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3 years ago

A truck headed east. Has a initial velocity of 6 m/s it accelerates at 2 m/sfor 12 seconds what is the distance

Physics

1 answer:

lawyer [7]3 years ago

6 0

If im not mistaken the truck traveled 216 meters.

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(BRAINLIEST!) Does more momentum mean more force?

evablogger [386]

Answer:

no.

Explanation:

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3 years ago

The wavelength and energy of a wave are inversely proportional. Based on this, which wave listed would have the LOWEST energy.

spayn [35]

D because it has the lowest wavelength, meaning the wave is the longest. Its crest are more spaced out creating lower energy. The smaller distance between the crests equals the higher the sound. Creating higher energy.

I am 95% sure this is right. Very sorry if it isn't.
Hope it helps. ;3

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4 years ago

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4 years ago

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Suppose humans have weights which are normally distributed with mean 170 lbs and SD 50 lbs. If 400 humans are selected at random

MrRa [10]

Answer:

$P(x< 175)= 0.9772$

Explanation:

given,

mean weight of human = μ = 170 lbs

standard deviation = SD = 50 lbs

N = 400 humans

By using central limit theorem,

P (x< 175)

$P(x< 175)= P(z$

$P (x< 175)= P(z$

using z-table

$P (x< 175)= 0.9772$

hence, the probability that total weight is less tan 175 lbs is equal to

$P(x< 175)= 0.9772$

7 0

3 years ago

The distance between two parallel wires carrying currents of 10 A and 20 A is 10 cm. Determine the magnitude and direction of th

Marianna [84]

Explanation:

It is given that,

Current in wire 1, I₁ = 10 A

Current in wire 2, I₂ = 20 A

Distance between wires, d = 10 cm = 0.1 m

Force per unit length is given by :

$\dfrac{F}{l}=\dfrac{\mu_oI_1I_2}{2\pi r}$

$\dfrac{F}{l}=\dfrac{4\pi \times 10^{-7}\times 10\times 20}{2\pi \times 0.1}$

$\dfrac{F}{l}=0.0004\ N/m$

$\dfrac{F}{l}=4\times 10^{-4}\ N/m$

So, the magnetic force acting per unit length of the wires $4\times 10^{-4}\ N/m$ . Since, the current is in same direction. So, the force is attractive in nature.

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3 years ago