How far would a horse that rides at 5.2 m/s travel in 5.4 minutes?

Answer:

Option B is correct

Explanation:

Motion is described with respect to frame of reference.

A frame of reference refers to a set of coordinates that helps to find positions and velocities of objects in the frame.

The laws of motion might be more complex than required if the coordinates are not chosen properly.

Therefore,

Option B is correct

Answer:

Consider an n-type silicon semiconductor at T = 300°K in which Nd = 1016 cm-3 and Na = 0. The intrinsic carrier concentration is assumed to be ni = 1.5 x 1010 cm-3. - Comment Nd >> ni, so that the thermal-equilibrium majority carrier electron concentration is essentially equal to the donor impurity concentration.

Explanation:

The gauge pressure at point 2 is 98100 Pa or 9.81 x\(10^4\) Pa, which is equivalent to 6.97 x\(10^4\) Pa when rounded to two significant figures.

Step 1: Identification of the given data:

- Elevation at point 1 (h1) = 10.0 m

- Elevation at points 2 and 3 (h2 = h3) = 2.00 m

- Cross-sectional area at point 2 (A2) = 0.0480 \(m^2\)

- Cross-sectional area at point 3 (A3) = 0.0160 \(m^2\)

Step 2: Determination of the discharge rate:

As mentioned earlier, the discharge rate (Q) is given by Q = A2 * v2, and since the velocity at point 2 (v2) is negligible, the discharge rate will be 0.

Therefore, the discharge rate is 0 cubic meters per second.

Step 3: Determination of the gauge pressure at point 2:

To find the gauge pressure at point 2, we'll use Bernoulli's equation:

P1 + (1/2)ρ\(v1^2\) + ρgh1 = P2 + (1/2)ρ\(v2^2\) + ρgh2

Since the velocity at point 2 (v2) is negligible, the term (1/2)ρ\(v2^2\) can be ignored.

The equation simplifies to:

Patm + ρgh1 = P2 + ρgh2

We want to find the gauge pressure at point 2, so we'll subtract the atmospheric pressure (Patm) from P2:

\(P_g_a_u_g_e\) = P2 - Patm

Now let's substitute the given values into the equation:

\(P_g_a_u_g_e\) = (Patm + ρgh1) - Patm

\(P_g_a_u_g_e\) = ρgh1

Plugging in the values:

\(P_g_a_u_g_e\) = (1000 kg/m^3) * (9.81 \(m/s^2\)) * (10.0 m)

\(P_g_a_u_g_e\) = 98100 Pa

For more such information on: pressure

https://brainly.com/question/28012687

#SPJ8

Answer:

30 m

__________________________________________________________

Explanation:

We are given:

Initial velocity (u) = 10 m/s

Final velocity (v) = 20 m/s

Time interval (t) = 2 seconds

Distance travelled by the bus (s) = s meters

Solving for the distance travelled:

Solving for the acceleration:

v = u + at                                                            [first equation of motion]

20 = 10 + a(2)                                                    [replacing the given values]

2a = 10                                                               [subtracting 10 from both sides]

a = 5 m/s²                                                         [dividing both sides by 2]

Solving for the distance:

s = ut + 1/2 (at²)                                                  [second equation of motion]

s = 10(2) + 1/2(5)(2)²                                           [replacing the given values]

s = 20 + 10

s = 30 m

Therefore, the bus travelled 30 m in the given time interval

The near point of a human eye is about a distance of 25 cm.

The closest distance that an object may be viewed clearly without straining is known as the near point of the eye.

This distance (the shortest at which a distinct image may be seen) is 25 cm for a typical human eye.

The closest point within the accommodation range of the eye at which an object may be positioned while still forming a focused picture on the retina is also referred to as the near point.

In order to focus on an item at the average near point distance, a person with hyperopia must have a near point that is further away than the typical near point for someone of their age.

To learn more about near point, click:

https://brainly.com/question/32579304

#SPJ1

Answer:

C. Methane

Explanation:

A chemical equation can be defined as a reaction between two chemical elements.

For a chemical reaction (equation) to be balanced, the condition which must be met is that the number of atoms contained in the reactants must be equal to the number of atoms in the products.

This ultimately implies that, the mass and charge of the chemical equation are both balanced properly.

Methane is a hydrocarbon compound formed by the reaction between four (4) hydrogen atoms with a carbon atom. It belongs to the alkane group of hydrocarbons and has the following physical and chemical properties; colorless, highly flammable, non-toxic and odorless gas. The empirical formula for Methane is CH4.

Methane is a gas at 45 degrees celsius. This ultimately implies that, at 45°C methane is a gas because it is still within the range of standard temperature and pressure.

One full weather station reports  wave passing a spot every second is equivalent to a frequency of 1 Hz. The frequency is 48=12=0.5 Hz if 4 waves pass a spot in 8 seconds.

The number of cycles that make up a time unit is the frequency. The frequency of a wave with a 30-second period is therefore 1 30 = 0.033 cycles per second, or 0.033 Hertz (Hz).

A wave's speed and wavelength vary as it crosses a border and enters a new medium, but its frequency doesn't.

To know more about marine weather station visit :-

https://brainly.com/question/29150019

#SPJ1

Bureaucracy theory explains the basis of the systematic formation of any organization and ensures efficiency and economic effectiveness.

Bureaucracy is the theory proposed by Max Weber. It forms the ideal model for the management and administration of the organization and ensures its efficiency of organization into focus.

It includes six basic principles. They are Authority Hierarchy, Division of labor, impersonality, Career Orientation, Formal rules and regulations, and Selection process.

The characteristics of bureaucracy include: It can control and regulate the behavior of people in an organization. It is the organization that has the power to make decisions. The organizations have certain rules to follow by the people.

Bureaucracy is found in large organizations like governments and corporations. It has standardized methods, and procedures to practice. It doesn't allow any flexibility for the organization.

To learn more about the bureaucracy :

https://brainly.com/question/30696747

#SPJ1

Answer:

false

Explanation:

Determine the magnitude of B-A is 53.68

1.4

Magnitude is a term used to describe size or distance. We can relate the magnitude of the movement to the size and movement speed of the object. The magnitude of a thing or an amount is its size. A car moves at a faster pace than a motorcycle, just in terms of speed.

Magnitude is the relative size of an object (mathematics). The mathematical term for a vector's length or size is the norm. By using the symbol |v|, the magnitude of a vector formula can be utilized to determine the length of a given vector (let's say v). This amount is essentially the distance between the vector's beginning point and ending point.

To  learn more about magnitude from the given link:

brainly.com/question/14452091

#SPJ9

Answer:

0 because j×j =0

Explanation:

so a×b is 0

Answer:

Being silent most of the time is a good virtue under certain circumstances and environment. It is always advisable to remain quite silent and not be too quick to respond to situations or issues so as to avoid making and saying wrong words.

The ethics in a workplace involves communicating with others with less amount of talking as possible and more of body languages and signs. This is because the workplace is meant to be a serene place.

The magnitude of the power dissipated in resistor R4 is approximately 10,028 watts.

To find the power dissipated in resistor R4, use the formula:

P = I² × R

where P = power, I = current flowing through the resistor, and R = resistance of the resistor.

The total resistance, Rt, can be calculated using the formula:

1/Rt = 1/R1 + 1/R2 + 1/R3

Substituting the given values:

1/Rt = 1/3 + 1/0.8 + 1/2

Simplifying the equation:

1/Rt ≈ 1.6667

Rt ≈ 0.6 Ω

Next, calculate the total voltage, Vt, by summing the individual voltage sources:

Vt = ε1 + ε2 + ε3

Substituting the given values:

Vt = 9 + 6 + 4

Vt = 19 V

Now calculate the current flowing through resistor R4 using Ohm's Law:

I = Vt / Rt

Substituting the calculated values:

I = 19 / 0.6

I ≈ 31.6667 A

Finally, calculate the power dissipated in resistor R4:

P = I² × R4

Substituting the calculated values:

P = (31.6667)² × 10

P ≈ 10,028 W

Therefore, the magnitude of the power dissipated in resistor R4 is approximately 10,028 watts.

Find out more on magnitude here: https://brainly.com/question/33196976

#SPJ1

Answer:

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

PE = 30 × 10 × 15

We have the final answer as

Hope this helps you

The speed of light in material B is 1.6625 × 108 m/s.

The refractive index of a material is its optical density relative to that of a vacuum.

Material B has a refractive index of nB, and its speed of light is vB.

The speed of light in material A is given as 1.25 x 108 m/s.

The refractive indices of materials A and B have a ratio of nA/nB = 1.33.

We will use the formula:

nA/nB = vB/vA = nA/nB.

Therefore, nA/nB = vB/1.25 x 108 m/s.

This equation can be rearranged to give the speed of light in material B:

vB = nA/nB × 1.25 x 108 m/s.

Therefore, vB = 1.33 × 1.25 × 108 m/s.

We will perform this calculation:

vB = 1.6625 × 108 m/s.

Therefore, the speed of light in material B is 1.6625 × 108 m/s.

For more such questions on speed of light, click on:

https://brainly.com/question/17771723

#SPJ8

Answer:

the value of gravitational acceleration decreases as we go down and down while on the surface its value is greater...So on surface weight is greater as compared to mines or underground areas

Explanation:

ANSWER

Velocity of the mass reaches zero

EXPLANATION

We want to identify what hapens to a mass attached toa a spring at maximum displacement.

When a mass attached to a spring is at its maximum position of displacement, the direction of the mass begins to change. This implies that the velocity of the mass will reach zero.

Hence, at maximum displacement, the velocity of the mass reaches zero.

the answer is cancer is often named according to what body type it affects

Answer:

B,C

Explanation:

skin cancer is considered a very common type of cancer. Cancer is often named accordingly to a body type it affects.

Answer:

PE = 137.2931 J

Explanation:

PE = 137.2931 J

High tides occur when the sun and moon are at right angles to one another. This is because the gravitational pull of the moon and the sun combine to create larger-than-normal tides, known as spring tides. The correct option is A.

Gravitational pull is the force of attraction that exists between two objects with mass. The greater the mass of an object, the greater its gravitational pull.

Option B, "Low tides occur when the sun and moon are at right angles to one another," is incorrect. Low tides occur when the sun and moon are at a 90-degree angle (or "quarter moon") to each other, but this position also results in high tides on the opposite side of the Earth.

Option C, "The gravitational pull of the sun and moon combined creates larger than normal tides," is partially correct. The gravitational pull of both the sun and moon does contribute to the tides, but the specific position depicted in the image (sun and moon at right angles to each other) does not necessarily create larger than normal tides.

Option D, "The gravitational pull of the sun reduces the moon's gravitational pull to create moderate tides," is also incorrect. The sun's gravitational pull does have an effect on the tides, but it does not reduce the moon's gravitational pull. Rather, the combined gravitational pull of the sun and moon creates the tides we observe.

Therefore,The accurate description of the tide represented by the image below is option A: "High tides occur when the sun and moon are at right angles to one another."

To learn more about  Gravitational potential energy click:

brainly.com/question/31096472

#SPJ1

Answer: Motivation, Community, Communal Approach

Answer:

Motivation, Community, Communal Approach

Explanation:

Answer:

\(A_c=87.73*10^{21}m/s\)

Explanation:

From the question we are told that

\(r=5\times 10^{-11}\)

\(T=1.5 \times 10^{-16}\)

Generally the equation for velocity is mathematically given as

\(Velocity (v)=\frac{2 \pi r}{t}\)

\(V=\frac{2 \pi (5*10^{-11})}{1.5*10^{-16}}\)

\(V=\frac{2 \pi (5*10^{-11})}{1.5*10^{-16}}\)

Generally the equation for Centripetal acceleration is mathematically given as

\(A_c=\frac{V^2}{r}\)

\(A_c=(\frac{20.944*10^5)}{r5*10^{-11}}\)

\(A_c=87.73*10^{21}m/s\)

Answer:

B

Explanation:

quantization of energy is only seen in atoms

Answer:

Power of 5 watts is used

Explanation:

Mechanical Work and Power

Mechanical work is the amount of energy transferred by a force.

Being F the force vector and s the displacement vector, the work is calculated as:

\(W=\vec F\cdot \vec s\)

If both the force and displacement are parallel, then we can use the equivalent scalar formula:

W=F.s

Power is the amount of energy converted per unit of time. The SI unit of power is the watt, equal to one joule per second.

The power can be calculated as:

\(\displaystyle P=\frac {W}{t}\)

Where W is the work and t is the time.

It's required to calculate the power used in t=30 seconds when W=150 Joules of work are completed. Substitute in the formula:

\(\displaystyle P=\frac {150}{30}\)

P = 5 Watt

Power of 5 watts is used

Answer:

Explanation:

Let the x axis lie along the 66 lb force with the force vector tail at the origin.

The 68 lb force would lie along a radial 77° CCW from the x axis

The resultant would have an x and y values of

Fx = 66cos0 + 68cos77 = 81.3 lb

Fy = 66sin0 + 68sin77 = 66.3 lb

F = √(81.3² + 66.3²) = 104.87 = 105 lb

θ = arctan (66.3/81.3) = 39°

Answer:

The more mass an object has, the more gravitational acceleration it will experience

Explanation:

So when we talk about gravitational mass, we're talking about how much an object is affected by gravity. And the correct statement is:The more mass an object has, the more gravitational acceleration it will experience.Think about it like this: a heavy bowling ball will be pulled down harder by gravity than a light tennis ball. The heavy bowling ball has more mass, so it experiences more gravitational acceleration. Make sense?

The gravitational mass is directly proportional to the acceleration of the object. The more mass an object has, the more gravitational acceleration it will experience. Thus, the correct option is B.

Gravitational mass is the charge to which the gravity couples. Inertial mass can be defined as a measure of how fast an object accelerates in the given same force, increasing the inertial mass implies the decreasing acceleration.

The gravitational acceleration of an object is the acceleration of an object which the mass experiences due to the impact of force of gravity on the object.

Gravitational mass is a gravitational force which is present between any pair of given objects, which is given by the formula:

F = Gm₁m₂/ r²

where, G is the universal gravitational constant, m₁ and m₂ are the masses of the two objects, and r is the distance between them.

Therefore, the correct option is B.

Learn more about Gravitational mass here:

https://brainly.com/question/30429836

#SPJ2

Answer:Critical Thinking

Explanation:

7.2 in college success text back

Answer: time = 1.42 seconds

Explanation:

The formula for calculating time is expressed as

time = distance/speed

From the information given,

distance of person from cliff = 245

total distance travelled by echo in returning = 245 x 2 = 490

speed of sound = 344 m/s

Thus,

time = 490/344

time = 1.42 seconds