The magnetic field lines outside a bar magnet
a originate from the South poll and end at its
north pole
b) originate from the north pole and end at
its east pole
c) Orginate from the south pole and end at its
west pole
d) origenate from the north pole and ent at its
south pole​

Answer:

False

Explanation:

Newton's third law - For every action there's an equal and opposite reaction, action and reaction act on different objects

Answer:

The velocity when the ball hits the ground is obtained using v2. 2 = v1. 2 + 2 g Dy with v1=0 and Dy=h. Thus solving for v2 yields 17.1 m/s v2 = 2 g h =.

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Answer:

I e jofh ndoj eohe nc n very nic e

Answer:

\(8.5\frac{m}{s}\)

Explanation:

Use Kinematics:

\(v = v_0 + at\)

\(v = 3 + 1.1 * 5\)

\(v = 8.5 \frac{m}{s}\)

Answer:the first one gravitational potential energy turns into kinetic energy

Explanation:

Answer:

A) Gravitational potential energy transforms into kinetic energy.

Explanation:

Edge

The spectrum observed from the Sun (or any star) would exhibit an absorption spectrum. This is because the outer gaseous atmosphere of the star absorbs specific wavelengths of light, resulting in dark absorption lines in the spectrum.

In the cooler, lower-density outer atmosphere, where white light from the star travels, some atoms or molecules in the atmosphere absorb photons with particular energy. In the spectrum, these absorptions show up as black lines at specific wavelengths. The specific set of absorption lines that each element or molecule generates results in a distinctive pattern that can be used to identify the elements that are present in the star's atmosphere.

The absorption spectrum offers insightful data on the chemical make-up and physical characteristics of the star. Astronomers can ascertain the elements present, their abundances, and other characteristics like the temperature, pressure, and velocity of the star's atmosphere by examining the absorption lines.

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Answer:

Feeling's.

Explanation:

Nobody can measure the feeling of a person or love , etc

The brass pendulum will lose or gain approximately 0.0015 seconds per day when the temperature of its surroundings rises from 10°C to 35°C

The time period of a pendulum is given by the formula:

T = 2π√(L/g)

where T is the time period, L is the length of the pendulum, and g is the acceleration due to gravity.

Since both pendulums have the same length and are located in the same gravitational field, their time periods are equal. Therefore, the time gained or lost by the brass pendulum due to the change in temperature can be calculated using the following formula:

ΔT = T × α × ΔT

where ΔT is the change in temperature, α is the coefficient of linear expansion of brass, and T is the original time period.

The coefficient of linear expansion of brass is approximately 19 × 10^-6 /°C.

Substituting the values given in the problem, we get:

ΔT = T × α × ΔT

= (2π√(L/g)) × (19 × 10^-6 /°C) × (35 - 10) °C

= 2π√(L/g) × (0.000019) × (25) °C

= 2π√(L/g) × 0.000475

Assuming a standard pendulum length of 1 meter, the time gained or lost by the brass pendulum can be calculated as follows:

ΔT = 2π√(L/g) × 0.000475

= 2π√(1/9.81) × 0.000475

≈ 0.0015 seconds

Therefore, the brass pendulum will lose or gain approximately 0.0015 seconds per day when the temperature of its surroundings rises from 10°C to 35°C.

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Answer:

593 mAmps

Explanation:

Power = 80 watts =  VI

               80 = 135 I

                 80/135 = I =

Answer:

mass 3.67 kg, density 600 kg/m3) is fitted

with lead (density 1.14 * 10^4 kg/m3) so that it floats in water with

0.900 of its volume submerged. Find the lead mass if the lead is fitted

to the block’s (a) top and (b) bottom.

Answer:

7 is your mode

Explanation:

Because its the number that appears the most .

The displacement is 12.903 km east.

Answer:

The sand absorbed more heat than the soil.

Explanation:

your welcome

Answer:

Given

initial velocity (u) =27.030

Force of gravidity g) =9.8

Rtc maximum height Hmix =?

\( sln \\ \ hmix = u {}^{2} \div 2g \\ 27.030 \div 2 \times 9 \\ \\ hmix = 38.025m\)

Answer:

620

Explanation:

Answer:

100

correct me if I am wrong

Variable 1 is distance and it is Independent.
Variable 2 is charge and it is Independent.
Variable 3 is force and it is Dependent.

a. To increase force, you need to change distance and/or charge.
b. To increase the force, you need to decrease the distance between the charges and/or increase the magnitude of the charges.

a. To decrease force, you need to change distance and/or charge.
b. To decrease the force, you need to increase the distance between the charges and/or decrease the magnitude of the charges.

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Answer:

See below

Explanation:

(180 000 - 10) km  /  36 km/s = 4999.7 =~ 5000 seconds = 83 .3 min

The choose C. 1.33

Tanθ =opposite / adjacent

Tanθ =20/15

Tanθ =1.33

I hope I helped you^_^

Answer:

Explanation:

Given:

To Find:

SolutioN:

We know that,

here,

Substituting the required values:

Density = 11g /63 cm³

Density = 0.174 grams/ cm³

Hence,

\(\large\boxed{\bold{Formula: d=\frac{m}{V}}}\)

Let's solve!

In this question all the values are given so we'll simply have to substitute and solve.

So, we'll have to divide mass by volume.

Substitute the values according to the formula.

\(d= \frac{11}{63}\)

Calculator value:

\(\bold{d= 0.174603174 \: g/ {cm}^{3}}\)

Now, we can round off to 3 significant figures.

The value in ten thousandths place is greater than 5 so we'll have to round up by adding 1 to the thousandths place.

Final answer:

\(\large\boxed{\bold{d= 0.175 \: g/ {cm}^{3}}}\)

After 3 hours, the population of bacteria in the culture is approximately 180,992 bacteria.

let's plug in the values for the initial population (Po), doubling time (d), and the time (t) into the formula \(P_{t}=P_{o}\times 2^{\left( t/d \right)}\)
Initial population (Po) = 64,000 bacteria
Doubling time (d) = 2 hours
Time (t) = 3 hours
Now, we can plug these values into the formula:
\(P_{t}= 64000\times 2^{\left( 3/2 \right)}\)
To simplify the exponent, 3 divided by 2 equals 1.5. Therefore:
Now,
\(2^{\left( 1.5 \right)}\) ≈ 2.828
Now, we multiply the initial population by this value:
\(P_{t}= 64000\times 2^{\left( 1.5 \right)}\) ≈ 180,992
To get the nearest whole number, we can round the population:
Pt ≈ 180,992 (nearest whole number)
After 3 hours, the population of bacteria in the culture is approximately 180,992 bacteria.

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Yes, you can fit a plot of Fe vs r with the equation F = C/\(r^2\), where C is a constant.

Certainly, fitting a plot of force (Fe) versus distance (r) with the equation F = C/\(r^2\) is feasible, especially when dealing with phenomena that obey the inverse square law, such as gravitational or electrostatic forces.

In these cases, C represents a constant that depends on the specific context, like the product of masses or charges involved.

By analyzing experimental data and using curve fitting techniques, you can determine the value of C that best represents the relationship between Fe and r according to the given equation.

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The time taken by a truck to fully stop will be 2 hours. The time taken is found with the help of Newtons second equation of motion.

Distance is a numerical representation of the distance between two objects or locations.

Distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.

The given data Is;

u is the velocity of truck =  55 mph

v is the final velocity of truck = 0 mph

S is the distance travelled by the truck before stop= 302 feet

1 feet = 0.000189394 mile

302 feet = 302 × 0.000189394 mile= 0.057197 mile

From the Newtons's second equation of motion;

\(\rm v^2 = u^2-2as\)

The formula for the acceleration is found as;.

\(a = \frac{v-u}{t}\)

By rearranging the equation, we get;

\(\rm u^2 =2as \\\\ u^2 =2[ \frac{v-u}{t}]s \\\\ u = \sqrt{2[ \frac{v-u}{t}]s} \\\\ 55 = \sqrt{2[ \frac{55-0}{t}]} \\\\ 55= \frac{2 \times 55}{t} \\\\ t= 2 \ hour\)

Hence, the time taken by a truck to fully stop will be 2 hours.

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Answer:

El gasto de gasto es de aproximadamente 0.0273 pies cúbicos por segundo.

Explanation:

El gasto es el flujo volumétrico de gasolina (\(Q\)), medido en pies cúbicos por segundo, que sale de la manguera. Asumiendo que la velocidad de salida es constante, tenemos que el gasto a través de la manguera es:

\(Q = \frac{\pi}{4}\cdot D^{2}\cdot v\) (1)

Donde:

\(D\) - Diámetro de la manguera, medido en pies.

\(v\) - Velocidad medida de salida, medida en pies por segundo.

Si sabemos que \(D = \frac{1}{12}\,ft\) y \(v = 5\,\frac{ft}{s }\), entonces el gasto de gasolina es:

\(Q = \frac{\pi}{4}\cdot \left(\frac{1}{12}\,ft \right)^{2} \cdot \left(5\,\frac{ft}{s} \right)\)

\(Q \approx 0.0273\,\frac{ft^{3}}{s}\)

El gasto de gasto es de aproximadamente 0.0273 pies cúbicos por segundo.

In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Answer:

Therefore, the magnitude of the acceleration of the particle at the instant when its velocity is zero is approximately 18.258 m/s².

Explanation:

To find the magnitude of acceleration at the instant when velocity is zero, we need to differentiate the given velocity equation with respect to time (t) to obtain the acceleration equation.

Given:

Velocity equation: v(t) = 22 - 3.8t^2

Differentiating the velocity equation with respect to time, we get:

a(t) = d(v(t))/dt = -2 * 3.8t

To find the magnitude of acceleration at the instant when velocity is zero, we need to solve for t when v(t) = 0.

0 = 22 - 3.8t^2

3.8t^2 = 22

t^2 = 22/3.8

t^2 ≈ 5.789

Taking the square root of both sides, we find:

t ≈ √(5.789)

t ≈ 2.403

Now we can substitute this value of t into the acceleration equation to find the magnitude of acceleration at that instant:

a(t) = -2 * 3.8 * 2.403

a(t) ≈ -18.258

Therefore, the magnitude of the acceleration of the particle at the instant when its velocity is zero is approximately 18.258 m/s².

The diameter of the piston the student is standing on is 0.22 times greater than that of the piston the elephant is standing on.

Given parameters:

Mass of the student: m = 70 kg.

Mass of the elephant: M = 1200 kg.

Let the diameter of the piston the student is standing on is d.

and  the diameter of the piston the elephant is standing on is D.

Using Pascal's law,

Weight of the student ÷ area  of the piston the student is standing on = Weight of the elephant ÷ area  of the piston the elephant is standing on.

⇒ 70 kg × g / π d² = 1200 kg × g / π D²

⇒ 1400 d² = 70 D²

⇒ d= 0.22D.

Hence,  the diameter of the piston the student is standing on is 0.22 times greater than that of the piston the elephant is standing on.

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According to the given information temperature and velocity  of the following is a vector quantity

A vector quantity is one that just has magnitude, whereas a vector quantity has both orientation and magnitude. Given that it is direction-independent at a given position, heat is a scalar number.

Vectors include gravity and displacement. They possess both a value and a direction. The fact that gravity and displacement are pointing in the same direction in this instance allows us to derive a scalar energy from them (in this example, their direction are down and down, respectively).

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Answer:

c) Liquid

Explanation:

Liquid takes the shape of its container and has a specific volume. On the other hand, solid and gas don't.

A. There is zero net force acting on the plane.

Answer:

must double the force, with the same masses you get twice the acceleration.

Explanation:

Newton's second law establishes a relationship between force and acceleration where the constant of proportionality is mass

        F = m a

To prove these relationships you must double the force, with the same masses you get twice the acceleration.

     2F = m 2a

The downside is that if you double the mass, the acceleration stays the same.

    2F = 2m   a