I need help guyssss plssss

I Need Help Guyssss Plssss

Answers

Answer 1

Answer:

Cd(NO3)2 + Na2S --> CdS + 2 NaNO3

Explanation:


Related Questions

What is TRUE about a capitalist society?

Answers

The idea behind capitalism is that the free market of products and ideas is owned and driven by private citizens. A capitalist society is a social order in which private property rights and the free market serve as the basis of trade, distribution of goods, and development.

Answer:

In ideal terms: In a capitalist economic system, the owner of production is the individual, and the benefactors of production are first the individual and second the society. In a socialist or communist economic system, the owner of production is the state or the society, and the benefactor is the society.

Fun fact
An apple, potato, and onion all taste the same if you eat them with your nose plugged

Answers

Nice to knowwww NOW U MADE ME SMART

Answer:

Fun fact

An apple, potato, and onion all taste the same if you eat them with your nose plugged

Explanation: yes

If there is 10% sales tax on a car costing $18,000
How much is the sales tax?
O $180
O $1800
O $1.80
O $800

Answers

Answer:

180

Explanation:

i think

What are three key aerodynamics principles?
A Drag, height, and acceleration
B Drag, downforce, and drafting
C Acceleration, downforce, and motion D Acceleration, height, and motion

Answers

Answer:

A

Explanation:

There are three basic forces in aerodynamics: acceleration, which moves an airplane forward; drag, which holds it back; and height, which keeps it airborne. Lift is generally explained by three theories: Bernoulli's principle, the Coanda effect, and Newton's third law of motion.

Rita has two small containers, one holding a liquid and one holding a gas. Rita transfers the substances to two larger containers. Compare the behavior of the atoms in the liquid and in the gas once they are moved to the larger containers

Answers

Answer: liquids take the shape of the container they are in, but have definite volume. like liquids the shape of a gas changes with the container. unlike liquids the volume of a gas changes depending on the container it is in

Explanation:

Answer:

liquids flow freely, they take the shape of the container they are in, but have a definite volume. Like liquids, the shape of a gas changes with the container. This is because the atoms in a gas move rapidly and freely to fill any available space. Unlike liquids, the volume of a gas changes depending on the container it

Explanation

What is the mass of a person who weighs 500 N?

Answers

Answer:

51 kg

Explanation:

Answer:

51kg

Explanation:

So his mass is Weight/gravity=500 N / 9.8 m/s^2 = 51 kg.

An object has a density of 0.755 g/mL. Its volume is 640 mL. What is its mass?

Answers

Answer:Density = 7.5 g/ml (By putting the given values.) [ The ratio of the mass to volume is the density, that's why the unit of the density is also the ratio of the unit of mass to the unit of volume. ] Hence, the density of the object is 7

Explanation: Google

How long will it take you to reach the cafeteria if it is 75 m away and you can travel at an average speed of 2 m/s down the stairs?

Answers

37.5 seconds

Explanation: 75/2=37.5

A 25 N force is applied to a 1.4 kg mass on level ground. If a 5 N frictional force is present between the surface and the object, what is the magnitude of the acceleration of this object?

Answers

Given parameters:

Force applied to the mass = 25N

Mass of the body = 1.4kg

Frictional force  = 5N

Unknown:

Acceleration of the object = ?

Solution:

The net force on the object;

     Fapplied - Frictional force = net force (m x a)

 m is the mass of the body

 a is the acceleration

Input the parameters and solve;

    25 - 5 = 1.4 x a

         1.4a  = 20

             a = [tex]\frac{20}{1.4}[/tex]   = 14.3m/s²

         

The magnitude of the acceleration of the object is 14.3m/s²

a student drops a tennis ball from rest. the ball falls 13m to the ground.find the final speed of the ball,just before it reaches the ground ​

Answers

[tex] ({v})^{2} - ({v(0)})^{2} = 2 \times a \times ∆x[/tex]

[tex]v = the \: \: speed \: \: before \: \: reaching \: \: ground \\ [/tex]

[tex]v(0) = the \: \: speed \: \: in \: \: the \: \: rest \: \: which \: \: is \: \: zero \\ [/tex]

[tex]a = Acceleration \: = \: Gravity \: \: acceleration = 10 \\ [/tex]

[tex]∆x = covered \: \: distance[/tex]

_________________________________

[tex] {v}^{2} - ({0})^{2} = 2 \times 10 \times 13 [/tex]

[tex] {v}^{2} = 2 \times 2 \times 5 \times 13 [/tex]

[tex]v = \sqrt{ {2}^{2} \times 65 } [/tex]

[tex]v = 2 \sqrt{65} \: \: \frac{m}{s} [/tex]

Done.....♥️♥️♥️♥️♥️

Questlon 3 of 5 What statement best describes what a circle graph shows? O A. Data as proportions of a whole B. The relationship between two variables OC. A frequency distribution D. The average of a data set​

Answers

Answer:

it would be a

Explanation:

true or false
Impulse is defined as the force exerted on an object times the time it lasts.

Answers

Answer: true

Explanation:   when two objects collide and completely bounce apart with no lasting deformation or generation of heat, the collision is said to be elastic.

have a good day!! please mark me brainliest

A block attached to a horizontal spring of force constant 75N/m undergoes SHM with an amplitude of 0.15m. If the speed of the mass is 1.7 m/s when the displacement is 0.12m from the equilibrium position, what is the mass of the block?

Answers

Answer:

x = A sin w t         for SHM where w = angular frequency

sin w t = x / A = .12 / .15 = .8    where w t is the angle in degrees

w t = 53.1 deg       (w itself is in rad / sec)

since v = A w cos w t  

then v / x = w cos w t / sin w t = w / tan w t

w = v / x * tan 53.1 = 1.7 / .12 * tan 53.1 = 18.9 /sec

Also for SHM    w = (k / m)^1/2

m = k / w^2 = 75 / 18.9^2 = .21 kg

Wooden handles on knives do not require maintenance.
TRUE
FALSE

Answers

Answer: false

Explanation:

You have to make sure it doesn’t stay wet

Does the mass of an object dictate the acceleration of
a falling object

Answers

Answer:

No.

Explanation:

Because the acceleration of falling objects is constant and is not affected by mass

Answer: no

The acceleration of an object is equivalent to the gravitational acceleration. The size, shape, and weight of an item are not a cause in the motion of the object. So all objects, regardless of its mass, size, or shape fall freely with the same acceleration.

What keeps the sun shining

Answers

Answer:

The Sun shines by turning hydrogen into helium in its core.

Explanation:

This process is called nuclear fusion. Fusion happens when lighter elements are forced together to become heavier elements. When this happens, a tremendous amount of energy is created.

What is electricity and where does it come from?

Answers

Answer:

it is created power we use everyday

electricity is made of the flow of electrons.

but its made by a generated by a power plant bye electric generators

brainliest?

use your brain :)

You use 35 joules of energy to move a 7 newton box. How far did you move it?

Answers

If you picked it straight up, you lifted it 5 meters.

If you moved it horizontally, it could be ANY distance.

Answer:

5

Explanation:

distance = work / force

d = 35 J / 7 N

d = 5 m

a car drives 16 m east, then 25 m south, then 16 m west. calculate the distance travelled by car

Answers

Answer:

16m + 25m + 16m = 57m

the car travelled 57 m

A bowling ball is rolling down the lane at a constant velocity of 7.5 m/s. If the bowling ball travels 18 m down the entire lane, how long does it take for the ball to reach the end?​

Answers

Answer:

The answer is 2.4 s

Explanation:

To find how long it took the ball to reach the end we use the formula

[tex]t= \frac{d}{v} \\ [/tex]

where

t is the time

d is the distance

v is the velocity

From the question

d = 18 m

v = 7.5 m/s

We have

[tex]t = \frac{18}{7.5} \\ [/tex]

We have the final answer as

2.4 s

Hope this helps you

A car initially rolling at 12 m/s comes to a stop in 20 seconds. Assuming the car has uniform acceleration, how far does it travel during this time interval?

Answers

As the car comes to rest it’s final velocity v will be 0
So our information g is
u = 12 m /s
t = 20s
v = 0

So acceleration is v-u/t
So 0-12/20
= -12/20
= -0.6 m / s^2

S= ut + 1/2 at^2
S = 12 x 20 + 1/2 x -12/20 x 400
S= 240 - 120
S = 120

It travels 120 m during the time interval.
Please mark brainliest

A mover's dolly is used to pull a 115 kg refrigerator up a ramp
into a house. The ramp is 2.10 m long and rises 0.850 m. The
mover exerts a force of 496 N up the ramp. How much work is
spent overcoming friction?

Answers

Answer:

84 J

Explanation:

Work by mover:

W = Fd

W = 496 J (2.1 m)

W = 1042 J

Work by dolly and ramp:

W = Fd

W = (mg)d

W = 115 kg (9.8 m/s/s) (0.85 m)

W = 958 J

1042 J - 958 J

= 84 J

The amount of work  spent in overcoming friction is 83.65 J.

 

From the question,

The amount of work spent in overcoming friction = work done by the mover-potential energy of the refrigerator.

This is expressed mathematically as,

W' = Fd-mgh................... Equation 1

Where W' = work spent against friction, F = force applied, d = distance, m = mass of the refrigerator, g = acceleration due to gravity, h = height.

From the question,

Given: F = 496 N, d = 2.10 m, m = 115 kg, h = 0.85 m

Constant: g = 9.8 m/s².

Substitute these values into equation 1

W' = 496(2.1)-(115×9.8×0.85)

W' = 1041.6-957.95

W' = 83.65 J.

Hence, the amount of work  spent in overcoming friction is 83.65 J

Learn more about friction here: https://brainly.com/question/13683196

A car accelerates from 2 m/s to 5 m/s in 1.8 seconds. What is the acceleration of the car?

Answers

Answer:

5-2 / 1.8 = 1.66m/s

Explanation:

acceleration = vf-vi / t

vf= 5m/s

vi= 2m/s

t= 1.8 s

A sports car has a mass of 1,460kg and accelerates at 2.04 meters per second squared. What is the magnitude of the force acting on the sports car?

Answers

Answer:

The answer is 2978.4 N

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

mass = 1,460kg

acceleration = 2.04 m/s²

We have

force = 1460 × 2.04

We have the final answer as

2978.4 N

Hope this helps you

a soccer player kicks a ball with an initial velocity of 10 meters per second at an angle of 30 degrees

Answers

Answer:

Did you make a diagram?

Make your hypotenuse 10 and the base angle 30°

find the length of the adjacent side using

10cos30°

Explanation:

Answer:

A soccer player kicks a ball with an initial velocity of 10.0 meters per second at an angle of 30.0° above the horizontal. The magnitude of the horizontal component ofthe ball's initial velocity is which of the following?

9.8 m/s

0.50 m/s

15 m/s

7.4 m/s

Explanation:

How do we know if something is living or non-living?

Answers

If something is living it usually has to eat something to thrive, for example a tree photosynthesis to get the nutrition it needs while a rock just sits there and isn't living.

Answer:

To be considered living it have to use energy, it has to be made of cells. Something living is also referring to things that were once living

Explanation:

"A car is travelling at 70 m/s. The driver sees a cow in the road and slows down with a constant acceleration for 10 seconds before coming to a stop. What is the car’s displacement by the time is stops." what information do you know?

Answers

The question does not ask for anything in particular. I will calculate the acceleration and distance.

Answer:

The acceleration of the car is [tex]-7\ m/s^2[/tex]

The distance traveled before stopping is 350 m

Explanation:

Constant Acceleration Motion

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

Being a the constant acceleration, vo the initial speed, vf the final speed, and t the time, the following relation applies:

[tex]v_f=v_o+at\qquad [1][/tex]

The distance traveled by the object is given by:

[tex]\displaystyle x=v_o.t+\frac{a.t^2}{2}\qquad [2][/tex]

The car has an initial speed of v0=70 m/s when the driver sees a cow in the road and steps on the brakes with an (assumed) constant acceleration during t=10 seconds before stopping (vf=0).

With the information provided, we can calculate the value of the acceleration and the distance traveled.

Using the equation [1] we can solve for a:

[tex]\displaystyle a=\frac{v_f-v_o}{t}[/tex]

Substituting the numerical values:

[tex]\displaystyle a=\frac{0-70}{10}=-7\ m/s^2[/tex]

The acceleration of the car is [tex]-7\ m/s^2[/tex]

The distance is now calculated by using [2]

[tex]\displaystyle x=70\cdot 10+\frac{(-7)\cdot 10^2}{2}[/tex]

[tex]\displaystyle x=700-\frac{700}{2}=350\ m[/tex]

The distance traveled before stopping is 350 m

15% input work is lost due to friction then what is the efficiency of machine?​

Answers

Answer:

I think 50%

Explanation:

Because the efficiency of a machine is always less than 100%. And efficiency of a machine is 75%.

So, if 15% input work is lost due to friction then efficiency is maybe 50%.

3.The melting point of lead is 327.5 °C. Which of the following statements is correct? (1 Point) A)Lead is a gas at 280 °C B)Lead is a solid at 310 °C C)Lead is a liquid at 300 °C D)Lead is a solid at 390 °C

Answers

Answer:

B)Lead is a solid at 310 °C

Explanation:

The melting point of a substance refers to that temperature in which the substance changes state from solid to liquid. The melting point of a substance, which is usually a temperature value, is that actual temperature the change of state occurs.

According to this question, the melting point of Lead (Pb), which is naturally a solid metal, is 327.5°C. This means that LEAD (Pb) will only change to its liquid state at exactly 327.5°C and above. Therefore, at a temperature of 310°C, which is lower than lead's melting point, Lead element will still be a solid.

Answer: The correct answer is B. Lead is a solid at 310

Explanation:

Hurry plz there’s a timer!!

Paco was driving his scooter west with an initial velocity of 4 m/s. He accelerates at 0.5 m/s for 30 seconds.
What is his final velocity?
O 2 m/s
O 8 m/s
O 19 m/s
O 60 m/s

Answers

Answer:

the answer is 19 ,30 (second) times 0.5= 15

15+4= 19

After Paco drives his scoter west with an initial velocity of 4 m/s and then accelerates at 0.5 m/s² for 30 s, his final velocity is 19 m/s, so the correct option is the fourth.  

The final velocity of Paco can be calculated with the following equation:

[tex] v_{f} = v_{i} + at [/tex]

Where:

[tex] v_{f}[/tex]: is the final velocity =?

[tex]v_{i}[/tex]: is the initial velocity = 4 m/s

a: is the acceleration = 0.5 m/s²

t: is the time 30 s

Hence, the final velocity is:

[tex] v_{f} = 4 m/s + 0.5 m/s^{2}*30 s = 19 m/s [/tex]

Therefore, the correct option is 19 m/s.    

You can find more about acceleration and velocity here: https://brainly.com/question/9163788?referrer=searchResults  

   

I hope it helps you!          

Other Questions
Plz Help 100 pointsCool air moves from an air conditioning unit to the rest of a room in a process called ____________. Which two words best describe mary Please help me thanks metal that does not containiron Need help with number 13 What sport or activity is the Minoans depicted performing in frescoes?A.racing horsesB.sailingC.jumping over bullsD.playing a primitive ball game Peasants gained power during the Hundred Years War by fighting in the English army. growing food for French soldiers. attacking the English monarchy. spying on French troops. Can someone help me with this please? The workers pull on the handle of the cart can best be described as a force havingGroup of answer choicesmagnitude, onlyneither magnitude nor directiondirection, onlyboth magnitude and direction Any punctuation Needs To Be Fixed Or Capitalization? There are 12 kittens. If they all average 4.7 pounds, what is the total weight of all 12 kittens what does science explain? (4 points)A) moral values B) biased opinion C) meaning of lifeD) natural phenomena Read the sentence.The squirrel who ran in circles around the circumference of the tree chattered angrily at the curious cat.Which correctly revises the sentence?The squirrel, who ran in circles around the circumference of the tree, chattered angrily at the curious cat.The squirrel who ran in circles around the circumference of the tree, chattered angrily at the curious cat.The squirrel, who ran in circles around the circumference of the tree chattered angrily, at the curious cat.The squirrel who ran in circles around the circumference of the tree chattered angrily, at the curious cat. Jennifer received a coupon for 40% off her purchase of a regularly priced item from her favoritestore. If Jennifer wants to order a shirt from the store that is originally $30, how much wouldshe have to pay for the shirt after the coupon? Explain! Reward! Thank you!!!! what is the range of a function h(w) = 19- 3w if the domain is {-4, -1,2,5} Diego is buying shrimp and rice to make dinner. Shrimpcosts $6.20 per pound and rice costs $1.25 per pound.Diego spent $10.55 buying shrimp and rice.The relationship between pounds of shrimp s, poundsof rice r, and the total cost is represented by theequation 6.20s + 1.25r= 10.55.Write an equation that makes it easy to find the numberof pounds of rice if we know the number of pounds ofshrimp purchased. 8-10 sentences that answer the who, what, where, whenand why and the impact of the document (use your notes& other resources)PLEASE GIVE ME THE ANSWER WILL CROWN BRAINIEST!!!! Click this link to view O*NETs Work Context section for General and Operations Managers. Note that common contexts are listed toward the top, and less common contexts are listed toward the bottom. According to O*NET, what are some common work contexts for General and Operations Managers? Check all that apply.outdoors, under covercontact with othersin an open vehicle or equipmenttelephonefreedom to make decisionsexposed to hazardous conditions Now, imagine an area in which there are only very tall trees.Only the giraffes with the longest necks survive, and these giraffes reproduce with each other to produce offspring that also have longer necks. This is an example of _______. A. selective breeding B. genetic engineering C. extinction D. natural selection