Pick the false statement.A) Our assumed temperature shape can satisfy the weak form with the assumed piecewise linear variation of w(x) but not the strong form (i.e. the original differential equation).B) The order of the temperature derivative in the weak form is the same as in the strong form.C) Derivation of the weak form involves integration by parts.D) The weak form needs to be satisfied for any value of the weighting function w(x) at the nodes.

Answer:

\(5\; {\rm m\cdot s^{-1}}\).

Explanation:

Displacement is the change in position. In this example, the position of this ball changed from the initial value of \(x_{0} = (-5)\; {\rm m}\) to the final value \(x_{1} = 0\; {\rm m}\). Subtract the initial position from the final position to find the change in position:

\(\begin{aligned} & (\text{Displacement}) \\ =\; & (\text{Change in Position}) \\ =\; & (\text{Final Position}) - (\text{Initial Position}) \\ =\; & 0\; {\rm m} - (-5)\; {\rm m} \\ =\; & 5\; {\rm m} \end{aligned}\).

Velocity is the rate of change in position. To find average velocity (average rate of change in position), divide the total change in position (displacement) by the time required for the change:

\(\begin{aligned} & (\text{Average Velocity}) \\ =\; & \frac{(\text{Total Change in Position})}{(\text{Time Required})} \\ =\; & \frac{(\text{Displacement})}{(\text{Time Required})}\\ =\; & \frac{5\; {\rm m}}{1\; {\rm s}} \\ =\; & 5\; {\rm m\cdot s^{-1}} \end{aligned}\).

Therefore, the average velocity will be \(5\; {\rm m\cdot s^{-1}}\).

Some of the main characteristics that allow us to differentiate star systems are:

There are several characteristics that can be used to differentiate star systems. The three main characteristics are:

By examining these characteristics, astronomers can classify star systems and learn more about their formation and evolution.

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D. The slope of the line is equal to zero and the object will be in motion.

Velocity of a body is said to be constant, if it covers equal distances in equal intervals of time, and also does not change the direction it is moving in

To have a constant velocity, an object must have a constant speed in a constant direction.

slope = change in velocity / change in time

if the velocity is constant, then change in velocity = 0

slope = 0/change in time = 0

In constant velocity, the object will be in motion, but the velocity of the object will not change.

Thus, the slope of the line is equal to zero and the object will be in motion.

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Hello! Lets begin!

1. Which answer best describes displacement?

2. Kelley is playing pool and hits the cue into the nine ball, which is directly in the center of the pool table. The nine ball travels a total of 7 meters before stopping, 1 meter to the left of the initial starting point of the nine ball. Which sentence reflects the correct statement regarding distance and displacement when considering the motion of the nine ball?

3. What is velocity?

4. Imagine a time-position graph where the velocity of an object is constant. What will be observed on the graph concerning the slope of the line segment as well as the velocity of the object?

5. Select the option that best summarizes the reason for the use of position-time graphs when studying physical science.

_______________________________________________________

Good luck my peeps! ;D

1. The atomic mass of the new atom be 223. Option (d) is correct.

2. The atomic number of the new atom be 88. Option (g) is correct.

3. The symbol of the new atom be Ra.  Option (e) is correct.

4. Beta decay is demonstrated here. Option (c) is correct.

A proton inside the radioactive sample's nucleus can change into a neutron or vice versa through a process known as beta decay. Because of processes like beta decay and alpha decay, the radioactive sample's nucleus is able to get as close as practical to the optimum neutron/proton ratio.

A beta particle, which can either be an electron or a positron, is released by the nucleus during this process. Think about the potential for a proton or neutron to decay into another particle. The production of the electron and positron adheres to the law of charge conservation. Beta-decay is the outcome of weak interaction.

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1) Solar energy

2) Mechanical energy

3) Electrical energy and light energy

4) Mechanical energy

5) Heat and light energy

6) Electrical energy

Energy transformation, also known as energy conversion, is the process by which energy is transferred from one form to another. Energy exists in many forms, including thermal energy, light energy, kinetic energy, potential energy, and chemical energy. In any energy transformation, the total amount of energy remains constant, but its form changes.

The efficiency of an energy transformation is the percentage of the input energy that is transformed into useful output energy. In some cases, some energy is lost as heat or waste, decreasing the overall efficiency of the transformation.

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Answer:

a)

Weight in Air = 0.3N

Weight in Water = 0.25N

Weight in Liquid = 0.24N.

Upthrust /Buoyant Force = Weight in Air – Weight in Fluid(Water in this case)

= 0.3 – 0.25

= 0.5N.

b) R.D of Body = Density of Body/Density of Standard Fluid(Water).

There's a Derived Formula for RD.

I'm gonna Apply it here.

Ask me for the derivation in the Comment section if you need it.

RD = α/ρ = (Weight in Air) / (Upthrust Force)

Where

α = density of the Body(or reference substance)

ρ = density of standard fluid (water)

= 0.3/0.05 = 6.

c) RD of Liquid = (Density of Liquid) /(Density of standard Fluid(water)

Or we just go by that formula

RD of Liquid = Weight in Air/Upthrust(In Liquid)

We'll be using the Upthrust in that Liquid now.

= 0.3 – 0.24 = 0.06

RD = 0.3/0.06 = 5.

Answer:

She took it as priority and got to work

Answer:

because carbon 14 has only a short half life, rather than other elements with longer half lives.

Explanation:

✨science✨

TOTAL FLIGHT TIME

Rising Projectile

vi = initial velocity = 58.8 m/s

vf = final velocity = 0

g = gravity acceleration = -9.81 m/s²

t = elapsed time = to be determined

vf = vi + gt

vf - vi = gt

(vf - vi)/g = t

t = (vf - vi)/g

t = (0 - 58.8)/-9.81

t = -58.0/-9.81

t = 5.99 s ≈ 6.00 s

Falling Projectile

vi = initial velocity = 0

vf = final velocity = 58.8 m/s

g = gravity acceleration = 9.81 m/s²

t = elapsed time = to be determined

vf = vi + gt

vf - vi = gt

(vf - vi)/g = t

t = (vf - vi)/g

t = (58.8 - 0)/9.81

t = 58.0/9.81

t = 5.99 s ≈ 6.00 s

t(total) = t(up) + t(down) = 6.00 s + 6.00 s = 12.0 s Total Flight Time

HORIZONTAL DISTANCE TRAVELED

v = velocity, horizontal = 20.0 m/s

d = to be determined

t = elapsed time = 12.0 s

v = d/t

vt = d

d = vt

d = (20.0 m/s)(12.0 s)

d = 240 m Horizontal Distance Traveled

00

Given that the radius of the circular path is r = 142 m and the coefficient of the friction is

The condition for the car to travel safely is

Frictional force = centrifugal force

Here, m is the mass of the car and the acceleration due to gravity is g = 9.8 m/s^2.

v is the maximum speed of the car.

Answer:

13.42m/s

Explanation:

0.5 multiply by 4 = 2kg

360J divided by 2kg = 180

square root 180= 13.42m/s

The direction of the force from wire 1 on wire 2 is attractive, as the two currents are in the same direction.

If two currents are flowing in the same direction and the forces between the wires are attractive, then the direction of the force on wire 2 due to wire 1 will be towards wire 1. This is because the magnetic field created by the current in wire 1 will induce a magnetic field in wire 2, and the interaction between these two magnetic fields will result in an attractive force between the wires.

In summary, if two currents are flowing in the same direction and the forces are attractive, the direction of the force on wire 2 due to wire 1 will be towards wire 1.

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Answer:

Answers are below hopefully they're correct and what u need

Explanation:

1. Step 1: Given

The distance is 600 km, since 100(speed) x 6 (time) = 600

2. Step 2: Formula

s = d/t

d = t x s

t = d/s

3. Step 3: Substitue

s = 600/6

d = 100 x 6

t = 600/100

4. Step 4: Solve

600/6 = 100

100 x 6 = 600

600/100 = 6

Step 5: Answer

Therefore, the distance is 600km, the speed or rate is 100 km/hr, and the time is 6hrs.

NUMBER 2

1. Step 1: Given

Distance = 200 m

Rate or speed = 8m/s

Time = ?

2. Step 2: Formula

s = d/t

d = t x s

t = d/s

3. Step 3: Substitue

t = 200/8

s = 200/25

d = 25 x 8

4. Step 4: Solve

200/8 = 25

25 x 8 = 200

200/25 = 8

5. Step 5: Answer

Therefore, the time is 25sec, distance is 200m, and speed or rate is 8m/s

Answer:

vivi I is here and I will come up was wondering what do you think about this I don't know

The tension does no (zero) work

F· S = W

Since the tension is perpendicular to the direction of motion, and there is no change in S the work done is zero.

Answer:

it's C! electromagnetic

Explanation:

The release height of the basketball is 0.05 m.

Projectile motion is a form of movement skilled by way of an item or particle that is projected in a gravitational area, which includes from Earth's floor, and actions alongside a curved route below the movement of gravity most effective.

Projectile motion is the motion of an item thrown (projected) into the air. After the initial force that launches the object, it best experiences the pressure of gravity. The item is known as a projectile, and its course is known as its trajectory.

The course of a projectile is parabolic. for the duration of the movement, the acceleration of the projectile is regular and acts vertically downwards being equal to g. The angular momentum of projectile = mu cos Θ × h wherein the price of h denotes the height.

calculation:-

angle with vertical  = 30°

So, the angle with the vertical = 60°

horizontal velocity = 3 cos 30° m/s

vertical velocity = 3 sin 30°  m/s  = 2 × 1/2

                          = 1 m/s

For height V² = U² -2aS

                0 = 1² - 2 ×9.8 × S

S = 1/19.6

   = 0.05 m

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Answer:

When a ray of light passes through a glass slab of a certain thickness, the ray gets displaced or shifted from the original path. This is called lateral shift/displacement.

Explanation:

.

The magnitude of the magnetic field at a distance from the axis of the cylinder inside the cylinder by using an amperian loop is B = (mu)i/2πr.

An Amperian loop is one at each point in the loop: B is a constant tangential to the loop and non-zero, or B is normal to the loop, or B vanishes where B is the induced magnetic field. The Amperian loop is chosen so that B is fixed on the loop and in the same direction as ds - a circle whose plane is perpendicular to the wire and centered on the wire. This allows B to be taken "from the integral". An imaginary closed loop around a current-carrying conductor through which Ampere's law is applied to that conductor. In a closed loop, the path integral of the dot product of the magnetic field and the unit vector along the Amperian loop is proportional to the net current enclosed by the loop.

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They have a limited supply in nature, therefore if they are used excessively, they will become exhausted.

Today, we recognise that using fossil fuels has a negative impact on the environment. Fossil fuels produce and utilise local pollutants, and their continued use permanently alters the temperature of our entire world.

Wastes from combustion sources are those that result from carbon pollution (i.e., coal, oil, natural gas). Included in this are all ash and particles taken out of the flue gas.

The fossile fuel is limited in nature. So, it should not waste energy from fossil fuels.

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Answer:

Power generate by elephant = 666.67 W

Explanation:

Given:

Force = 2,000 N

Change in time = 45 Seconds

Distance = 15 meter

Find:

Power generate by elephant ?

Computation:

⇒ Work Done = Force × Distance

⇒ Work Done = 2,000 × 15

⇒ Work Done = 30,000

⇒ Power = Work Done / Time taken

⇒ Power generate by elephant = 30,000 / 45 seconds

⇒ Power generate by elephant = 666.67 W

There are three infrastructure projects wherein thermal expansion & contraction may be a problem are constructing roads, towers, and sidewalks.

The propensity of matter to alter structure, volume, or area in reaction to a temperature change is known as thermal expansion. The average molecular energy of a substance has a monotonic relationship with temperature. Heat makes molecules move more quickly & take up more space, which causes thermal expansion.

The expansion of heated air is the most obvious example. Heat helps the air expand, making it lighter than the air around it. This causes the hot air to be forced (upward), which causes steam and smoke to rise, warm air balloons to float, and so on.

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Answer:

Explanation:

The height of the house is 17.9 meters.

The velocity of a body at the beginning of a period of motion, usually given as a vector quantity. It is usually denoted by u. Initial velocity is the velocity with which a body is set in motion. It is the velocity at which a body starts its motion from a point of rest or at the beginning of a particular time interval. It is a vector quantity, meaning that it has both magnitude and direction. The direction of the initial velocity can be determined by the path of the body.

To solve this problem, we can use the equation for the horizontal range of an object in two-dimensional motion. This equation is R = Vx × T,

where R is the range, Vx is the initial horizontal velocity, and T is the total time of flight.

Given the initial velocity and the range, we can solve for the time of flight.

T = 43.94 m / 24.20 m/s = 1.81 s

We can then use the equation for the vertical displacement of an object in two-dimensional motion to solve for the height of the house. This equation is Y = Vyo × T - (\(1/2_{g}\)) × T2, where Y is the vertical displacement, Vyo is the initial vertical velocity, g is the acceleration due to gravity, and T is the time of flight.

Given the time of flight, we can solve for the height of the house.

Y = 0 m/s ×1.81 s - (1/2)×9.81 m/s2 × (1.81 s)2 = 17.9 m

Therefore, the height of the house is 17.9 meters.

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The work done by the three students is 3,000 J.

The energy transferred in the process is 3,000 J.

W = Fd

The work done by the three students is calculated as follows;

W = 300 x 10

W = 3,000 J

The energy transferred in the process is determined by work energy theorem.

E = W

E = 3,000 J

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Answer:

1. false 2.true 3. true

Explanation:

there was more scientific method and more ways to solve

the hypothesis show the experiment design  

Answer:

Use the formula: F=P=10m and A=Fs. The answer is 11.25 (kg)

Explanation:

A=450(J), s=4(m). Use the formula: A=Fs we will have 450=4F

=> F=450:4= 112.5 (N)

Now use the formula: F=P=10m => 112.5=10m => m=112.5:10=11.25(kg)

Answer:

The will be C, but correct me if i am wrong

Answer:

D is the answer. Force can change the shape and size of an object.