Help please I give brainliest

Help Please I Give Brainliest

Answers

Answer 1

Answer:

can someone help me with physics to

Answer 2

Answer:

equation D=mass/volume

D=m/v

example sample : D=m/v= 250/100 = 2.5 g/cm³

1- D=m/v = 454/2274 = 0.2 g/cm³

2- 1 liter = 1000 cm³

D=m/v=1000/1000= 1 g/cm³

3 - d=m/v

0.6 g/cm³=m / 1.2 cm³

m=0.6*1.2 = 0.72 g

4: a:171/15  = 11.4 g/cm^3     lead

   b:148/40 = 3.7 g/cm^3     Aluminum

   c:475/250 =1.9 g/cm^3   Bone

   d: 680/1000 = 0.68 g/cm^3   Gasoline (lithium)

5: the density of a substance equal to the mass of the substance divide by volume


Related Questions

In a study, the data you collect is Habits on a Always/Sometimes/Never scale.What is the level of measurement?

Answers

Answer:

Ordinal

Explanation:

There are four levels of measurement which include the nominal, ordinal, interval, and ratio. The data collected above is ordinal data as it qualifies the data and still indicates the ordering of the data. It gives the observer an idea of the range of data collected or its rating although mathematical calculations may not be done with it.

The other forms of data include the nominal which simply qualifies the data, the interval which qualifies the data but which the differences between the data can be obtained, and of course the data has no starting point. The ratio scale which is similar to the interval scale but which the ratios between the data obtained can be compared.

what is acceleration of a 12 kg cart if a net force of 144 N is applied on it?​

Answers

Answer:

The correct answer is I just did the quiz

Force,F=144N

Mass,m=12Kg

Force=Mass*Acceleration

144=12*a

12a=144

a=12

which of the following best describes inertia?

a) Inertia is the same as mass
b) Inertia is a result of net force
c) Inertia is the ability of an object to change its motion
d) Inertia is the tendency of objects to resist changes in its motion​

Answers

Answer : D
Explanation: Intertia is the resistance of any physical object to change its velocity

Answer:

d) inertia is the tendency of object's to resist changes in its motion

Lucy took 3 hours to cover 2/3 of a journey. She covered the
remaining 60 miles in 2 hours. What was the average speed
for the whole journey?
mph

Answers

Deleted this answer, sorry for any inconveniences that it may have caused.

Cuts are ________, meaning an injury to the skin and the soft tissue underneath it.
A. contusions
B. lacerations
C. abrasions
D. bruises

Answers

Answer:

lacerations

Explanation:

Answer:

B. lacerations

Explanation:

A P E X!

Physical Science
convert 5.3 hl to dal

Answers

Answer: 53 dal

Explanation: 5.3x10=53, to get dal you have to multiply by 10 to get 5.3x10=53.

Hope this helped! Please mark Brainliest!

A 2 kg ball is dropped from the roof of a building 27.5 m tall. How long
does it take to hit the ground?

Answers

Answer:

wow I need time to solve dis

A city bus travels six blocks east and eight blocks north east wok is 100 m long is a bus travels as distance and 15 minutes what is the average speed on the bus

Answers

Answer:

the average speed on the bus =  1.55 m/s

Explanation:

From the information we are being provided with ;

a city block travels 6 blocks due east

and 8 blocks due north

the length of the individual blocks = 100m

As such their respective distance will be

distance (d) traveled due east direction by bus = 6 × 100 = 600 m

distance (d) traveled towards the north direction by bus = 8 × 100 = 800 m

The total distance covered  = (600+ 800)m

= 1400 m

However, it requires 15 minutes to travel this distance by bus.

Thus,  

the average speed = distance/ time

the average speed on the bus = 1400 m / (15 × 60) s

the average speed on the bus =  1400 m / 900 s

the average speed on the bus =  1.55 m/s

If a swimmer is traveling at a constant speed of 2 m/s, how long would it
take to swim the length of a 50-meter Olympic sized pool ?*

Answers

Yeah so 50-meter Olympic sized pool would be 25 mm

5p - 14 = 8 p + 4 find p

Answers

Answer:

Explanation:

5p - 14 = 8p + 4

5p = 8p + 18 <-- Moving constants to one side; add the same number of +14 to both sides.

-3p = 18. <-- The same thing with the variable itself.

p = -6 <-- Divide both sides by negative 3.

how many meters does it take to make one mile ​

Answers

Answer:

1610 meters

Explanation:

Answer:

1609.344 Meters

Explanation:

There is no explanation

What is the phase of water when its temperature is 150 °C?
A. Solid
B. Liquid
C. Gas
D. None of the above.

Answers

Answer:gas

Explanation:

The phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.

What are the phases of substance?

Phase is a term used in thermodynamics to describe an amount of matter that is chemically and physically uniform or homogeneous, can be mechanically separated from a nonhomogeneous mixture, and may consist of a single material or a combination of substances.

Although crystalline, colloid, glassy, amorphous, and plasma phases are thought to exist, the three basic phases of matter are solid, liquid, and gas (vapor). A phase change is defined as the transformation of a phase from one form to another.

As the boiling point of water is 100° C, the phase of water when its temperature is 150 °C is gas. Hence, option (C) is correct.

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your uncle danny just moved into a new apartment and wants to make his famous spaghetti sauce for his new neighbors

Answers

Answer:

he invs them

Explanation:

its common sense

Answer:

He invs them.

Explanation:

a 50-kg object moving at 12 m / s has a momentum of 600 kg m / s what is the mass of an object moving at 4 m/s has the same momentum

Answers

Explanation:

p=mv

600kgms-1=m × 4ms-1

m=600kgms-1/4ms-1

m=150kg

The mass of the object which has momentum of 600kgm/s with the velocity of 4m/s is 150kg.

What is Momentum?

Momentum is the product of the mass and velocity of the object. Momentum is the quantity of motion which is made up of the amount of matter moved and the velocity at which it moves. Momentum is a vector quantity because it has both the magnitude and direction. The SI unit of momentum is kg.m/s (kilogram meter per second).

p = m × v

p = momentum of the object,

m = mass of the object,

v = velocity of the object

600kgm/s = m × 4m/s

m = 600/ 4

m = 150kg

Therefore, the mass of the object will be 150kg.

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The area of a triangle is 30 m². Using the equation A=12bh A = 1 2 b h , where b is base and h is height, solve for h if b = 3 m. Round to three decimal places, if necessary.

Answers

Answer:

20 metres

Explanation:

Given that the area of a triangle is 30 square metres (m²). Using the equation A = 1/2bh, this is the formula for the triangle.

where b is base and h is height

Given that b = 3 metres.

To calculate h, Substitute b and A into the equation

30 = 1/2 × 3 × h

3h = 60

h = 60/3

h = 20 m

Therefore, h is equal to 20 metres

Fill in the blank. Bones fitted together in the shape of a give the human body structure.

Answers

Answer:

skeletal system

Explanation:

hope its the right answer:))

Answer:

top

Explanation:

The number of proton in a atom of 3H1 is

Answers

Answer:

5th hhssjn wixi. sjxbwjs. bajz wjxhqjzisjnisja

Answer:

the answer is 1

Explanation:

What is the velocity of the object moving from 3 - 7 seconds?
O m/s
-6 m/s
6 m/s

Answers

That's the flat-top marked ' B '.

It's 6 m/s.

does uniform acceleration means increasing acceleration?

Answers

Yes. It means that the acceleration increases at a constant rate, for example 3 mph every second.

If the distance between two charged particles is doubled, the force between them changes by a factor of ___. (1 point)
1/2
1/4
2
4

Answers

Answer:

decreases 1/4 of the original value

If the distance between two charged particles is doubled, the force between them changes by a factor of 1/4.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Force between two charge particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

If the distance between two charged particles is doubled, the force between them changes by a factor of 1/4.

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I need help finding the average acceleration fo tyler and bree

Answers

fo really bro learn how to spell

100 POINTS UP FOR GRABS FOR ANYONE WILLING TO HELP! PLEASE!

Answers

Answer:

how can I download your doc it's not getting on please help I want to answer your question. you take a screenshot and send once more on this is it okkk.

Explanation:

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How much miles is it from the surface to center of earth

Answers

The average is 3,959 miles.

it is 3,959

Explanation:

hope this helps you.

A car, initially traveling 24.0ft/s, steadily speeds up to 58.0ft/s in 5.40s. Determine all unknowns and answer the following question.

How far did the car travel during this time?

Answers

Answer:

acceleration = 6.29 ft^2/s

distance traveled by car = 405 ft

Explanation:

formula 1 : u = v - (a*t)

where u = initial velocity

v = final velocity

a = acceleration

t = time.

solving for acceleration.

24 = 58 - (a*5.4)

a = (58 - 24)/ 5.4

a = 340/ 54 = 6.29 ft^2/s

formula 2: v = d/t - (a*t/2)

58 = d/5.4 - ((340*54)/20)

d = 405 ft

A car travels 200 miles in 8 hours calculate the cars speed

Answers

Answer:

25 mi/hr

Explanation:

Distance = 200 miles

Time = 8 hours

[tex]Speed = \frac{Distance}{Time}[/tex]

Substitute values into the given equation and solve.

[tex]Speed = \frac{200}{8} \\\\Speed = 25 \:miles/hour[/tex]

A car travels 200 miles in 8 hours is 25 miles/h (25 mph).

What is Speed?

The speed of an object is defined as the magnitude of change of its position with time or the magnitude of change of its position per unit time. It is a scalar quantity which has only magnitude , no direction.

It can be expressed as:

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

s = speed

d = distance traveled

t = time elapsed

The SI unit of speed is metre per second. (m/s)

For above given information,

Distance = 200 miles

Time= 8 hours

So, speed will be 200 miles/ 8 hrs

Speed = 25 miles/hr or 25 mph.

Thus , a car travels 200 miles in 8 hours is 25 miles/h (25 mph).

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A person travels by car from one city to another with different constant speeds between pairs of cities. She drives for 40.0 min at 50.0 km/h, 8.0 min at 70.0 km/h, and 35.0 min at 35.0 km/h and spends 40.0 min eating lunch and buying gas. Determine the average sped for the trip. Determine the difference between the intial citties along the route.

Answers

Answer:

Average speed = 40.50 km/h (Approx)

Explanation:

Distance = Time × Speed

Total distance = (40/60) 50 + (8/60) 70 + (35/60) 35

Total distance = 33.33 km + 9.33 km + 20.17 km

Total distance = 62.80 km

Average speed = Total distance / Total time taken

Average speed = 62.80 / [(40+8+35+40)/60]

Average speed = 62.80 / 1.55

Average speed = 40.50 km/h (Approx)

What happens to the chemical structure of water when it changes state?
A. Water molecules break apart to form individual atoms.
B. Water molecules harden into ice molecules.
C. Water molecules melt into gas molecules.
D. Nothing happens to the chemical structure.

Answers

Answer:

c) Water molecules melt into gas molecules.

The chemical structure of water when it changes state - D. Nothing happens to the chemical structure.

Physical state of an object is the condition where substance have different energy content. For instance water is on heating it change into vapor or gaseous phase while cooling (decreasing heat content) causes water to become ice in solid phase. Therefore,

physical states is only in the energy content of the substance.Change in the state or phase of water does not change the chemical property. However, changing phase can alter the speed of the chemical reactions.

Thus, the change in physical state do not affect chemical properties, but affects the kinetics of the reactions.

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Ravi, Rajiv and Shyam are sitting inside a room. The body temperature of. Ravi, Rajiv and Shyam are 35.8 ℃, 36.2 ℃ and 36.4 ℃. It is given that the temperature of air present in the room is 36.1 ℃. Who among them will feel cold? Give Reason, please reply as soon as possible!! (explanation needed).

Answers

Answer:

"Cold" in this case, is defined as a difference between the body temperature and the room/ambient temperature.

If the body temperature is higher than the room temperature, then the "sensors" in our skin will sense that the ambient temperature is lower than ours, then we feel "cold"

The room temperature is: 36.1°C.

The higher body temperature is the one of Shyam, 36.4°C

The difference is really small:

36.4°C - 36.1°C = 0.3°C

But still, he will feel the room a little cold for him

What is radiation? Transfer of heat through objects touching the source. Transfer of heat through direct physical contact. Transfer of heat through electromagnetic waves. Transfer of heat through the movement of particles.

Answers

Answer:

Transfer of heat through electromagnetic waves

Answer:

Transfer of heat through electromagnetic waves.

I got it right in a test

Jan ran 4 miles north in 28 minutes. What was Jan's average velocity?

Answers

Answer:

3.83 m/s

Explanation:

Given that,

Distance covered by Jan, d = 4 miles

1 mile = 1609.34 m

4 miles = 6437.38 m

Time, t = 28 minutes = 1680 s

Jan's average speed,

v = d/t

[tex]v=\dfrac{6437.38\ \text{m}}{1680\ \text{s}}\\\\v=3.83\ \text{m/s}[/tex]

Hence, the average velocity of Jan is 3.83 m/s.

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The point (3,65) lies on the graph representing a proportional relationship. Which of the following points also lie on the same graph? Oral rehydration salts are used toA. purify air that has been pollutedB. replenish moisture in the environment after natural disasters such as earthquakesC. purify water supplies to help minimize the risk of catching choleraD. help replenish fluids in the body after it suffers fluid loss from diseases such as cholera Matter and energy areOA) similar to work and distance.OB) interconvertible.O C) not related to each other.O D) similar to mass and weight. What does the color black represent what is the full form of PDP When an iron nail is ground into powder, its mass ____.a. stays the sameb. decreasesc. increasesd. cannot be determinedWhen paper turns yellow-brown upon exposure to sunlight, what type of change is likely taking place?a. a physical changeb. a chemical changec. neither a physical change nor a chemical changed. both a physical change and a chemical change condone in a sentence pls Read the following sentence in Spanish and answer the question. "Hoy en Florida salio el sol" What is the weather in Florida? Question 2 options: llueve nieva calor Point P is presently located at the origin. Move P, and observe how the rotated Images change. Be sure that neither the images nor the preimage overlap. Record the distances of the vertices of the prelmage ABC from P. Do the same for the other images. Round all of your answers to the hundredths place. What can you conclude about your observations in question 4? What happened as you moved p, the center of rotation, about the coordinate plane? How can you extend your discoveries about the vertices to all point that lie on a figure or shape? At a time of 30 seconds a runner passes a distance marker labeled "125 meters." If the velocity of the runner is +5.0 m/s, when did the runner pass the distance marker for 75 meters? Directions: Assume the identity of the chef. Write a letter to the professor's son in which youattempt to convince him that you could serve as the boy's father. Use evidence from the text to back up your claim. Keep the chef's characteristics in mind when creating your argument.Must be at least 2 paragraphs. A water tank holds 486 gallons but leaking at a rate 4 gallons per week. A second water tank holds 648 gallons but is leaking at a rate of 7 gallons per week. After how many weeks will the amount of water in the 2 tanks? The amount of water that holds the two tanks will be the same in _ weeks. -A local pizzeria sells a small pizzawith one topping for $6 and a smallpizza with three toppings for $8. Whatis the charge for a plain small pizzaand the charge for each topping? Name an industry that was negatively impacted (lost money) by the coronavirus? And why Describe the life of people during the industrial revolution. "An unexpected benefit of deliberate practice is ______" In the late 1800s,what was the effect of mass production on manufacturing 1.0250 - 0.00063 =O 1.021.02431.02437DONE What is the average speed of a motorcycle that goes 90 meters in 5 seconds? List the first 4 terms of the sequence. f(1) = 7, f(n) = f(n-1)+4