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3 years ago

How many millimeters are in 1.12 feet?

Physics

2 answers:

yuradex [85]3 years ago

7 0

Answer:

341.376

Explanation:

First you have to convert ft. to in.

$\frac{1.12ft}{1} (\frac{12in}{1ft} )=13.44in$

Then convert in. to cm.

$\frac{13.44in}{1}(\frac{2.54cm}{1in} )=34.1376cm$

10cm=1mm

34.1376(10)

Law Incorporation [45]3 years ago

6 0

Answer:

341.376 millimeters

Explanation:

I guess that is right

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The friends are ready to try a problem. A battery has an emf of 12.0 V and an internal resistance of 0.05 Ω. Its terminals are c

Zanzabum

Answer:

Terminal voltage = 11.5 V

Power across load = 119.7 W

Power across internal resistance = 5.4 W

Power delivered by battery = 125.2 W

Explanation:

The current in the circuit is given by

$I=\dfrac{E}{R+r}$

where E is the emf of the battery, R us the load resistance and r is the internal resistance.

$I=\dfrac{12}{1.1+0.05} = 10.43 \text{ A}$

The terminal voltage is the potential difference across the load resistor.

V = I × R = 10.43 A × 1.1 Ω = 11.5 V

The power across any resistance is given by $I^2R$

For the load resistor,

$P_L=10.43^2\times1.1 = 119.7 \text{ W}$

For the internal resistance,

$P_r=10.43^2\times0.05= 5.4\text{ W}$

The power delivered by the battery is

$P = P_L + P_r = 119.7 + 5.4 = 124.1 \text{ W}$

This could also be found by

$P = IE = 10.34\times12 = 125.2 \text{ W}$

The discrepancy in both answers is due to the approximations. The second answer is better.

4 0

4 years ago

A proton moves along the x-axis with vx=1.0×107m/s. As it passes the origin, what are the strength and direction of the magnetic

Sunny_sXe [5.5K]

Answer:

Magnetic field will be ZERO at the given position

Explanation:

As we know that the magnetic field due to moving charge is given as

$B = \frac{\mu_0 qv sin\theta}{4\pi r^2}$

so here we know that for the direction of magnetic field we will use

$\hat B = \hat v \times \hat r$

so we have

$\hat B = \hat i \times (\hat i + 0\hat j + 0\hat k)$

so magnetic field must be ZERO

So whenever charge is moving along the same direction where the position vector is given then magnetic field will be zero

3 0

3 years ago

True or false

madam [21]

That's true, you can't get any more precise than what's measured to the least precision.

8 0

3 years ago

A. According to theory, the period T of a simple pendulum is T = 2????√ ???? ???? a. If ???? is measured as ???? = 1.40 ± 0.01 m

salantis [7]

Answer:

a) T = (2,375 ± 0.008) s , b) When comparing this interval with the experimental value we see that it is within the possible theoretical values.

Explanation:

a) The period of a simple pendulum is

T = 2π √ L / g

Let's calculate

T = 2π √1.40 / 9.8

T = 2.3748 s

The uncertainty of the period is

ΔT = dT / dL ΔL

ΔT = 2π ½ √g/L 1/g ΔL

ΔT = π/g √g/L ΔL

ΔT = π/9.8 √9.8/1.4 0.01

ΔT = 0.008 s

The result for the period is

T = (2,375 ± 0.008) s

b) the experimental measure was T = 2.39 s ± 0.01 s

The theoretical value is comprised in a range of [2,367, 2,387] when we approximate this measure according to the significant figures the interval remains [2,37, 2,39].

When comparing this interval with the experimental value we see that it is within the possible theoretical values.

6 0

4 years ago

Electrospray ionization mass spectroscopy often results in analyte molecules fragmenting.

guajiro [1.7K]

Electrospray ionization mass spectroscopy often results in analyte molecules fragmenting

FALSE

<u>Electrospray ionization mass spectroscopy</u>

It is a technique using electrospray to generate ions for mass spectrometry by applying high voltage to the liquid.

Electrospray ionization is a soft ionization technique.

It is used for production of gas phase ions.

The process of Electrospray ionization mass spectroscopy

1. dispersal of a fine spray charge droplets

2. solvent evaporation

3. ion ejection from highly charged droplets

To know more about Electrospray ionization mass spectroscopy

brainly.com/question/4348492

#SPJ4

5 0

2 years ago