A bus travels east for 3 km, then north for 4 km. What is its final displacement?
5 km southeast
5 km northwest
5 km northeast
5 km southwest

Answer:

The steps are:-

Answer:

Mass wasting

Explanation:

Took the test

Answer:

Mass wasting

Explanation:

because

Answer: Examples of Newton's third law of motion are ubiquitous in everyday life. For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air. Engineers apply Newton's third law when designing rockets and other projectile devices.

Explanation: hope this helps :)

Answer:

Yes

Explanation:

Answer:

Its speed will be 280 m/s

Explanation:

Constant Acceleration Motion

It's a type of motion in which the speed of an object changes by an equal amount in every equal period of time.

If a is the constant acceleration, vo the initial speed, vf the final speed, and t the time, vf can be calculated as:

[tex]v_f=v_o+at[/tex]

The object accelerates from rest (vo=0) at a constant acceleration of [tex]a=8\ m/s^2[/tex]. The final speed at t=35 seconds is:

[tex]v_f=0+8*35[/tex]

[tex]v_f=280\ m/s[/tex]

Its speed will be 280 m/s

Answer:

to talk??? i will talk with you

Answer: Image result for What is produced in the nucleolus?

The nucleolus is a region found within the cell nucleus that is concerned with producing and assembling the cell's ribosomes. Following assembly, ribosomes are transported to the cell cytoplasm where they serve as the sites for protein synthesis.

Explanation: hope this helps! PLs mark me as brainliest! Thank you and have a wonderful day/night!

Answer:

The second diagram does that

The last diagram below represents what happenes when electromagnetic waves strike a reflective material. The last diagram is showed in the image below.

Answer:

Explanation:El ejercicio vigoroso previene en mayor medida el síndrome metabólico (un conjunto de enfermedades que aumentan el riesgo cardiovascular         )

mientras que una reacción vigorosa se   produce entre el aluminio y el gas cloro. Como consecuencia de la gran cantidad de energía liberada se producen luz y calor

Answer:

B

Explanation:

Answer:

B

Explanation:

Answer:

Explanation:

The momentum of an object can be found by using the formula

momentum = mass × velocity

From the question we have

momentum = 78 × 24

We have the final answer as

Hope this helps you

Answer:

v₃ = 9.62[m/s]

Explanation:

To solve this type of problem we must use the principle of conservation of linear momentum, which tells us that the momentum is equal to the product of mass by velocity.

We must analyze the moment when the astronaut launches the toolkit, the before and after. In order to return to the ship, the astronaut must launch the toolkit in the opposite direction to the movement.

Let's take the leftward movement as negative, which is when the astronaut moves away from the ship, and rightward as positive, which is when he approaches the ship.

In this way, we can construct the following equation.

[tex]-(m_{1}+m_{2})*v_{1}=(m_{1}*v_{2})-(m_{2}*v_{3})[/tex]

where:

m₁ = mass of the astronaut = 157 [kg]

m₂ = mass of the toolkit = 5 [kg]

v₁ = velocity combined of the astronaut and the toolkit before throwing the toolkit = 0.2 [m/s]

v₂ = velocity for returning back to the ship after throwing the toolkit [m/s]

v₃ = velocity at which the toolkit should be thrown [m/s]

Now replacing:

[tex]-(157+5)*0.2=(157*0.1)-(5*v_{3})\\(5*v_{3})= 15.7+32.4\\v_{3}=9.62[m/s][/tex]

The velocity with which the astronaut must throw the tool kit is 9.62 m/s.

The given parameters:

Apply the principle of conservation of linear momentum to determine the velocity of the tool kit;

[tex]m_1 u_1 + m_2u_2 = v(m_1 + m_2)\\\\-0.1(157) \ + 5u_2 = 0.2(157 + 5) \\\\-15.7 + 5u_2 = 32.4\\\\5u_2 = 32.4 + 15.7\\\\5u_2 = 48.1\\\\u_2 = \frac{48.1}{5} \\\\u_2 = 9.62 \ m/s[/tex]

Thus, the velocity with which the astronaut must throw the tool kit is 9.62 m/s.

Learn more about conservation of linear momentum here: https://brainly.com/question/7538238

Answer:

true

Explanation:

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Answer:

D. shortest wavelength

Explanation:

Photons with the highest energy have the shortest wavelength. The shorter the wavelength, the higher the energy of a photon.

A photon is a quantity that transmits electromagnetic energy from one place to the other.

Energy, wavelength and frequency of a photon are connected using the expression:

    E =  h f  = [tex]\frac{hc}{wavelength}[/tex]  

E is the energy

h is the Planck's constant

 f is the frequency.

Answer:

I Believe the answer is

[tex]D. \: \: atmosphere[/tex]

Explanation:

I hope how this helps!

Answer:

i my though may it is auestion no B i am not correct may its write

Explanation:

B

Answer:

Flakes of brick: Athens, Ohio

Cracks in rocks: Sandston, Mudcracks

Lichen growing on rocks: Antarctica living below the surface

Roots or plant growth making cracks in concrete: In the driveway, sidewalk, or road.

Answer:

750J

Explanation:

Given parameters:

Mass of the object   = 0.15kg

Velocity of the object  = 100m/s

Unknown:

Kinetic energy of the body  = ?

Solution:

The kinetic energy is the energy due to the motion of a body. It is mathematically expressed as;

        K.E  = [tex]\frac{1}{2}[/tex] m v²  

m is the mass of the body

v is the velocity

 Now insert the parameters and solve;

     K.E  = [tex]\frac{1}{2}[/tex]  x 0.15 x 100²   = 750J

Answer:

umm nobody can solve this without a picture of what it is......

Explanation:

Answer:

The distance the plane covered while it was accelerating is 80,633.3 m

Explanation:

Given;

initial velocity of the plane, u = 90 m/s

acceleration of the plane, a = 1.5 m/s²

final velocity of the plane, v = 500 m/s

The distance covered by the plane is given as;

v² = u² + 2ad

where;

d is the distance covered by the plane;

500² = 90² + 2(1.5)d

500²  - 90² = 3d

241900 = 3d

d = 241900 / 3

d = 80,633.3 m

Therefore, the distance the plane covered while it was accelerating is 80,633.3 m

Answer: Wavelength is the measure of the length of a complete wave cycle. The velocity of a wave is the distance traveled by a point on the wave. In general, for any wave the relation between Velocity and Wavelength is proportionate. It is expressed through the wave velocity formula.

Explanation: For any given wave, the product of wavelength and frequency gives the velocity. It is mathematically given by wave velocity formula written as-

V=f×λ

Where,

V is the velocity of the wave measure using m/s.

f is the frequency of the wave measured using Hz.

λ is the wavelength of the wave measured using m. Velocity and Wavelength Relation

Amplitude, Frequency, wavelength, and velocity are the characteristic of a wave. For a constant frequency, the wavelength is directly proportional to velocity.

Given by:

V∝λ

Example:

For a constant frequency, If the wavelength is doubled. The velocity of the wave will also double.

For a constant frequency, If the wavelength is made four times. The velocity of the wave will also be increased by four times.

Hope you understood the relation between wavelength and velocity of a wave. I truely hope this helps you out tho! Goodluck!

Answer:

The width of the lake is 340 m

Explanation:

Constant Velocity Motion

It occurs when an object travels the same distance every equal interval. For example, if it travels 5 m in one second, then 10 m in two seconds, etc., it has a constant velocity.

The speed of the sound is assumed as v=340 m/s and the person measures the time that a sound goes and comes from the edge of a lake as t=2 seconds. The distance it travels is:

d = v.t

d = 340 m/s * 2 s

d = 680 m

But that distance is twice the width of the lake, the real measured width is 680 m / 2 = 340 m

The width of the lake is 340 m

A magnetic field forms around the wire. and The field is perpendicular to the direction of flow of the current.

A magnetic field is a visual representation of how the magnetic force is distributed around and inside of magnetic objects.

Most people are at least somewhat familiar with common magnetic items and are aware that there may be forces at work between them.

We are aware that magnets have two poles and that the attraction or repulsion between two magnets depends on how they are oriented (similar poles). We are aware that this occurs in a certain area that surrounds a magnet.

Therefore, A magnetic field forms around the wire. and The field is perpendicular to the direction of flow of the current.

To learn more about magnetic field, refer to the link:

https://brainly.com/question/15719243

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Answer:

El valor de la fuerza entre ambas cargas es 168,750,000 N.

Ambas cargas son positivas, por lo que entre ellas existirá una fuerza de repulsión.

Explanation:

Los responsables de todos los fenómenos eléctricos son los electrones, porque pueden escapar de la órbita del átomo y son mucho más ligeros que las otras partículas.

La carga eléctrica es una propiedad física propia de algunas partículas subatómicas que se manifiesta mediante fuerzas de atracción y repulsión entre ellas. La materia cargada eléctricamente es influida por los campos electromagnéticos, siendo a su vez, generadora de ellos.

Entre dos o más cargas aparece una fuerza denominada fuerza eléctrica cuyo módulo depende del valor de las cargas y de la distancia que las separa, mientras que su signo depende del signo de cada carga.

La fuerza entre dos cargas se calcula como:

[tex]F=k*\frac{Q*q}{d^{2} }[/tex]

donde:

Siendo 1 millicoulomb [mC] = 0,001 coulomb [C] y 100 cm= 1 m, en este caso sabes:

Reemplazando:

[tex]F=9*10^{9}\frac{N*m^{2} }{C^{2} } *\frac{0.005C*0.006C}{(0.04m)^{2} }[/tex]

F= 168,750,000 N

El valor de la fuerza entre ambas cargas es 168,750,000 N.

Las cargas del mismo signo se repelen, mientras que las cargas con diferente signo se atraen. En este caso ambas cargas son positivas, por lo que entre ellas existirá una fuerza de repulsión.

Answer:

Work done = 4 J

Final Kinetic Energy = 4 J

Explanation:

From the question,

Work done = force × distance

W = F×d................... Equation 1

Given: F = 4.0 N, d = 1.0 meter.

Substitute these values into equation 1

W = 4×1

W = 4 Joules.

Also,

Kenetic Energy = 1/2 × mass × velocity×velocity.

K.E = 1/2(mv²)........... (2).

But,

F = ma

Where F = 4 N, m = 1 kg.

a = 4/1 = 4 m/s².

Using,

v² = u² + 2as............. Equation 3

Where u = 0 m/s, a = 4 m/s², s = 1 m.

Substitute into equation 3

v² = 0² +2×4×1

v² = 8

v = √8 m/s.

Substitutting into equation 2

K.E = 1/2(1)(√8)²

K.E = 1/2(8)

K.E = 4 J.

Hence the work done and the Final Kinetic energy are thesame = 4 J

The work done by the Pete is 4.0 J. And its final velocity and kinetic energy are 2.82 m/s and 3.97 J respectively.

Given data:

The force applied by the Pete Zaria is, F = 4.0 N.

The mass of mud is, m = 1.0 kg.

The distance of the countertop is, s = 1.0 m.

The work by the Pete on the mug is equal to the product of applied force and the distance covered by the mug along the rooftop. Therefore,

W = F × s

W = 4.0 × 1.0

W = 4.0 J

Now, apply the third kinematic equation of motion to obtain the final velocity of the mug as,

[tex]v^{2} = u^{2}+2as[/tex]

Here, a is the magnitude of acceleration and its value is,

F = ma

4.0 = (1.0)a

a = 4.0 m/s²

Now,

[tex]v=\sqrt{0^{2}+(2 \times 4 \times 1)}\\\\v = 2.82 \;\rm m/s[/tex]

Now. the kinetic energy of the mug is calculated as,

[tex]KE = \dfrac{1}{2}mv^{2}\\\\KE = \dfrac{1}{2} \times 1.0 \times 2.82^{2}\\\\KE = 3.97 \;\rm J[/tex]

Thus, we can conclude that the work done by the Pete is 4.0 J. And its final velocity and kinetic energy are 2.82 m/s and 3.97 J respectively.

Learn more about the kinetic energy here:

https://brainly.com/question/17858145

Answer: The law of conservation of energy can be seen in these everyday examples of energy transference: Water can produce electricity. Water falls from the sky, converting potential energy to kinetic energy. This energy is then used to rotate the turbine of a generator to produce electricity.

Explanation: Thats what we learned