The world's longest continuous mountain ridge is under the ocean.

The equations below show the total amount of water in gallons, y, that has flowed through two different types of shower heads af

Dennis_Churaev [7]

Answer:

The correct option is option (B)

Explanation:

Given that,

The equation below show the total amount of water in gallons, y that has flowed through two different types of showers heads after x minute.

Type A: y =1.25 x

Type B: y= 2.50 x

So,

The amount of water per minute is $=\frac{\textrm{The amount of water}}{\textrm{Time}}$

For type A

y =1.25 x

$\Rightarrow \frac{y}{x}=1.25$

For type B

y =2.50 x

$\Rightarrow \frac{y}{x}=2.50$

$\Rightarrow \frac{y}{x}=2\times 1.25$

The amount of water flowed through Type B is twice that flowed trough type A per minute.

4 0

3 years ago

She wants to calculate the density of one of these cubes. Blessy needs to measure two physical quantities.

Korvikt [17]

Answer:

Im a filipino kid ya,know

6 0

3 years ago

A car’s velocity as a function of time is given by Vx (t) = α.t + β.t 2 , where α= 3m/s and β= 0.1m/s 3 . Calculate the average

s344n2d4d5 [400]

The definition of average acceleration allows to find the result for the average acceleration in the given time interval is:

$a_{average}= 1.5 \ \frac{m}{s^2}$

Instantaneous acceleration is defined as the derivative of velocity with respect to time.

a = $\frac{dv}{dt}$

Where a is the acceleration, v the velocity and t the time.

They indicate that the speed of the car is given by the relation.

v = α t + β t²

With α = 3 m / s and β = 0.1 m / s³

Let's make the derivative.

a = α + 2β t

Let's substitute

a = 3 + 2 0.1 t

Average acceleration is the change in velocity in the time interval.

$a_{average} = \frac{\Delta v}{\Delta t }$

Let's find the velocity at the indicated time.

For t = 5 s

v₅ = 3 + 0.1 5²

v₅ = 5.5 m / s

For t = 10 s

v₁₀ = 3 + 0.1 10²

v₁₀ = 13 m / s

Let's calculate the average acceleration.

$a_{average} = \frac{13 - 5.5 }{ 10 - 5 }\\$

$a_{average}= 1.5 \ m/s^2$

In conclusion using the definition of mean acceleration we can find the result for the mean acceleration in the given time interval is:

$a_{average} =$ 1.5 m / s²

Learn more here: brainly.com/question/20057878

7 0

3 years ago

Driving on asphalt roads entails very little rolling resistance, so most of the energy of the engine goes to overcoming air resi

trapecia [35]

Answer:

a) $F_p=882N$

b) $P=4410W$

c) $V_p'=24135$ , $n=15.2\%$

Explanation:

From the question we are told that:

Mass $M=1500kg$

Velocity $v=4.9m/s$

Coefficient of Rolling Friction $\mu=0.06$

a)

Generally the equation for The Propulsion Force is mathematically given by

$F_p=\mu*mg$

$F_p=0.06*1500*9.81$

$F_p=882N$

b)

Therefore Power Required at

$V_p=5.0m/s$

$P=F_p*V_p$

$P=882*5$

$P=4410W$

c)

$V_p' =15mpg$

$V_p'=15*\frac{1609}$

$V_p'=24135$

Generally the equation for Work-done is mathematically given by

$W=F_p*V_p'$

$W=882*15*1609$

$W=2.13*10^7$

Therefore

Efficiency

$n=\frac{W}{E}*100\%$

Since

Energy in one gallon of gas is

$E=1.4*10^8J$

Therefore

$n=\frac{2.1*10^7}{1.4*10^8}*100\%$

$n=15.2\%$

7 0

3 years ago

Why does glass expands before water?

shtirl [24]

Because glass have molecules that are more closely packed together than water therefore when gaining heat the glass would gain heat faster and therefore exapand faster.

6 0

3 years ago