a car traveling at a constant velocity of magnitude 45.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard; the trooper sets out from the billboard to catch it, accelerating at a constant rate of 3.00 m/s2. how long does it take the trooper to overtake the speeding car?

Answer: The sun's rays strike Earth's surface most directly at the equator. This focuses the rays on a small area. Because the rays hit more directly, the area is heated more.

The light is most intense where it strikes Earth's surface most directly at the equator

For more information:

https://brainly.com/question/23286357?referrer=searchResults

A 1000 kg rocket with a 3000 kg propellant gas is intended for vertical launch. If the gasoline is used consistently at a rate of.

When the upward force of thrust is higher than the downward force of gravity, a rocket is said to have launched. A rocket will speed upwards as a result of this imbalanced force. As long as the thrust of a rocket engine produces an upward force, a missile will continue to accelerate.

A rocket experiences four forces while in flight: weight, velocity, and the aerodynamics of lift and drag. The weight's size is determined by the.

TO KNOW MORE ABOUT ENGINE VISIT:

https://brainly.com/question/10736767

SPJ1

I think Twelve is the answer

When direct current flows through an electrical coil, it generates a magnetic field.

If the direct current flowing through the coil is increasing, the magnetic field strength will also increase.

This, in turn, will cause the coil to generate a stronger electromagnetic force, which can be used for various purposes such as powering motors, generating electricity, and more.

However, if the current flow becomes too strong, it can cause the coil to overheat and potentially damage it.

Therefore, it's important to ensure that the coil is designed to handle the amount of current flowing through it to prevent any potential damage.

To know more about magnetic field here

https://brainly.com/question/29741079

#SPJ11

The addition of vectors allows to find the vector that the equilibrium is

                F = (40.02 i ^ - 49.95 j ^) N

Parameters given

To find

The force is a vector magnitude so the sum of the force must be done using the methods to add vectors.

One of the easiest methods to perform the addition of vectors is the analytical method where each vector is decomposed in a Cartesian system and the components added using algebraic summation and then the resulting vector is constructed.

We decompose the vector

                 cos θ = \(\frac{A_x}{A}\)Ax / A

                 sin θ = \(\frac{A_y}{A}\)

                 Aₓ = A cos θ

                 \(A_y\)= A sin θ

                 Aₓ = 64 cos 128.7

                 \(A_y\) = 64 sin 128.7

                 Aₓ = -40.02 N

                 \(A_y\) = 49.95 N

To find the vector that allows equilibrium, we work each axis independently

X axis

                 Aₓ + Fₓ = 0

                 Fₓ = - Aₓ

                 Fₓ = 40.02 N

Y axis

                  \(A_y + F_y =0 \\F_y = - A_y\\F_y = - 49.95 N\)

We can write the resulting vector in two ways

1) F = (40.02 i ^ - 49.95 j ^) N

2) in the form of module and angle

Let's find the module with the Pythagoras' Theorem

              F =\(\sqrt{F_x} ^2 + F_y^2)\\F = \sqrt{40.02^2 + 49.95^2 }\)  

              F = 64 N

Angles

              tan θ = \(\frac{F_y}{F_x}\)

              θ = tan⁻¹  \(\frac{F_y}{F_x}\)

              θ = tan⁻¹ \(\frac{-49.95}{40.02}\)

              θ = -51.3º

This angle is measured clockwise from the positive side of the x-axis

In conclusion using the sum of vectors we can find the vector that allows the equilibrium is

                F = (40.02 i^  - 49.95 j^ ) N

Learn more about adding vectors here:

https://brainly.com/question/14748235

Answer:

Oort cloud

Explanation:

The large reservoir of comet nuclei far beyond Pluto, from which we believe new long-period comets come into the inner solar system, is called Oort cloud.

The comets hich have the large periods that means more than 200 years to orbit the Sun generaly comes from Oort cloud hich is also knon as the cometary cloud.

The force F1 is equal and opposite to the downward force thus, F1 is equal to 60 N. The force F2 is inclined to 30 ° from leftward force and it is equal to 38.97 N in magnitude.

Force is an external agent acting on a body to deform it or to change its state of motion or rest. Force is a vector quantity and it is characterised by its magnitude and direction.

If two forces acting on a body from the same directions, then the net force will be the sum of these two forces. If they are acting from opposite directions, they will cancel each other in magnitude.

The force F1 is equal and opposite to the force acting downward. Thus its magnitude is 60 N. The force F2 is inclined to 30 ° from horizontal direction.

F2 = 45 cos 30 = 38.9 N.

To find more on force, refer here:

https://brainly.com/question/28875770

#SPJ1

Part A: To determine the amplitude of the oscillation, we can use the relationship between the maximum speed and the amplitude of simple harmonic motion. The maximum speed of the glider is given as 44 cm/s. The maximum speed occurs at the amplitude of the oscillation. Therefore, the amplitude of the oscillation is 44 cm.

Part B: The period of the oscillation is given as 1.8 s. The period (T) is the time taken for one complete cycle of the oscillation. The frequency (f) is the reciprocal of the period, so we have f = 1/T. Substituting the given value, we have f = 1/1.8 s ≈ 0.556 Hz.

To learn more about oscilation, you can visit

brainly.com/question/12603589

#SPJ11.

A positive Lachman maneuver or test refers to the presence of increased anterior translation of the tibia in relation to the femur when performing a manual examination of the knee joint.

This finding suggests a possible anterior cruciate ligament (ACL) injury, as the ACL provides stability to prevent this type of movement. A positive Lachman test is often used as part of the clinical evaluation of a knee injury, along with other tests and imaging studies, to determine the extent of the damage and guide treatment. Place the patient's knee in about 20-30 degrees flexion. According to Bates' Guide to Physical Examination, the leg should also be externally rotated slightly. The examiner should place one hand behind the tibia and the other on the patient's thigh. It is important that the examiner's thumb be on the tibial tuberosity. On pulling the tibia anteriorly, an intact ACL should prevent forward translational movement of the tibia on the femur ("firm end-feel"). So, a positive Lachman maneuver or test refers to the presence of increased anterior translation of the tibia in relation to the femur when performing a manual examination of the knee joint.

Learn more about positive Lachman maneuver at

https://brainly.com/question/30700280

#SPJ11

The apparent frequency heard by the observer on the other train is approximately 417.94 Hz.

Two trains are traveling towards each other at 30.5 m/s relative to the ground. One train is blowing a whistle at 500 Hz. To determine the apparent frequency heard by the observer on the other train, we can use the formula for the Doppler effect.

The formula is:

f' = (v + vr) / (v + vs) * f

Where:
f' is the apparent frequency
v is the speed of sound (343 m/s at standard temperature and pressure)
vr is the velocity of the receiver (observer)
vs is the velocity of the source (whistle)

In this case, since the two trains are moving towards each other, the velocity of the receiver and the source will have opposite signs.

Given:
v = 343 m/s
vr = -30.5 m/s (negative because it is towards the source)
vs = 30.5 m/s

Plugging these values into the formula:

f' = (343 - 30.5) / (343 + 30.5) * 500
f' = 312.5 / 373.5 * 500
f' = 417.94 Hz

So, the apparent frequency heard by the observer on the other train is approximately 417.94 Hz.

Learn more about frequency

brainly.com/question/29739263

#SPJ11

Answer: D. Is the jelly like fluid within a cell

watch the cell rap

Answer:

B

Explanation:

One object speeds up before it slows to a stop.

When reading this type of graph, we know that when the points are far apart, then the object is definitely moving quickly. Also again, we know that when the points are besides each other, then we say that the object is moving slow. When the distance that is between the points are changed, the velocity of the object subsequently changes too, and therefore, we say that the object is accelerated. When there are lots of points in one location, we will see that the object is not moving.

This then translates into that

The object(s) at the top begins to slow, eventually, it increases in its speed, going forward, it slows down again, before it finally halts. The object at the bottom on the other hand, starts fast, before slowing down.

then:

"One object speeds up before it slows to a stop "

Answer:

USE RUBBER CLOVES

USE A PLIER

USE CONDUCTIVE WIRES

SWITHC OFF THE MAIN SWITCH WHILE WIRRING

Explanation:

Answer:

The lenses in your eyes change shape to stay focused on a moving object.

Explanation:

the lens moves closer/further from the film to focus. In your eyes, the lens changes shape to focus: The muscles in your eyes change the actual shape of the lens inside your eyes. Sensitivity to light: A film in a camera is uniformly sensitive to light. The human retina is not

The orbital plane of the earth around the Sun is known as the ecliptic or ecliptic plane a path along the ecliptic can see against a background of stars from earth as the Sun moves around the celestial sphere.

Ecliptic in astronomy is the large circle that represents the Sun's apparent movement through the constellations over the course of a year from another angle it is the representation of Earth's orbit around the Sun on the celestial sphere Along the ecliptic the constellations of the zodiac are organized.

The sun's journey is indicated by the ecliptic a fictitious line in the sky Along with the moon planets also follow the ecliptic It designates the plane of the solar system by projecting Earth's orbit onto the cosmic sphere.

To know more about ecliptic visit:

brainly.com/question/3473428

#SPJ4

Answer:

gravity

Explanation:

gravity pulls anything with with weight towards the earth.

Answer

The reason why this occurs is because if there is any apparent wind being pushed towards the direction of the door, there will be an attempt of equalizing pressure and thus it will slam, or close very loudly when you even just push it shut with some effort.

Explanation

This has happened to me a variety of times, I would have the garage open, and it would be a little bit windy, and when I tried to close it, it would slam shut.

Airflow is a significant factor in the pressure appliance.

Your question at the end is correct (Differences in air pressure.)

Apologies for the late response, but I was interested in this as well.

The density of the block is 1.25 \(g/cm^3\)

Given the following data:

First of all, we would determine the volume of the block.

\(Volume \;of \;block = length\) × \(width\) × \(height\)

\(Volume \;of \;block = 3\) × \(4\) × \(7\)

Volume of block = 84 \(cm^3\)

To find the density of the block;

Density is mass per unit volume of an object such as a block.

Mathematically, the density of an object is calculated by using the formula;

\(Density = \frac{Mass}{Volume}\)

Substituting the values into the formula, we have;

\(Density = \frac{105}{84}\)

Density = 1.25 \(g/cm^3\)

Therefore, the density of the block is 1.25 \(g/cm^3\)

Read more: https://brainly.com/question/18320053

A) The period (T) will be approximately 2.6 s if the mass is doubled.

b) The period (T) will be approximately 1.3 s if the mass is halved.

c) The period (T) remains unchanged if the amplitude is doubled.

d) The period (T) remains unchanged if the spring constant is doubled.

For a mass-spring system undergoing simple harmonic motion, the period of oscillation is given by the formula:

T = 2π * √(m/k)

where T is the period, m is the mass of the block, and k is the spring constant.

Part A:Period (T) = 1.8 s, Mass (m) = 2m (doubled)

Using the formula:

T = 2π * √(m/k)

Substituting the given values:

1.8 = 2π * √(2m/k)

Solving for T:

1.8 / (2π) = √(2m/k)

Square both sides:

(1.8 / (2π))² = 2m/k

Simplifying:

(1.8²) / (4π²) = 2m/k

Solving for T:

T = (1.8² * k) / (4π² * 2m)

Calculating:

T ≈ (3.24 * k) / (12.57 * m)

Part B:

Period (T) = 1.8 s

Mass (m) = 0.5m (halved)

Using the formula:

T = 2π * √(m/k)

Substituting the given values:

1.8 = 2π * √(0.5m/k)

Solving for T:

1.8 / (2π) = √(0.5m/k)

Square both sides:

(1.8 / (2π))² = 0.5m/k

Simplifying:

(1.8²) / (4π²) = 0.5m/k

Solving for T:

T = (0.9² * k) / (4π² * 0.5m)

Calculating:

T ≈ (0.81 * k) / (12.57 * m)

In Part C, the period remains unchanged because the period of oscillation in simple harmonic motion is only dependent on the mass and spring constant, not the amplitude.

In Part D, the period also remains unchanged because the period of oscillation is independent of the spring constant.

learn more about simple harmonic motion here:

https://brainly.com/question/28208332

#SPJ11

Answer:

c. may be accompanied by the sound of explosively expanding hot air, called thunder.

Explanation:

Lightning is a discharge which is due to the reaction between oppositely charged charges in the clouds, or between clouds base and the Earth surface.

The motion of the cloud causes charging of clouds by friction, thus the reaction between opposite charges (jumping of charges from one cloud to another) in the cloud can lead to lightning. Also, oftentimes the bottom of a cloud is negatively charged so that this is attracted to the positive charge on the earth surface. Thus leading to a discharge called lightning.

Thus in the given question, the appropriate option is C. This implies that, lightning may be accompanied by the sound of explosively expanding hot air, called thunder.

Answer:

Hay diversas leyes que podemos usar acá.

Acá sabemos que la vejiga aumenta su tamaño al reducir la presión, esto tiene sentido, pues al haber menos presión, hay menos fuerza que comprime la vejiga, lo que le permite aumentar su volumen.

Acá tenemos una relación inversa de la forma: V = K/P

Una relación inversa donde la presión esta en el denominador y K es un termino que no depende ni del volumen ni de la presión.

Entonces, a medida que aumenta P, el denominador aumenta, por lo que el valor del volumen decrece.

Un ejemplo de una ecuación similar es la del gas ideal, por ejemplo, para un gas ideal dentro de un globo de volumen V para una dada presión P:

V = nRT/P

donde n es el numero de moles, R es la constante termodinámica y T es la temperatura, acá podemos ver que esta ecuación tiene la misma forma fundamental que la escrita arriba.

Acceleration is -7 m/s²

Explanation:

initial velocity (u) = 14 m/s

since it's gonna stop,

final velocity (v) = 0m/s

time taken(t) = 2 seconds

now,

a = (v-u)/t

or, a = (0-14)/2

or, a = -14/2

a = -7m/s²

Answer:

because it gives a complete thought

Following the reaction, carbon underwent both reduction and oxidation, changing its oxidation number to the following values: :

a. Carbon undergoes oxidation (+4).

b. Carbon undergoes oxidation (+2).

c. Carbon undergoes oxidation (+4).

d. Carbon undergoes reduction (-1).

e. Carbon undergoes reduction (-4).

Let's analyze each reaction to determine whether carbon has undergone reduction or oxidation and how the oxidation number of carbon has changed:

a. C + 2 CI₂ ⟶ CCI₄:

In this reaction, carbon undergoes oxidation. The oxidation state of carbon changes from 0 to +4 in CCI₄.

b. 2 C + O₂ ⟶ 2 CO:

In this reaction, carbon undergoes oxidation. The oxidation state of carbon changes from 0 to +2 in CO.

c. C + O₂ ⟶ CO₂:

In this reaction, carbon undergoes oxidation. The oxidation state of carbon changes from 0 to +4 in CO₂.

d. C₂H₂ +I₂ ⟶ C₂H₂I₂:

In this reaction, carbon undergoes reduction. The oxidation state of carbon changes from 0 to -1 in C₂H₂I₂.

e. C + 2 H₂ ⟶ CH₄:

In this reaction, carbon undergoes reduction. The oxidation state of carbon changes from 0 to -4 in CH₄.

To know more about the oxidation state refer here :

https://brainly.com/question/31688257#

#SPJ11

Complete question :

In the following reaction, identify whether carbon has underdone reduction or oxidation, and determine how the oxidation number of carbon has changed.

a. C + 2 CI₂ ⟶ CCI₄

b. 2 C + O₂⟶2 CO

c. C + O₂ ⟶ CO₂

d. C₂H₂ +I₂⟶ C₂H₂I₂

e. C + 2 H₂ ⟶ CH₄

When the proton starts to move upward the direction of the magnetic force changes and when the proton moves straight up the magnetic force turns to the left.

The direction of the force is perpendicular to the direction of the magnetic field and current, as given by Fleming's left-hand rule. Here the magnetic field is to the right and the direction of the current is upward. Protons feel a force on themselves due to the magnetic field. The force on the proton is proportional to the proton's magnetic flux density and velocity.

The velocity and momentum of a proton are affected by the force acting on it. If the velocity of a charged particle is perfectly parallel to the magnetic field, the magnetic field exerts no force on the particle, so the velocity remains constant. The momentum of a proton moving freely in a magnetic field is the product of the proton's mass and the proton's velocity. As the speed of a proton moving in a magnetic field changes, so does the momentum of the proton.

Learn more about The magnetic field here:-https://brainly.com/question/14411049

#SPJ4

The possibilities for the index of refraction of material 2 that allow for total internal reflection are 1.5, 1.4, and 1.2.

When a light ray passes from one medium to another, it undergoes refraction based on the difference in the indices of refraction of the two media. However, in the case of total internal reflection, the angle of incidence is greater than the critical angle and the light ray reflects back into the same medium instead of refracting into the second medium.

Now, if a light ray is incident from material 1 with an index of refraction of 1.2, and it undergoes total internal reflection, then the angle of incidence must be greater than the critical angle of material 1. This critical angle depends on the index of refraction of material 1 and the index of refraction of the second medium.

From the given options, we can see that the index of refraction of material 2 can be 1.5, 1.4, or 1.2, because for these values, the critical angle of material 1 is less than 90 degrees. However, if the index of refraction of material 2 is 1.0 or 0.9, the critical angle of material 1 will be greater than 90 degrees, and there will be no total internal reflection.

For more about internal reflection:

https://brainly.com/question/28231417

#SPJ11

The CRT and Helmholtz coils can be arranged to cause the electron beam to undergo a helical (or spiral) motion by orienting the Helmholtz coils in the direction of the magnetic field's axis and perpendicular to the electron's velocity. The CRT and Helmholtz coils should be placed such that the electrons move into the paper.

The experiment shows the b of an electron in a magnetic field. The data for a fixed (x,y) or (x,−y) location are given as R = 0.26 m and the average value for e/mc = 7.68.4 and 1/R is 1.6584. A plot of B vs. 1/R can be made from the data obtained in Step 7 above. The functional dependence of the curve is given as B = k/R2, where k is the constant of proportionality. The curve represents the magnetic field's effect on the electrons, which will be subjected to magnetic forces when moving through a magnetic field. The electron's velocity is not relativistic since the highest CRT potential used is V = 2 kV. The electron's velocity can be calculated from Equation 7, which gives v = 1.36 × 106 m/s. The force, magnetic field, and velocity directions should be as shown in the figure below: In the figure above, the helix is the trajectory of the electron's motion through the CRT and Helmholtz coils. The directions of v, B, and F are shown. The path of the electron is a helix in the x-y plane, and the electron's velocity is perpendicular to the magnetic field.

To know  more about electron beams

https://brainly.com/question/30521428

#SPJ11

Answer: 2934.75 Joules

Explanation:

Potential energy can be defined as energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

P.E = mgh

Where P.E represents potential energy measured in Joules.

m represents the mass of an object.

g represents acceleration due to gravity measured in meters per second square.

h represents the height measured in meters.

Given the following data;

Weight =645

Height = 4.55

P.E = mgh

But we know that weight = mg = 645N

Substituting into the equation, we have;

P.E = 645 • 4.55

P.E = 2934.75J

Potential energy, P.E = 2934.75 Joules.

Complete Question:

What is the power in a circuit that has a current of 12 amps and a resistance of 100 ohms?

Answer:

D. 14,400 watts

Explanation:

The electrical power of an electric circuit can be defined as a measure of the rate at which energy is either produced or absorbed in the circuit.

Mathematically, electrical power is given by the formula;

\( Electrical \; power = current * voltage \)

This ultimately implies that, the quantity (current times voltage ) is electrical power and it is measured (S.I units) in Watt (W).

Given the following data;

To find the power in the circuit, we would use the following formula;

Power = I²R

Where;

Power = 12² * 100

Power = 144 * 100

Power = 144,000 Watts

Answer:

lower

Explanation:

When you move the ball from your canoe to the water causes the water level to fall

If you carefully drop the bowling ball over the side of the canoe, and it sinks to the bottom of the pool, the water level in the pool will fall.

Both the bowling ball and the canoe will float on top of the water when they are in a canoe because they will displace more water than they can hold. However, if dropped, the ball will plummet to the bottom of the pool.

The bowl sinks because it is denser than water. The ball will in this scenario move less water than its own volume.

Therefore, when the ball is with you in the canoe in the second scenario, the volume of water displaced will be less than in the first example. Consequently, lower volume

Therefore, the water level in the pool will drop if you carefully toss the bowling ball over the side of the canoe and let it land at the bottom of the pool.

To learn more about the water level, refer to the link:

https://brainly.com/question/17750427

#SPJ2