρ represents density and its SI unit of density is kg/m³. m represents mass and its SI unit is kg. V represents volume and its SI    unit is m³.

Density is inversely proportional to volume. Density increases with a decrease in volume.  Density decreases with an increase in volume. Density is directly proportional to mass.

The density of graphene aerogel ranges from 0.11-0.19 g/cm³. The density of platinum is 21.45 g/cm³. Hence, volume is greater for lesser density and vice-versa.

The mass of a ton of platinum is lesser compared to the mass of a ton of graphene aerogel. Density increases with an increase in mass and density decreases with a decrease in mass.

Hence, a ton of graphene aerogel can take up a larger volume than a ton of platinum. Thus, option B is correct.

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A. The distance from the edge that the car will lad is 48.75 m.

B. The velocity it hit the ground with, v is 19.1 m/s in the forward direction.

The distance from the edge will the car traveling at a velocity of 25 m/s is calculated as follows:

Time taken = √(2h/g)

where h is the height = 18.6 m

g is the acceleration due to gravity = 9.8 m/s²

t = √(2 * 18.6/9.8)

t = 1.95 seconds

Distance = 25 * 1.95

Distance = 48.75 m

The velocity it hit the ground with, v is calculated as follows:

v²= u² + 2gh

where;

u is initial vertical velocity = 0

g = 9.8 m/s²

h = 18.6 m

v = √2gh

v = √(2 * 9.8 * 18.6)

v = 19.1 m/s in the forward direction.

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The work done by the cat is 500J and the force with which the frog hit the lily pad is 5N.

The definition of work includes both the force that is applied to the body and the displacement of the body.

Think about a block that is resting on a horizontal, frictionless floor. A constant force F acts on this block. The result of this force is to move the body d meters in a straight line in the force's direction.

Work done = Force * displacement

Work done = 50N * 10m

Work done = 500Nm

Thus, the work done by the cat is 500J.

Force = Work done / displacement

Force = 10J /  2m

Force = 5N

Thus, the force with which the frog hit the lily pad is 5N.

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Since the collision is inelastic, both vehicle will move with a common velocity of 2.5 m/s in south east direction after collision.

It states that, the sum of the momentum before collision is equal to the sum of the momentum after collision.

Given that a 7500 kg truck traveling at 5.0 m/s east collides with a 1500 kg car moving at 20 m/s in a direction 30° south of west. After collision, the two vehicles remain tangled together.

The given parameters are;

The formula to find the speed will be

M1U1 - M2U2 = (M1 + M2)V

7500 × 5 - 1500 × 10 = (7500 + 1500)V

37500 - 15000 = 9000V

22500 = 9000V

V = 22500/9000

V = 2.5 m/s

Therefore, the common speed will be 2.5 m/s and the direction of the car will be toward the south east.

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Answer: Change in gravitational potential energy = 5500 KJ

Explanation:

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