The graph shows the motion of a lift starting at rest and initially moving upwards: What is the acceleration of the lift between 0 and A?

Answer:

h = 10 cm

Explanation:

The magnification produced by a mirror is given by :

[tex]m=\dfrac{h'}{h}[/tex]

h' is the image size and h is the object size

We have, h = 10 cm, m = +1

So,

[tex]m=\dfrac{h'}{h}\\\\h=\dfrac{10}{1}\\\\h=10\ cm[/tex]

So, the size off the object is same as that of the size of the image i.e. 10 cm.

Answer:

The mass of cylinder made up of alloy of platinum iridium that is kept at international bureau of weights and measures is called one standard kilogram.

The system of seven fundamental quantities is called SI system .

Answer:

4 seconds

Explanation:

Given:

v₀ = 12 m/s

v = 32 m/s

a = 5 m/s²

Find: t

v = at + v₀

32 m/s = (5 m/s²) t + 12 m/s

t = 4 s

Answer:

v = 1/3 m / s = 0.333 m / s

in the direction of the truck

Explanation:

The average speed is defined by the variation of the position between the time spent

           v = Δx / Δt

since the position is a vector we must add using vectors, we will assume that the displacement to the right is positive, the total displacement is

           Δx = 20 - 15 +20

           Δx = 25 m

therefore we calculate

         v = 25/75

         v = 1/3 m / s = 0.333 m / s

in the direction of the truck

As shown in the figure below, Justin walks from the house to his truck on a windy day. He walks 20 m toward the truck, 15 m back to retrieve his wind-blown hat, and another 20 m to reach the truck. He walked a total time of 75 s.

Answer:

What is Justin’s average velocity over the 75 s period?

Answer: 0.33  m/s

What is Justin’s average speed over the 75 s period?

Answer: 0.73  m/s

Answer:

can someone help me with physics to

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

Answer:

The answer is (B). hot dry desert climate

Explanation:

Answer:

0.00054386734

Explanation:

9.1093897*10-31 kg = 0.00054386734

Answer:

A.

Mass per page = mass of book / number of pages

Mass per page = 2.5kg / 500 pages = 0.005kg

B.

Mass per page = mass of book / number of pages

Total mass = 2.5kg = 2,500grams = 2,500,000mili grams

Mass per page = 2500000mg / 500 pages = 5000mg

Answer:

D.

Explanation:

I think its D. because Tea during a cold workout isnt safe at all. Drinking tea while working out adds weight and you just simply dont need tea when working out.. Hope this helps man :)

C. You shouldn't exercise while drinking hot tea because you can spill it and burn yourself especially while on a treadmill.

If this helped please mark me as brainliest!

[tex]\left[\begin{array}{ccc}Thanks,\\JustSomeIdiot\end{array}\right][/tex]

The answer is increase.

d = m/v. if you increase the mass without changing the volume, the density will increase.

The element that is least likely to form bonds is found in group 18. Thus, the correct option for this question is D.

The elements of group 18 in the modern periodic table are known as noble gases. These gases are colorless, odorless, tasteless, and nonflammable under standard conditions.

They were once labeled group 0 in the periodic table because it was believed they had a valence of zero, meaning their atoms cannot combine with those of other elements to form compounds.

Due to this fact, they would not have any ability to form bonds with other elements in order to produce compounds or molecules. They are the most stable elements because they have a full outer shell of valence electrons, so they have no need to bond with other elements.

Therefore, the element that is least likely to form bonds is found in group 18. Thus, the correct option for this question is D.

To learn more about Noble gases, refer to the link:

https://brainly.com/question/1984010

#SPJ6

Explanation:

1 km/hr × (1000 m/km) × (1 hr / 3600 s) × 45 s = 12.5 m

Answer:

All of the following devices transmit energy/information: cell phones, walkie talkies, remote controls, and sunlight.

They are all radiation.

I got a 100 on this test.

1. consider the free body diagram. If the sum of the tension forces is equal to the force of gravity, which description BEST applies?

answer. A girl hangs by both hands, motionless, from a trapeze.

2. What causes sea floor spreading ?

answer. Magma.

3. 10 n -> (BOx) <- 20 n Which expression represents the total force on the block ?

answer. 10n =+ -20n.

4. Which waves move by replacing one particle with another?

answer. Sound waves.

5. The table shows dates and appearance of index fossils. Which rock layers can be dated most precisely?

answer. a layer containing both a fossil from 1 and 2

This is an illustration of the ___ moon

answer. new.

hope these help

If you try to squish a table it aint gonna move. That is because,

C. They are packed closely together.

A isn’t true.

B is true, they do vibrate, but that is NOT the reason why it doesn’t change when pressure is applied.

D is wrong because C is correct.

Answer:

Cells is your answer

Explanation:

Cells are the basic unit of life

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Answer:

s = 38.7 m

Explanation:

First we calculate the distance covered during uniform motion of reaction time.

s₁ = vt

where,

s₁ = distance covered during uniform motion = ?

v = uniform speed = 11 m/s

t = time = 2.3 s

Therefore,

s₁ = (11 m/s)(2.3 s)

s₁ = 25.3 m

Now, we calculate the distance covered during decelerated motion:

2as₂ = Vf² - Vi²

where,

a = deceleration = -4.5 m/s²

s₂ = distance covered during decelerated motion = ?

Vf = Final Velocity = 0 m/s

Vi = Initial Velocity = 11 m/s

Therefore,

2(-4.5 m/s²)s₂ = (0 m/s)² - (11 m/s)²

s₂ = (-121 m²/s²)/(-9 m/s²)

s₂ = 13.4 m

the total distance will be:

s = s₁ + s₂

s = 25.3 m + 13.4 m

s = 38.7 m

Answer:

the ant

Explanation:

because work is done when there will be involvement of displacement in the direction of the force.

Answer:

The ant is doing work but the elephant is not

Explanation:

Work done = Force × Displacement

In case of ant and housefly,

Ants are dragging the housefly , so they are displacing the housefly from one point to the other by applying certain force , so we can say that they are doing work

In case of elephant and tree,

When the elephant is pushing the tree( applying force) , the tree is not moving which means that there is no Displacement, so work done will be

Work done = Force × Displacement

= Force × 0

= 0

0 to 60 mph in 4.5 seconds

Explanation:

Answer:

the benefit is that they can see and experiment on the model but some times the model isn't accurate resulting in immediate failure

im only 13 sorry if this is wrong i tried.

Answer:2.5s

Explanation:

Answer:

An atom makes up almost everything; it is the building block of this universe. An atom is made out of protons, electrons, and neutrons. Protons are positively charged particles, Electrons are negatively charged particles, and Neutrons are neutral. The protons, and neutrons are found in the very center of the atom, which is called the nucleus. The electrons orbit the nucleus.

Hopefully, this helps! :D

Ask your question below!

Answer:

Atoms make up everything, and they are made out of protons, neutrons, and electrons.

Explanation:

Hopefully its correct, have a nice day! :)

Answer:

1.c

2.b

3.d

4.a

Explanation:

There are your answers

Answer:

Sodium---Malleable, soft, and shiny

Silicon---Has properties of both metals and nonmetals

Bromine---Highly reactive gas

Argon---Nonreactive gas

Answer:

Torque is the rotational equivalent of linear force. Torque is the engine's rotational force.

Hope this helps..

Explanation:

Answer:

Explanation:

a particular kind of matter with uniform properties.

Answer:

a particular kind of matter with uniform properties or the real physical matter of which a person or thing consists and which has a tangible, solid presence.

Explanation:

Answer:

Correct Options :

Acceleration on Earth: 1.6 m/s

Mass on the Moon: 100 kg

Answer:

Taking water and oxygen from Earth is rather expensive and hard to do.

Explanation:

Without water and oxygen, travel to other planets is basically impossible

The energy produce by electricity is known as electric energy.

Answer:

Electrical energy is energy derived from electrical potential energy or kinetic energy

Explanation:

when used loosely ,electrical energy refers to energy that has been converted from potential energy.