What is the displacement from 0 to 35.5 seconds

Answer:

The average setting for a gas-powered hot water boiler is 180°F. This provides the appropriate level needed for most cold weather temperatures. If you can raise the temperature manually, do not set it any higher than 210°F (which is often the limit), and try to remain down at 190°F if you need the extra heat.

Liquid substance has the most likely phase.

Solid:

Liquid:

Gas:

Hence, the correct answer is Option B, liquid.

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Answer:

If it measurement system were not established ,then there may create lots of problem such as: unequal measure ,anyone can get more ,or anyone can get less mass ,so on .

Answer:

what you need help on exactly?

Explanation:

The area of the plate is 167.78 centimeters.

The area of the plate can be calculated with the equation of the area of a rectangle:

[tex] A = l*w [/tex]   (1)      

Where:

l: is the length = 24.74 cm

w: is the width = 6.78 cm

By entering the above values into equation (1) we can find the area.

[tex] A = 24.74 cm*6.78 cm = 167.74 cm [/tex]

Therefore, the area of the plate is 167.78 centimeters.

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I hope it helps you!

Nothing accelerates a Projectile Horizontally during Motion...

Consequently

Horizontal Acceleration is Always Zero.

The Horizontal Velocity is always Constant too.

Only the vertical Velocity changes by -9.8ms-².

If this is so...

∆x = v'∆t + ½(0)(∆t)²

∆x = v't.

I'd go with Option D.

According to 1st equation of motion :

[tex]\boxed{ \boxed{v = u + at}}[/tex]

where,

let's solve for t

[tex] \hookrightarrow \: 17.63 = 0 + 2.13t[/tex]

[tex] \hookrightarrow \: t = \dfrac{17.63}{2.13} [/tex]

[tex] \hookrightarrow \: t = 8.276 \approx 8.28\: \: sec[/tex]

Answer:

to sell and to buy

Explanation:

measurement is a comparison between unknown quantity with a known quantity

Answer:

Volume of wood is 68-50 = 18 cm³

Explanation:

Answer:

m1 v1 = x-component of momentum   (towards origin)

m2 v2 = y-component of momentum  (towards origin where they collide)

m3 V cos 37 = m1 v1

m3 V sin 37 = m2 v2    components of momentum after collision

sin 37 / cos 37 = 2 v2/ v1

v2/ v1  = 1/2 * tan 37 = 1/2 * .754 = .377   for the ratio of speeds

Using m3 V cos 37 = m1 v1

3 * 2 cos 37 = 1 * v1

v1 = 4.79 m/s

m3 V sin 37 = m2 v2

v2 = 6 * sin 37 / 2 = 1.81 m/2

v2 / v1 = 1.81 / 4.79 = .378      same as ratio found above

Force applied will be equal to 40 Newtons .

Answer:

F=40N

Explanation:

As

P=[tex]\frac{F}{A}[/tex]   and

F=P*A

Putting the values

F=200*0.2

We have that the unit of the quantities are described

a.kg (m/s) (1/s)=Newton  

b. (kg/s) (m/s^2)=Newton

c. (kg/s) (m/s)^2=Newton  

d. (kg/s) (m/s)​=Newton

From the question we are give the units  

a.kg (m/s) (1/s)  

b. (kg/s) (m/s^2)  

c. (kg/s) (m/s)^2  

d. (kg/s) (m/s)​

a)  

Generally  

kg (m/s) (1/s) is Represented as Newton  

Where Newton is the unit Force and Weight

b)  

Generally  

(kg/s) (m/s) is the unit representation of Newton  

Therefore  

Newton

c)  

kg/s) (m/s) is the unit representation of Newton  

Therefore  

Newton

d)

Generally  

(kg/s) (m/s) is the unit representation of Newton  

Therefore  

Newton

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Answer:

340 Newtons of friction force

Explanation:

4.50 m/s² = 520N of Fn - ?N of Ff ÷ 40 Kg or [tex]\frac{520-x}{40}[/tex] = 4.50

40* 520 - x/40 = 4.50 *40

520-x = 180

520-x/520 = 180/520

x=340 N of Ff

Answer:

48

Explanation:

because teachers hand will be bigger than a student's hand. That's why teacher's hand acquire less surface area

Answer:

A stretched rubber band has potential energy

Answer:

elastic potential energy

Explanation:

Answer:

[tex]{ \boxed{ \sf{F = Bev}}}[/tex]

Explanation:

F » Force

B » Magnetic flux density

e » magnitude of charge

v » voltage

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S = (v-u)t/2

s = (14)1.4/2

s = 9.8m

The range of the shot will be "19.6 m". A complete solution is provided below.

The given values in the question are:

Horizontal velocity,

v = 14 m/s

Time,

t = 1.4 sec

Now,

The Range will be:

= [tex]Velocity\times Time[/tex]

By putting the given values, we get

= [tex]14\times 1.4[/tex]

= [tex]19.6 \ m[/tex]

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Answer:

Explanation:

time to travel first leg

D = Vt₁

t₁ = D/V

time to travel second leg.

at constant deceleration, the average velocity will be half of the original.

2D = (V/2)t₂

t₂ = 4D/V

t = t₁ + t₂ = 5D/V

Vavg = d/t = (D + 2D)/(5D/V) = (3D/5D)V = 0.6V

With the concept of kinematics we find the average speed is 0.6V

given parameters

   * initial velocity V

   * the distances in each part of the movements x₁ = D and x₂ = 2D

to find

  The average speed of the entire trajectory

In kinematics we analyze the motion of bodies, the average velocity is defined by

        [tex]V_{avg} = \frac{\Delta x}{\Delta t}[/tex]           1

where [tex]V_{avg}[/tex] is the average velocity, Δx and Δt are the variation of displacement and time in the interval

For this exercise we have two types of movement in the first part a uniform movement and in the second part an accelerated movement  let's solve each onaccelerated movement,e separately

1 Part. uniform motion

we look for the time

          V = [tex]\frac{x_1}{t_1}[/tex]

          t₁ = x₁ / V

          t₁ = [tex]\frac{D}{V}[/tex]

2 Part. Accelerated movement, let's start by looking for acceleration, they tell us that the body stops at the end of the interval so its velocity is zero v_f=0, the initial velocity is v₀ = V

           [tex]v_f^2 = v_o^2 - 2 \ a \ x_2[/tex]

           0 = v₀² - 2 a x₂

           a = [tex]\frac{v_o^2}{2x_2}[/tex]

we substitute

           a = [tex]\frac{V^2}{D}[/tex]

now we look for the time it takes to stop

          v = v₀ - a t₂

          0 = v₀ - a t₂

          t₂ = [tex]\frac{v_o}{a}[/tex]

we substitute

          t₂ = [tex]\frac{V}{\frac{V^2}{4D} }[/tex]

          t₂ = [tex]\frac{4D}{V}[/tex]4D / V

for the entire movement, the total displacement is

          Δx = x₁ + x₂

          Δx = D + 2D

          Δx = 3D

the total time is  

          Δt = t₁ + t₂

          Δt = [tex]\frac{D}{V} + \frac{4D}{V}[/tex]

          Δt = [tex]\frac{5D}{V}[/tex]

we substitute in equation 1 of average velocity

         [tex]V_{avg} = \frac{3D}{\frac{5D}{V} }[/tex]

         [tex]V_{avg} = \frac{3}{5} \ V[/tex]

         [tex]V_{avg } = 0.6 V[/tex]

With the use of the kinematics equations with constant acceleration we can find the average velocity of the body throughout the journey is 0.6V

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Answer:

A fertilized human egg cannot grow into a crocodile, duck or fish specifically because of: genetic code. is a stage in reproduction whereby an egg and a sperm fuse to create a single cell.

Explanation:

Because of ; Genetic Code

Given the particle's acceleration is

[tex]\vec a(t) = \left(3\dfrac{\rm m}{\mathrm s^2}\right)\vec\jmath[/tex]

with initial velocity

[tex]\vec v(0) = \left(5\dfrac{\rm m}{\rm s}\right)\,\vec\imath[/tex]

and starting at the origin, so that

[tex]\vec r(0) = \vec 0[/tex]

you can compute the velocity and position functions by applying the fundamental theorem of calculus:

[tex]\vec v(t) = \vec v(0) + \displaystyle \int_0^t \vec a(u)\,\mathrm du[/tex]

[tex]\vec r(t) = \vec r(0) + \displaystyle \int_0^t \vec v(u)\,\mathrm du[/tex]

We have

• velocity at time t :

[tex]\vec v(t) = \left(5\dfrac{\rm m}{\rm s}\right)\,\vec\imath + \displaystyle \int_0^t \left(3\dfrac{\rm m}{\mathrm s^2}\right)\,\vec\jmath\,\mathrm du \\\\ \vec v(t) = \left(5\dfrac{\rm m}{\rm s}\right)\,\vec\imath + \left(3\dfrac{\rm m}{\mathrm s^2}\right)t\,\vec\jmath \\\\ \boxed{\vec v(t) = \left(5\dfrac{\rm m}{\rm s}\right)\,\vec\imath + \left(3\dfrac{\rm m}{\mathrm s^2}\right)t\,\vec\jmath}[/tex]

• position at time t :

[tex]\vec r(t) = \displaystyle \int_0^t \left(\left(5\dfrac{\rm m}{\rm s}\right)\,\vec\imath + \left(3\dfrac{\rm m}{\mathrm s^2}\right)u\,\vec\jmath\right) \,\mathrm du \\\\ \boxed{\vec r(t) = \left(5\dfrac{\rm m}{\rm s}\right)t\,\vec\imath + \frac12 \left(3\frac{\rm m}{\mathrm s^2}\right)t^2\,\vec\jmath}[/tex]

How ??

Force:-

We know

According to newtons second law

[tex]\boxed{\sf Force=Mass\times Acceleration}[/tex]

[tex]\\ \sf\longmapsto Force=kgm/s^2[/tex]

We don't use it

[tex]\\ \sf\longmapsto Force=Newton(N)[/tex]

Hence its a derived unit.

Pressure:-

[tex]\\ \sf\longmapsto Pressure=\dfrac{Force}{Area}[/tex]

[tex]\\ \sf\longmapsto Pressure=\dfrac{N}{m^2}[/tex]

[tex]\\ \sf\longmapsto Pressure=Pascal(Pa)[/tex]

Hence its a derived unit

Answer:

1.71s

Explanation:

Acceleration = the change in velocity / the change in time

Or I can write it as

a = V2 - v1

- - - -----

t

V1 (initial velocity) = 7.5m/s

V2 ( final velocity) = 14.0m/s

a =3.8m/s^-2

Therefore

a= V2 - V1

- - - - - - - -

t

t = V2 - v1

- - - - - - -

a

t = 14 - 7.5

- - - - - -

3.8

t = 1.71s

Answer:

1

Explanation:

Answer:

Thermal energy adds up kinetic energy of all the molecules in it while temperature is the average kinetic energy of molecules

Answer:

5000 Pa

Explanation:

First collect the data you've been given already and make sure to convert into the right units;

Density = 1 g/cm³ ...... 1000 Kg/ m³

acceleration due to gravity = 10 m/s²

Height = 50 cm......0.5 m

after collecting the data, use the formula to solve

pressure = pgh

= 1000 × 10 × 0.5

= 5000 Pa

hope this helps

Answer:

972.5 mm

Explanation:

Since there are 10 millimeters in one centimeter, we move the decimal place to the right once to convert from cm to mm.

Displacement = (14-20) Km = -6 Km

The displacement of a car is -6 Km South