4 years ago

Which of the following is not a requirement of practical fuel

Physics

1 answer:

Diano4ka-milaya [45]4 years ago

4 0

Nothing on that list of choices is a requirement.

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A circuit was set up as shown in the diagram . The tgree resistors are identical

wolverine [178]

6 / 3 = 2
So the reading on the voltmeter will be 2.

7 0

3 years ago

An elevator accelerates upward at 1.2 m/s 2 . the acceleration of gravity is 9.8 m/s 2 . what is the upward force exerted by the

Marysya12 [62]

We can find the force by using the following formula;
N = ma + mg
Fa = ma = 76 x 1.2 = 91.2
Fg = mg = 76 x 9.8 = 744.8
N = 91.2 + 744.8 = 836
So, the force is 836 N.

8 0

4 years ago

we measure a voltage difference of 5.0 V between two points on the conducting paper between two parallel conducting electrodes.

Alex17521 [72]

Answer:

E=1824.81 V/m

Explanation:

Given that

Voltage difference = 5 V

Distance ,D= 3 mm

θ = 24°

As we know that electric filed given as

$E=\dfrac{V}{d}$

Given that D is 24° with respect to the perpendicular to the electrodes.So we have to take cos component of D.

d= D cosθ

d= 3 cos24°

d = 2.74 mm

$E=\dfrac{V}{d}$

$E=\dfrac{5}{2.74\times 10^{-3}}$

E=1824.81 V/m

8 0

3 years ago

A thin-walled, hollow sphere of mass M rolls without slipping down a ramp that is inclined at an angle β to the horizontal. Find

Reil [10]

Answer:

Explanation:

Given

inclination $=\beta$

Assuming radius of sphere is r

Now from Free Body Diagram

$Mg\sin \theta -f_r=Ma$

where $f_r=friction\ force$

$a=acceleration\ of\ system$

Now friction will Provide the Torque

$f_r\times r=I\cdot \alpha$

where $I=moment\ of\ inertia$

$\alpha =angular\ acceleration$

$f_r\times r=\frac{2}{3}Mr^2\times \frac{a}{r}$

in pure rolling $a=\alpha r$

$f_r=\frac{2}{3}Ma$

$mg\sin \beta -\frac{2}{3}Ma=Ma$

$Mg\sin \beta =\frac{5}{3}Ma$

$a=\frac{3g\sin \beta }{5}$

5 0

4 years ago

Xander reached a final velocity of 4.5 m/s for 3.5 seconds. Finley reached a final velocity of 3.6 m/s for 4.2 seconds. Max reac

ANEK [815]

Answer:

Finley, Xander and Max

Explanation:

v = Final velocity

t = Time

u = Initial velocity = 0

a = Acceleration

From kinematic equations we get

$v=u+at\\\Rightarrow a=\dfrac{v-u}{t}=\dfrac{v-0}{t}\\\Rightarrow a=\dfrac{v}{t}$

Xander

v = 4.5 m/s, t = 3.5 s

$a=\dfrac{4.5}{3.5}\\\Rightarrow a=1.29\ \text{m/s}^2$

Finley

v = 3.6 m/s, t = 4.2 s

$a=\dfrac{3.6}{4.2}\\\Rightarrow a=0.86\ \text{m/s}^2$

Max

v = 7.3 m/s, t = 1.2 s

$a=\dfrac{7.3}{1.2}\\\Rightarrow a=6.083\ \text{m/s}^2$

The required list is Finley, Xander and Max.

6 0

3 years ago

Read 2 more answers