what would happen if measurements such as mass,length,volume,or temperature weren't standardized and everyone made up their own units

The plane travels a distance of 325 miles if the airplane travels for 2.5 hours at an average speed of 130 miles per hour. Using the distance formula (d = rt), we can calculate the distance.

To find the distance traveled by the airplane, we can use the distance formula, which is represented as d = rt. In this formula, "d" represents the distance, "r" represents the rate or speed at which the object is traveling, and "t" represents the time taken for the travel.

Given that the airplane travels for 2.5 hours at an average rate of 130 miles per hour, we can substitute these values into the formula. The rate of the airplane is 130 miles per hour, and the time taken is 2.5 hours.

Using the formula, we can calculate the distance traveled as follows:

d = rt

d = 130 mph × 2.5 hours

Multiplying the rate (130 mph) by the time (2.5 hours) gives us:

d = 325 miles

Therefore, the airplane travels a distance of 325 miles during the 2.5 hours of travel at an average rate of 130 miles per hour.

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Answer:

84 joules

Explanation:

potential energy = mgh

5.24×1.63×9.8

= 84 joules

The answer is B.  \(1.9 × 10^-4 J\)when A charge of 24 µC is at a location where the electric potential is 8.0 V.

Electric potential, also known as voltage, is a scalar physical quantity that describes the amount of electric potential energy per unit charge present at a point in space or at a point in an electric circuit. It is measured in volts (V).

The electric potential energy of a charge q in an electric potential V is given by the equation:

U = qV

where U is the electric potential energy in joules (J), q is the charge in coulombs (C), and V is the electric potential in volts (V).

Using this equation and the given values, we can calculate the electric potential energy of the charge:

\(U = (24 × 10^-6 C) × (8.0 V) = 1.9 × 10^-4 J\)

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Answer:

A

Explanation:

You did not list the options. However, knowing the possible options from having seen the material myself - I can infer that the answer option is A. I apologize sincerely if this is wrong.

The bullet takes 0.0025 seconds to pass through the wooden plank of 5 cm thickness when it is traveling horizontally with an initial speed of 30 m/s and a final speed of 10 m/s.

The time taken by the bullet to pass through the wooden plank can be determined using the equation of motion for constant acceleration.

Given:
Initial speed (u) = 30 m/s

Final speed (v) = 10 m/s

Distance (s) = 5 cm = 0.05 m

To find the time taken (t), we need to calculate the acceleration (a) first. We can use the equation:

v² = u² + 2as

Rearranging the equation, we have:

a = (v² - u²) / (2s)

Substituting the given values:

a = (10² - 30²) / (2 * 0.05)

Simplifying the expression:

a = (-800) / (0.1)

a = -8000 m/s²

The negative sign indicates that the acceleration is in the opposite direction of the initial velocity.

Next, we can use the equation of motion:

v = u + at

Substituting the values:

10 = 30 + (-8000) * t

Simplifying the equation:

-8000t = -20

Dividing by -8000:

t = 20 / 8000
t = 0.0025 s

Therefore, the time taken by the bullet to pass through the wooden plank of 5 cm thickness is 0.0025 seconds.


To find the time taken by the bullet to pass through the wooden plank, we need to calculate the acceleration first using the equation of motion.

By rearranging the equation and substituting the given values, we can find the acceleration.

Then, using the equation of motion again, we can solve for time.

The negative sign in the acceleration indicates that it is in the opposite direction of the initial velocity.

The resulting time is 0.0025 seconds.

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Answer:

kkolkkkkkkkkkkkkkkkkkkissxfd

Based on the data provided, the distance travelled is 37.68 m.

First we calculate the angular velocity:

angle turned = 180 degrees = πradians

angular velocity =  πradians/5

angular velocity = 0.628 rad/s

Linear speed = radius * angular velocity

Linear speed = 12 * 0.628

Linear speed = 7.536 m/s

Then:

Distance travelled = 7.536 * 5

Distance travelled = 37.68 m

Therefore, the distance travelled is 37.68 m.

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The lighter block will also accelerate to the right with an acceleration of -0.82 m/s².

(a) μ = 0

The heavier block will accelerate to the right with an acceleration of:

a = F / m = k x / m = (3.70 N/m) (0.0864 m) / 0.261 kg = 1.22 m/s²

The lighter block will also accelerate to the right with an acceleration of 1.22 m/s².

(b) μ = 0.110

The heavier block will accelerate to the right with an acceleration of:

a = F - μk / m = k x / m - μk / m = (3.70 N/m) (0.0864 m) / 0.261 kg - (0.110)(0.261 kg)(9.80 m/s²) = 0.68 m/s²

The lighter block will not accelerate because the force of friction is greater than the force of the spring.

(c) μ = 0.480

The heavier block will accelerate to the right with an acceleration of:

a = F - μk / m = k x / m - μk / m = (3.70 N/m)(0.0864 m) / 0.261 kg - (0.480)(0.261 kg) (9.80 m/s²) = -0.82 m/s²

Therefore, the lighter block will also accelerate to the right with an acceleration of -0.82 m/s².

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Answer: Contant.

Explanation:

You are given that When the boat moves the force of resistance is proportional to the velocity of the boat. This means that the total momentum on the boat is equal to zero. Then the boat remains at a certain position.

When a person walks from the stern to the bow of the boat, the boat will tend to move in the opposite direction with equal magnitude of momentum. The magnitude of forces will thereby cancel out.

The person will be seen moving while the boat moves in the opposite direction.

If no external force is acting on the boat, the sum of the momentum of the person and the boat will be equal to zero. And the boat will remain at rest.

The position of the boat long time after the person stopped moving will therefore remain the same.

Answer:

C

Explanation:

Answer:

a

Explanation:

a p ex

The potential energy of the particles increases as intermolecular forces are overcome.

When a substance such as ice melts, its temperature increases. Water molecules become less orderly and they spread apart.

"Potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors." An object can store energy as the result of its position. For example, the heavy ball of a demolition machine is storing energy when it is held at an elevated position. This stored energy of position is referred to as potential energy. Similarly, a drawn bow is able to store energy as the result of its position.

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The centers of the two spherical objects that are apart is 4.55 x 10³m.

Two spherical objects have masses of 3.1 x 10⁵ kg and 6.5 x 10³ kg. The gravitational attraction between them is 65N. The centers of the two spherical objects that are apart is 4.55 x 10³m. The gravitational force between two objects with masses m1 and m2 that are separated by a distance r is given by the equation:

F = \(\frac{G m1 m2}{r^{2} }\)

where G is the gravitational constant, m1 and m2 are the masses of the objects in kilograms, and r is the distance between their centers in meters. In this problem, we are given the gravitational force between the two objects, F, and the masses of the objects, m1 and m2. We can use these values to solve for the distance r between the centers of the objects. Gravitational force is the force that attracts two bodies in the universe. it is applicable everywhere. it is applicable on every body whether it is small or big, it applies everywhere.

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4.55 x \(10^9\) m are distance between their centre.

The gravitational force between two objects with masses m1 and m2 that are separated by a distance r is given by the equation:

F =  \(\frac{Gm_1m_2}{r^2}\)  where G is the gravitational constant, m1 and m2 are the masses of the objects in kilograms, and r is the distance between their centers in meters.

In this problem, we are given the gravitational force between the two objects, F, and the masses of the objects, m1 and m2.

We can use these values to solve for the distance r between the centers of the objects.

Substituting the given values into the equation above, we get:

65 = G*(3.1 x 10^5 kg)(6.5 x 10^3 kg)/\(r^2\)

Solving for r, we find that the distance between the centers of the objects is approximately:

r = sqrt(G(3.1 x 10^5 kg)(6.5 x 10^3 kg)/65)

=> sqrt((6.674 x 10^11 )(3.1 x 10^5 kg)(6.5 x 10^3 kg)/65)

= 4.55 x \(10^9\) m

Thus, the distance between the centers of the two objects is approximately 4.55 x \(10^9\) m .

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The urban legend of the car thief is an example of A Cautionary Tale.

A cautionary tale makes reference to a given tale aimed at the warning the person of some type of danger, which is generally used to alert about a given behavior and may be very useful to modify a behavior pattern in children.

Therefore, with this data, we can see that A cautionary tale is based on warning and can help to modify certain behavior in c children depending on the ability to create conscious.

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A frictionless piston-cylinder device contains 7.5 liters of saturated liquid water at 275 kPa. An electric resistance is turned on until 3050 kJ of energy is transferred to the water.

i) The mass of water can be determined by using the specific volume of saturated liquid water at the given pressure and volume. By using the specific volume data from the steam tables, the mass of water is calculated to be 6.66 kg.

ii) To find the final enthalpy of water, we need to consider the energy added to the water. The change in enthalpy can be calculated using the energy equation Q = m(h2 - h1), where Q is the energy transferred, m is the mass of water, and h1 and h2 are the initial and final enthalpies, respectively. Rearranging the equation, we find that the final enthalpy of water is 454.55 kJ/kg.

iii) The final state and the quality (x) of water can be determined by using the final enthalpy value. The final enthalpy falls within the region of superheated vapor, indicating that the water has completely evaporated. Therefore, the final state is a superheated vapor and the quality is 1 (x = 1).

iv) The change in entropy of water can be obtained by using the entropy equation ΔS = m(s2 - s1), where ΔS is the change in entropy, m is the mass of water, and s1 and s2 are the initial and final entropies, respectively. The change in entropy is found to be 10.13 kJ/kg.

v) The process described is irreversible because the water started as a saturated liquid and ended up as a superheated vapor, indicating that irreversibilities such as heat transfer across a finite temperature difference and friction have occurred. Therefore, the process is irreversible.

On a P-v diagram, the process can be represented as a vertical line from the initial saturated liquid state to the final superheated vapor state, crossing the saturation lines.

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Answer:

1. is held

2. was

3. be cancelled

4. has been moved

5. is being filmed

Explanation:

If you read them out, you can find out which ones flow the best! Hope this helps!

(a) King kong will fall straight from the top of the empire state building in 8.81 s.

(b) The velocity of king kong before landing is 86.3 m/s.

What is the acceleration due to gravity?

The longer an object is in free fall, the faster it descends toward the ground due to gravity. In actuality, an object's velocity rises by 9.8 m/\(s^{2}\), so it reaches 9.8 m/s by the time it begins to fall.

Time taken for king kong to land on the ground from the Empire  state building is

\($$t=\sqrt{\frac{2 h}{g}}\\=\sqrt{\frac{2(380 \mathrm{~m})}{9.8 \mathrm{~m} / \mathrm{s}^2}}\)

= 8.81 s

(b)

The velocity of the king kong when it touches the ground is

\($$v=\sqrt{2 g h}\\=\sqrt{2\left(9.8 \mathrm{~m} / \mathrm{s}^2\right)(380 \mathrm{~m})}\)

=86.3 m/s

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To explain the tangent plane to the surface, `z = 53 − x² − 2y²` at the point `(3, 2, 6)`, let us first determine the partial derivatives of `z` with respect to `x` and `y`.

Partial derivative of `z` with respect to `x`, `∂z/∂x = -2x`Partial derivative of `z` with respect to `y`, `∂z/∂y = -4y`Now, let's find the gradient vector `grad z` at `(3, 2, 6)` and the value of `z` at `(3, 2)`.gradient vector `grad z = (-2x, -4y, 1)`gradient vector `grad z = (-6, -8, 1)` at `(3, 2, 6)`.Value of `z` at `(3, 2)` is given by `z = 53 - 3² - 2(2)² = 39`.

Therefore, the equation of the tangent plane to the surface `

z = 53 − x² − 2y²` at `(3, 2, 6)` is:

`z - 6 = -6(x - 3) - 8(y - 2)`

which can be written as:`6x + 8y + z = 50`Thus, the equation of the tangent plane to the surface `z = 53 − x² − 2y²` at the point `(3, 2, 6)` is `6x + 8y + z = 50`.

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Answer:

Thrust / Lift / Gravity

Explanation:

He must create enough force of thrust to jump for a short time and gravity pulls him back down almost immediately.

Answer:

gravity and resistance, the man is moving so the force is unbalanced

Explanation:

Answer:

False.

Explanation:

Mass is the amount of matter in a given object. Weight is the force acting on an object due to gravity.

Answer:

False

Explanation:

Weight is the act of pulling an object towards the earth surface so weight is a force to amount

Answer: Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Explanation:

Answer:

Percentage of solution= 5

Mass of solution= 250g

% of solution=

Mass of solution

Mass of solute

×100

∴ Mass of solute=

100

5×250

=12.5g

Explanation:

hope it's help

Explanation:

According to the question ,

And we need to find out ,

As we know that Force is the rate of change of momentum ,

\(\sf\red{\longrightarrow}\) F = ∆p/t

\(\sf\red{\longrightarrow}\) F = mv - mu/t

\(\sf\red{\longrightarrow}\) F = m(v - u)/t

\(\sf\red{\longrightarrow}\) F = 920(9.5-16)/1 N

\(\sf\red{\longrightarrow}\) F = 920 * -6.5 N

\(\sf\red{\longrightarrow}\) Force = -5980N

The direction of the force will be opposite to the direction of velocity of the car .

Using the 3rd equation of motion , we have ,

\(\sf\red{\longrightarrow}\) 2as = v² - u²

\(\sf\red{\longrightarrow}\) 2 (v-u)/t *s =(v+u)(v-u)

\(\sf\red{\longrightarrow}\) 2(t)(s) = v + u

\(\sf\red{\longrightarrow}\) 2 * 1 * s = 16 + 9.5

\(\sf\red{\longrightarrow}\) s = 25.5/2 m

\(\sf\red{\longrightarrow}\) s = 12.75 m

Answer:

Michael wanted to see what kitchen cleaner worked best for cleaning his counters. He used Lysol, Clorox, Pine-Sol, and water. For each cleaner, he used 5 milliliters of grape juice on the counter, sprayed the cleaner, and wiped it with one paper towel. Which of the following would be a constant?

answer choices:

-Lysol

-Cleaning products

-5 milliliters of grape juice

-Cleanest countertop recorded

5 milliliters of grape juice will be constant.

Explanation:

The different cleaning agents have different cleaning capabilities and some will require more of its quantity than others to clean the counter.

Secondly, only the grape juice has a measured amount of 5 milliliters

the power output while pushing a 10.0-kg block of steel across a steel table at a steady speed of 2.00 m/s for 3.00 s with a force of 60.0 N is 120.0 W.

The power output while pushing a 10.0-kg block of steel across a steel table at a steady speed of 2.00 m/s for 3.00 s with a force of 60.0 N can be found using the formula:

P = W / t

where P is power, W is work done and t is time.

Here,

Work done (W) = force × distance moved in the direction of force= force × speed × time= 60.0 N × 2.00 m/s × 3.00 s= 360.0 J

Therefore, Power output = P = W / t= 360.0 J / 3.00 s= 120.0 W

Therefore,

the power output while pushing a 10.0-kg block of steel across a steel table at a steady speed of 2.00 m/s for 3.00 s with a force of 60.0 N is 120.0 W.

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Answer:

10.4 m/s²

Explanation:

use the formula:  V² = Vo² - 2aΔx

Plug in the known values then solve for a.  Vo = 0 because the car starts from rest.

(25 m/s)² = 0 + 2a(30m)

a = (625 m²/s²)/(2)(30m) = 10.4 m/s²

Answer:

La velocidad del sistema bala-bloque es 5 metros por segundo.

Explanation:

El enunciado tiene una omisión gramatical. La forma correcta es la siguiente:

Una bala de 0.8 kilogramos de masa se mueve horizontalmente con una velocidad de 30 metros por segundo y se introduce en un bloque de 4 kilogramos, inicialmente en reposo. ¿Cuál es la velocidad de la bala y el bloque después del impacto?

Esta situación es un caso clásico de colisión enteramente inelástica, en donde el sistema bala-bloque no tiene influencia de fuerzas externas, entonces la situación queda descrita por la siguiente ecuación:

\(m_{b}\cdot v_{b,o} = (m_{b}+m_{B})\cdot v\) (1)

Donde:

\(m_{b}\) - Masa de la bala, en kilogramos.

\(v_{b,o}\) - Velocidad inicial de la bala, en metros por segundo.

\(m_{B}\) - Masa del bloque, en kilogramos.

\(v\) - Velocidad del sistema bala-bloque, en metros por segundo.

Si sabemos que \(v_{b,o} = 30\,\frac{m}{s}\), \(m_{b} = 0.8\,kg\) y \(m_{B} = 4\,kg\), entonces la velocidad del sistema masa-bloque es:

\(v = \frac{m_{b}}{m_{b}+m_{B}}\cdot v_{b,o}\)

\(v = 5\,\frac{m}{s}\)

La velocidad del sistema bala-bloque es 5 metros por segundo.

When a ferromagnetic material is placed in an electromagnetic coil and a magnetic field is applied, the magnetic induction (B) is increased.

Therefore, the correct answer is:

(a) There is a large increase in the magnetic induction (B)

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The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

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