i need help for physics this is due todayyyyy

Answer:

2.4 m/s

Explanation:

Momentum is conserved.

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(0.08 kg)(0.5 m/s) + (0.05 kg)(0 m/s) = (0.08 kg)(-0.1 m/s) + (0.05 kg) v

0.04 kg m/s = -0.08 kg m/s + (0.05 kg) v

0.12 kg m/s = (0.05 kg) v

v = 2.4 m/s

Answer:

When a simple pendulum makes 10 oscillation in 20 seconds, the time taken for each osillation

=20/10

= 2seconds

hence, as the time period is calculated to be 10secondd, the frequency of oscillation

=1/T

=1/2

= 0.5 here's

Answer:

A problem statement is a concise description of an issue to be addressed or a condition to be improved upon. It identifies the gap between the current (problem) state and desired (goal) state of a process or product.

Explanation:

Answer:

C. 100 ft/min

Explanation:

A scalar quantity has no direction.

A scalar with direction is called a vector.

Answer:

C. 100ft/min

Explanation:

A scalar quantity is a quantity that has a magnitude but no direction, a vector quantity is a quantity that has both a magnitude and a direction. The other three answers are vectors quantities while C. is a scalar.

Answer:

57.1 m/s

Explanation:

Speed = Distance/Time

Speed = 800/14

Speed = 57.1 m/s (3sf)

Answer:

??? I don't get it, please explain. What is your question????

Explanation:

Answer:

Explanation:

66.2mi/h to m/s

[tex]\frac{1609m}{1mi}[/tex]×[tex]\frac{66.2mi}{1h}[/tex]×[tex]\frac{1h}{60min}[/tex]×[tex]\frac{1min}{60s}[/tex]

[tex]\frac{1609*66.2}{60*60}[/tex]= 29.58772222

Pls make sure of the way of solving to be sure...

Answer:

yes

hope this will help you

Answer:

At 11 AM, the train is a constant speed of 110 km/h. when the truck is 160 ahead. When they meet, it will be 2 PM

Explanation:

At the train's first hour he moved to 110 km. The truck is at 160 km. The second hour includes train at 220 km, with truck at 240. At 2 PM, they are at the same place.

Initial velocity = zero (i.e., free fall)

Final velocity = 30m/s

Acceleration due to gravity = 10m/s²

For a body falling freely under the action of gravity, g is taken positive[tex].[/tex]

◈ First equation of kinenatics :

⇒ v = u + gt

⇒ 30 = 0 + 10t

⇒ t = 30/10

⇒ t = 3s

Hence, object will attain a speed of 30m/s after 3s.

Answer:

Please find the answer in the explanation

Explanation:

Constant velocity is the uniform velocity. That is, the velocity is steady and it does not change. You will have a constant velocity when you maintain a certain velocity for a long time without changing it.

At constant velocity, acceleration is equal to zero.

Instantaneous velocity is the change in distance in a specific direction per specific time. It is a velocity at a certain time. It is not uniform.

Change in instantaneous velocity is equal to acceleration.

Explanation:

An IC engines means an Internal Combustion engine. Here, the combustion takes place in side a chamber or a cylinder internally, hence it is known as internal combustion engine.

Combustion is the process where oxygen reacts with the fuel and it burns to produce a large amount of force and heat. In each revolution of the crank, the engine creates a power stroke when the piston goes from the bottom dead center to the top dead center.

During each power stroke, the energy released forces the piston down and the crankshaft is rotated.

Answer: Chemical

Explanation: because it is changeing its chemical structure if its wrong sorry .

Answer:

chemical, chemical, chemical, mechanical, chemical, mechanical, chemical. im still trying to figure out the rest!

Explanation:

Explanation:

VECTORS DEF: A vector is a quantity that has both magnitude and direction.

Answer:

with teamwork

Explanation:

you need to use team work so the right answer is C

Answer: 120 km

Explanation:

Distance= speed x time

her speed is 40km/hr

and her time was 3 hours

40x 3= 120 km

Answer:

t = 5.56 s

Explanation:

In order to calculate the time interval taken by the mountain biker to come to a stop, we will use third equation of motion and first find the deceleration:

2as = Vf² - Vi²

where,

a = deceleration = ?

s = distance = 15 m

Vf = Final Velocity = 0 m/s

Vi = Initial Velocity = 5.4 m/s

Therefore,

2a(15 m) = (0 m/s²) - (5.4 m/s)²

a = - 0.972 m/s²

Now, we use 1st equation of motion:

Vf = Vi + at

therefore,

0 m/s = 5.4 m/s + (-0.972 m/s²)(t)

t = (5.4 m/s)/(0.972 m/s²)

t = 5.56 s

The time taken should be t = 5.56 s

here we used the third equation of motion

But first we determine the deceleration.

We know that

2as = Vf² - Vi²

here,

a = deceleration = ?

s = distance = 15 m

Vf = Final Velocity = 0 m/s

Vi = Initial Velocity = 5.4 m/s

So,

2a(15 m) = (0 m/s²) - (5.4 m/s)²

a = - 0.972 m/s²

Now, we use 1st equation of motion:

So,

Vf = Vi + at

0 m/s = 5.4 m/s + (-0.972 m/s²)(t)

t = (5.4 m/s)/(0.972 m/s²)

t = 5.56 s

Hence, The time taken should be t = 5.56 s

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If you increase your work and decrease your time, you will have A. more power.

Power (P) is the rate at which work is done. In the International System of Units, the unit of power is the Watt, equal to one joule per second. Mathematically, it is equal to work (W) divided by time (t).

[tex]P = \frac{W}{t}[/tex]

If you increase your work, you increase the numerator in the expression above. If you decrease your time, you decrease the denominator in the expression above. They both have the same consequence that is an increase in power, that is, more work done in less time.

If you increase your work and decrease your time, you will have A. more power.

Learn more: https://brainly.com/question/24328975

Answer: D

8.403 m/s

Explanation:

Given that the women's world record for the 400-meter run around an oval track is held by Marita Koch, with a time of 47.60

seconds.

Her average velocity during this race will be

Velocity = distance/ time

Velocity = 400 / 47.6

Velocity = 8.403 m/s

Therefore, her average velocity during this race will be 8.403 m/s

D is therefore the correct answer.

Answer:

1). Displacement = 24 m

2). Distance = 28 m

Explanation:

We will use the concept that distance is a scalar quantity and displacement is a vector quantity.

1). Displacement of the car between 0 s and 24 s

  Displacement = distance between origin (0, 0) and a point on x - axis (24, 0)

                          = 24 - 0

                          = 24 meters

2). Distance traveled by the car = Distance traveled by the car on the ramp

    = Distance traveled on the tracks (AB + BC + CD)

    AB = [tex]\sqrt{6^2+8^2}[/tex]

          = [tex]\sqrt{36+64}[/tex]

          = [tex]\sqrt{100}[/tex]

          = 10 m

    BC = 16 - 8

          = 8 m

    CD = [tex]\sqrt{8^2+6^2}[/tex]

          = 10 m

     Therefore, distance traveled by the car = 10 + 8 + 10

                                                                        = 28 m

Answer:

1). Displacement = -12 m

2). Distance = 12 m

Explanation:

Answer:

Hi there!

Your answer is;

345,600 mins per 240 days

Explanation:

First, start small

How many minutes are in one hour?

60mins per 1 hr

How many minutes per one day?

60 × 24= 1440

1440 mins per 1 day

How many minutes per 240 days?

1440× 240= 345600

345,600 mins per 240 days

Hope this helps

Answer:

A change in the size of the population may bring about changes in the culture. For example, food brought to this country by immigrant groups have become common in many American kitchens. Population increases and decreases affect the economy. For example, by increasing the demand for goods and services, a growing population may increase employment and stimulate the economy. An increase in the general population also means that there are more people occupying the same amount of space, which creates more crowded conditions. In addition, the larger population brings increased demand for energy, food, housing, schools, stores, and transportation. People also bring about changes simply by moving from one place to another. Migrations of people within a country can cause social changes, such as the loss of regional distinction within the country. Social and cultural changes also result from changes in the average age of a population. When fewer people are having babies, for example, there is less need for schools, recreation centers, and other services geared toward children.

Explanation:

Population changes stimulate social change in a variety of ways, including direct and indirect changes in food habits and the educational system, migration patterns, and people's overall mental and physical health.

Population growth is a negative factor for the environment because rural areas are converting to urban areas and more people are migrating to cities. Due to this rapid population growth, a food shortage will occur, the cost of living will increase in the advanced cities, the demand will increase but not the supply, and this will lead to mental pressure on the generation to keep a place to live and food to eat and in this way the social change will happen.

Hence, population changes stimulate social change in a variety of ways, including direct and indirect changes in food habits and the educational system, migration patterns, and people's overall mental and physical health.

Learn more about population growth here.

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Answer:

Si un objeto se mueve en relación a un marco de referencia (por ejemplo, si una profesora se mueve a la derecha con respecto al pizarrón, o un pasajero se mueve hacia la parte trasera de un avión), entonces la posición del objeto cambia. A este cambio en la posición se le conoce como desplazamiento. La palabra desplazamiento implica que un objeto se movió, o se desplazó.

Explanation:

El desplazamiento se define como el cambio en la posición de un objeto. Se puede definir de manera matemática con la siguiente ecuación:

\text{desplazamiento}=\Delta x=x_f-x_0desplazamiento=Δx=x  

f

​  

−x  

0

​  

start text, d, e, s, p, l, a, z, a, m, i, e, n, t, o, end text, equals, delta, x, equals, x, start subscript, f, end subscript, minus, x, start subscript, 0, end subscript

x_fx  

f

​  

x, start subscript, f, end subscript se refiere al valor de la posición final.

x_0x  

0

​  

x, start subscript, 0, end subscript se refiere al valor de la posición inicial.

\Delta xΔxdelta, x es el símbolo que se usa para representar el desplazamiento.

Debemos ser cuidados al usar la palabra distancia, ya que hay dos maneras de usar el término en física. Podemos hablar acerca de la distancia entre dos puntos, o podemos hablar de la distancia recorrida por un objeto.

La distancia se define como la magnitud o el tamaño del desplazamiento entre dos posiciones. Observa que la distancia entre dos posiciones no es la misma que la distancia recorrida entre ellas.

Es importante darse cuenta que la distancia recorrida no tiene que ser igual a la magnitud del desplazamiento (es decir, la distancia entre dos puntos). De manera específica, si un objeto cambia de dirección en su trayecto, la distancia total recorrida será mayor que la magnitud del desplazamiento entre esos dos puntos. Ve los ejemplos resueltos a continuación.

Answer:

Please find the answer in the explanation

Explanation:

Given that Force affects the body and results in different changes.

The grid that has the words related to the effects of force are :

a) Force could be a push or a pull.

c) Force has magnitude as well as direction.

e) Force acting on an object may cause a change in its state of motion or a change in its shape.

f) A force can act on an object with or without being in contact with it.

Answer:

Solution : Given,  

Load (L) = ?

L×LD=E×ED

L=100 cm=50N×40 cm

L=40×50÷100

L=20N

Explanation: