A housekeeper is cleaning the kitchen and decides to to use a ladder to reach a top shelf. As he/she is cleaning he/she is started by a mouse and falls off the ladder to the floor. As the he/she is falling, what is true about the magnitude of the Earth's gravitational force exerted on the housekeeper compared to the magnitude of gravitational force that the housekeeper exerts on the Earth?

Answer:

Magnetized objects always have both a north and a south pole, never just one or the other. Similar to electric charges, opposite poles attract, and like poles repel. The stronger the magnets and the closer together they are, the stronger the magnetic force between them.

Explanation:

(Source: Go ogle)

Answer: Magnetism is a force that acts at a distance and is caused by a magnetic field. The magnetic force strongly attracts an opposite pole of another magnet and repels a like pole. The magnetic field is both similar and different than an electric field. hope this helps can u give me brainliest

Explanation:

Answer:

Explanation: 1: The gas particles move in a straight line before colliding with something, usually the wall of their containers.

2: The is no attraction or repulsion between the gas particles.

Answer: The particles of a solid are [generally] closest together while those of a gas are farthest apart

Explanation:

There are two major types of intake manifold. In general, A long intake manifold produces high torque at lower engine rpm because of the increased time between the air pulses.

This Heating system on vehicles are often with emission controls, air cleaners use a thermostatic valve to control how much hot air enters the air cleaner.

Conclusively there are two forms of intake manifold. They are the long and short intake manifold.

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Answer:

T₂ = 1937.68 N

Explanation:

First, we will calculate the weight of the object:

\(W = mg = (478\ kg)(9.81\ m/s^2)\\W = 4689.18\ N\)

Now, we will calculate the resultant tension in the ropes. Since the ropes are perpendicular. Therefore,

\(T = \sqrt{T_1^2+T_2^2}\\\)

where,

T = Resultant Tension

T₁ = Tension in rope 1

T₂ = Tension in rope 2

According to the given condition tension in the first rope is 2.2 times the tension in the second rope:

T₁ = 2.2 T₂

Therefore

\(T = \sqrt{(2.2T_2)^2 + T_2^2}\\\\T = 2.42T_2\)

Now, the weight of the object must be equal to the resultant tension for equilibrium:

\(T = W\\2.42T_2 = 4689.18\ N\\\\\)

T₂ = 1937.68 N

Accident: Get burned

Prevention: turn off the burner.

In order to determine the number of particles of methane, use the following expression:

number of particles = (mass /molar mass ) x Avogadro's number

in this case, you have:

molar mass = 16.03 grams/mole

mass = 120 grams

Avogadro's number = 6.02*10²³ particles/mol

replace the previos values of the parameters into the formula for the number of particles:

number of particles=(120 grams/ 16.03 grams/ mol)x(6.02*10²³particles/mol)

= (7.46 mol) x (6.02*10²³ particles/mol)

= 4.50*10²⁴ particles

Hence, the number of particles of methane, in 120 grams, is 4.50*10²⁴

Answer:

The equivalent resistance of the combination is R/100

Explanation:

Parallel Connection of Resistances

If resistances R1, R2, R3,...., Rn are connected in parallel, the equivalent resistance is calculated as follows:

\(\displaystyle \frac{1}{R_e}=\frac{1}{R_1}+\frac{1}{R_2}+\frac{1}{R_3}+...+\frac{1}{R_n}\)

The electric resistance of a wire is directly proportional to its length. If a wire of resistance R is cut into 10 equal parts, then each part has a resistance of R/10.

It's known the 10 parts or resistance R/10 were connected in parallel, thus the electric resistance is:

\(\displaystyle \frac{1}{R_e}=\frac{1}{R/10}+\frac{1}{R/10}+\frac{1}{R/10}+...+\frac{1}{R/10}\)

Note the sum consists of 10 equal terms. Operating on each term:

\(\displaystyle \frac{1}{R_e}=\frac{10}{R}+\frac{10}{R}+\frac{10}{R}+...+\frac{10}{R}\)

The sum of 10 identical fractions yields 10 times each fraction:

\(\displaystyle \frac{1}{R_e}=10\frac{10}{R}=\frac{100}{R}\)

Solving for Re needs to take the reciprocal of both sides of the equation:

\(R_e=R/100\)

The equivalent resistance of the combination is R/100

The phrase "like dissolves like" can be described as the compounds which have similar nature dissolve in each other that is polar dissolves polar and non-polar dissolves non-polar molecules.

Polarity is the separation of electric charge which is leading to a molecule or the chemical groups which are having an electric dipole moment, with a negatively charged end and a positively charged end as well. Polar molecules are the molecules which must contain one or more polar bonds which occur due to a difference in the electronegativities between the bonded atoms of the molecule.

A simple way to predict the compounds which will dissolve in other compounds is the phrase of the compound such as "like dissolves like". This means that the polar compounds dissolve in polar compounds, and the nonpolar compounds dissolve in nonpolar compounds, however, the polar and nonpolar molecules do not dissolve in each other.

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The bike and rider would need to be traveling at a speed of 1.07 m/s to have the same momentum as the car traveling at 1.0 m/s.

The momentum equation is p = mv

where p is the momentum, m is the mass, and v is the velocity. Let's first find the momentum of the car:

P = mv = 1500 kg * 1.0 m/s

= 1500 kg⋅m/s

We need to find the velocity of the bike and rider to match this momentum. We know that the total mass of the bike and rider is 100 kg.

So, we have:P = mv1500 kg⋅m/s

= (100 kg + m)r

where r is the velocity of the bike and rider, and m is their combined mass. Rearranging this equation, we get:

m = (P - 100r)/r

Now, we can substitute the value of P into this equation and solve for r.

1500 kg⋅m/s = (P - 100r)/r1500 kg⋅m/s

= (1500 kg⋅m/s - 100r)/r1500 kg⋅m/s * r

= 1500 kg⋅m/s - 100r1500 kg⋅m

= 1500 kg⋅m/s - 100r/rr

= (1500 kg⋅m/s) / (1500 kg - 100 kg)r

= 1500/1400r

= 1.07 m/s

Therefore the speed is 1.07 m/s

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Answer:

Its b

Explanation:

I just did this question

The question that can be answered by scientific investigation is that can be answered by gathering  data during an experiment. Thus option B is correct.

Investigation on a natural phenomenon or process to solve a scientific question or to solve a social or environmental issue by well designed experiments based on reasonable observations is called scientific investigation.

A scientific investigation includes, variables, hypothesis , observations, research  methodology. Scientific experiments have to well designed to address all the outcomes of the observations and  must be feasible to prove whether the hypothesis is true or not.

Scientific investigations cannot be conducted based on only opinions from scientists or scientific record. The data have to be collected through experiments conducted by well designed research methodology.

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\(▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪\)

The magnitude of a vector is its length. We can represent greater magnitude by drawing a longer arrow.

Answer:

\(F_r \approx 978.3N\)

\(\theta =44 \textdegree\)

Explanation:

From the question we are told that

Connie pulls with a force of \(F_c=200 N\)

At an angle \(\theta _c=20 \textdegree\)

Randolph pulls with a force of \(F_R=800 N\)

At an angle \(\theta _R=50 \textdegree\)

Generally the horizontal axis  can mathematically be represented as

\(f_x=f_ccos\theta _c+F_Rcos\theta _R\)

\(f_x=200*cos20+800*cos50\)

\(f_x=702.2N\)

Generally the vertical axis  can mathematically be represented as

\(f_y=f_csin\theta _c+F_Rsin\theta _R\)

\(f_y=200*sin20+800*sin50\)

\(f_y=681.24N\)

Generally the resultant force \(F_r\) is mathematically  given by

\(F_r=\sqrt{f_x^2+f_y^2}\)

\(F_r=\sqrt{702.1686119^2+681.2395832^2}\)

\(F_r=978.3230731N\)

\(F_r \approx 978.3N\)

Generally the Direction \(\theta\) of force is mathematically given by

\(\theta =tan^-^1(\frac{f_c}{f_y})\)

\(\theta =tan^-^1(\frac{681.23}{702.16})\)

\(\theta =44 \textdegree\)

Work is performed by him is zero.

Work in physics is the energy that is transferred to or from an item when a force is applied along a displacement. In its simplest form, it equals the product of the force's magnitude and the distance traveled for a constant force directed in the direction of motion.

Given in the question a force of 1200 N crate but it doesn't move.

Work = force x distance. In units, Joules = Newtons x meters.

So: Work = 1200 Newtons x 0 meters

Work  = 0 joules.

Work is performed by him is zero.

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Answer:

Force = 3 Newton

Explanation:

Given the following data;

Mass = 200 g to kilograms = 200/1000 = 0.2 kg

Acceleration = 15 m/s²

To find the force;

Force = mass * acceleration

Force = 0.2 * 15

Force = 3 Newton

Answer:

Explanation:

The autonomic nervous system has two components, the sympathetic nervous system and the parasympathetic nervous system. The sympathetic nervous system functions like a gas pedal in a car. It triggers the fight-or-flight response, providing the body with a burst of energy so that it can respond to perceived dangers.

Answer:

Explanation:

In a battery charger (for an auto).

As a replacement for any bulb in an auto.

As a lamp in an emergency exit where the power must be shut off.

As a light that illuminates the back of a truck, turned on when loading the truck.

Answer:

A theory

Explanation:

No, the person who answered above is incorrect. I just took the assessment and I can guarantee you the answer is "a theory".

-Lexi

The power is generated by the machine that lifts the 50 kg box a

distance of 15 m in 8 seconds is 918.75 W (2nd option)

We'll begin by obtaining the work done by the machine in lifting the box. Details below:

Wd = mgh

Wd = 50 × 9.8 × 15

Wd = 7350 J

Finally, we shall determine the power generated. Details below:

P = Wd / t

P = 7350 / 8

P = 918.75 W

Thus, the power generated is 918.75 W (2nd option)

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1. The limit of proportionality for the extension-load graph of a spring is the maximum point on the graph up to which Hooke's Law is obeyed.

(2a) The total length of the stretched spring when a stretching force of 2 N is applied is approximately 100.1112 mm.

(3) Spring A is stronger because it has greater spring constant.

The extension of the spring can be calculated using the following formula:

Extension = Total length of the stretched spring - Unstretched length of the spring

Extension = 118 mm - 100 mm = 18 mm

To calculate the total length of the spring when a stretching force of 2 N is applied, we first need to determine the spring constant (k) using the given information.

k = (Force applied) / (Extension)

k = 1 N / 18 mm

k = 0.0556 N/mm

Now, we can use the following formula to calculate the total length of the stretched spring:

Total length of the stretched spring = Unstretched length of the spring + Extension due to the applied force

Total length of the stretched spring = 100 mm + (k x Force applied)

Total length of the stretched spring = 100 mm + (0.0556 N/mm x 2 N)

Total length of the stretched spring = 100 mm + 0.1112 mm

Total length of the stretched spring = 100.1112 mm

To determine which spring is stronger, we need to compare their spring constants. The spring constant (k) is a measure of the stiffness of a spring and is defined as the force required to produce a unit extension in the spring. It is usually measured in units of N/m or N/mm.

For spring A, the extension is 15 mm/N, which means that the spring constant is:

k(A) = 1 / 15 N/mm = 0.067 N/mm

For spring B, the extension is 20 mm/N, which means that the spring constant is:

k(B) = 1 / 20 N/mm = 0.05 N/mm

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Answer:

Toothpaste

Because it is viscous

Conservation of momentum

Pix = Pfx

m1= Archer's mass = 102.3 kg

v1 = Archer's velocity =

m2 = arrow's mass = 99g = 0.099 kg

v2f= arrow's velocity = 104.2 m/s

0= m1 v1 + m2 v2

V1= -( m2/m1) v2

V1 = - (0.099 kg /102.3 kg) *104.2 m/s

V1= - 0.1008 m/s

The final temperature of the soda-water mixture is approximately 34.9°C.

The task is to determine the final temperature of the soda-water mixture after all of the ice has melted. The solution is calculating the amount of heat received by the ice, the amount of heat lost by the soda, and the amount of heat required to melt the ice.

First, we must convert the soda and ice masses to kilogrammes:

mI = 0.18 kg mS = 12 oz / 35.273 oz/kg = 0.34 kilogramme

The amount of heat lost by the soda as it cools from its initial temperature of 13.5°C to the final temperature can then be calculated:

Qlost = 0.34 kg * 4186 J/(kg°C) * (13.5°C)

Qlost = 0.34 kg * 4186 J/(kg°C) * (13.5°C )

Similarly, we can calculate how much heat the ice gains when it warms from -15°C to 0°C and finally melts at 0°C:

Qgain = mI*cI*T + mI*Lf

T = (0°C - (-15°C)) = 15°C

Because the heat lost by the soda is equal to the heat gained by the ice, we can set Qlost = Qgain and solve for:

0.34 kg * 4186 J/kg°C * (13.5°C - F

= 0.18 kg * 2090 J/kg°C 15°C + 0.18 kg

= 334000 J/kg

When we simplify this equation, we get:

= 34.9°C = 15432 - 1423.88

= 10530 + 60012 49709

= 1423.88

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The height of the rope (y) can be determined using the equation y = (mg)/k, where m is the mass of the rope, g is the acceleration due to gravity, and k is the spring constant.

The equation that gives the height (y) of the rope as a function of the position (x) along the spring depends on the specific system or setup being considered. In general, we can use Hooke's Law to describe the relationship between the displacement of the spring and the force applied to it.

Hooke's Law states that the force (F) exerted by a spring is proportional to its displacement (x). Mathematically, this can be written as:

F = -kx

Where k is the spring constant, which represents the stiffness of the spring.

To relate the force to the height of the rope, we need to consider the weight of the rope. The weight can be expressed as the product of the mass of the rope (m) and the acceleration due to gravity (g):

W = mg

Since the force exerted by the spring opposes the weight, we can write:

F = -W = -mg

Equating the force from Hooke's Law with the weight, we get:

-kx = -mg

Now, we can rearrange the equation to solve for x:

x = (mg)/k

Since the height of the rope (y) is related to the displacement (x), we can say:

y = x

Therefore, the equation that gives the height of the rope as a function of the position along the spring is:

y = (mg)/k

The height of the rope (y) can be determined using the equation y = (mg)/k, where m is the mass of the rope, g is the acceleration due to gravity, and k is the spring constant. This equation describes the relationship between the position (x) along the spring and the height of the rope.

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Answer:

sublimation and evaporation

Explanation:

evaporation is from liquid to gas and sublimation is solid to liquid, as water vapor is a gas both of these methods could be used

Answer:

x-component = 50√3

y-component = 50

Explanation:

Two-dimensional vectors consist of two components which are x-component and y-component. The vector equation can be written as:

\( \displaystyle{ \vec v = x \hat i + y \hat j}\)

Each components also can be written in trigonometric form:

\( \displaystyle{x = | \vec v| \cos \theta} \\ \displaystyle{y = | \vec v| \sin \theta}\)

The absolute of vector is called magnitude of vector which is already given in the problem (100 m). The measurement or theta is also given as well, therefore:

\( \displaystyle{x = 100 \cos 30 \degree } \\ \displaystyle{y = 100\sin 30 \degree}\)

Then evaluate, we have to know that sin30° is 1/2 and cos30° is √3/2.

\( \displaystyle{x = 100 \times \dfrac{ \sqrt{3}}{2} } \\ \displaystyle{y = 100 \times \dfrac{1}{2}}\)

Therefore, the components are:

\( \displaystyle{x = 50 \sqrt{3} } \\ \displaystyle{y = 50}\)

Answer:

I need a picture dude or something more specific than the other kids were white gold and blue