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4 years ago

14

WallyGPX accelerates from 0 m/s to 8 m/s in 3 seconds. What is his acceleration? Is this acceleration higher than that of a car

which accelerates from 0 to 30 m/s in 8 seconds?

1 answer:

olga nikolaevna [1]4 years ago

4 0

My Phone is +2348181686682

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Tell something about the series of miraculous tales of ladybug and catnoir

aksik [14]

Answer:Coccinellidae is a widespread family of small beetles ranging in size from 0.8 to 18 mm. The family is commonly known as ladybugs in North America and ladybirds in Great Britain and other parts of the English-speaking world.

Explanation: Uh yea.

8 0

3 years ago

Read 2 more answers

One method for determining the amount of corn in early Native American diets is the stable isotope ratio analysis (SIRA) techniq

Iteru [2.4K]

Answer:

$0.0084575\ \text{T}$

$0.272\ \text{m}$

2.2 cm easily observable

Explanation:

$m_1$ = Mass of 12 C = $1.99\times 10^{-26}\ \text{kg}$

$m_2$ = Mass of 13 C = $2.16\times 10^{-26}\ \text{kg}$

$r_1$ = Radius of 12 C = $\dfrac{25}{2}=12.5\ \text{cm}$

B = Magnetic field

v = Velocity of atom = 8.5 km/s

$r_2$ = Radius of 13 C

The force balance of the system is

$qvB=\dfrac{m_1v^2}{r}\\\Rightarrow B=\dfrac{m_1v}{rq}\\\Rightarrow B=\dfrac{1.99\times 10^{-26}\times 8500}{12.5\times 10^{-2}\times 1.6\times 10^{-19}}\\\Rightarrow B=0.0084575\ \text{T}$

The required magnetic field is $0.0084575\ \text{T}$

Radius is given by

$r=\dfrac{mv}{qB}$

$r\propto m$

So

$\dfrac{r_2}{r_1}=\dfrac{m_2}{m_1}\\\Rightarrow r_2=\dfrac{m_2}{m_1}r_1\\\Rightarrow r_2=\dfrac{2.16\times 10^{-26}}{1.99\times 10^{-26}}\times 12.5\times 10^{-2}\\\Rightarrow r_2=0.136\ \text{m}$

The required diameter is $2\times 0.136=0.272\ \text{m}$

Separation is given by

$2(r_2-r_1)=2(0.136-0.125)=0.022\ \text{m}$

The distance of separation is 2.2 cm which is easily observable.

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3 years ago

How much heat is absorbed by a 27g iron skillet when its temperature rises from 13oC to 23oC?

solniwko [45]

The equation for heat would be q = m*Delta T* S

Where q = the heat absorbed in joules
m = mass
Delta T = change in temperature
s = specific heat capacity of the material

for iron s = 0.450

Delta T = 23 - 13 = 10 degrees Celsius

m is given as 27 grams.

q = 27 * 10 * 0.450 = 121.5 joules

You may need to round the answer depending on what the teacher is looking for.

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4 years ago

A positive charge is placed midway between two equal negative charges. what is the direction of the total force on the positive

iragen [17]

The total force is the vector sum of the individual forces. The force from either electron has the same magnitude at the midpoint, but the directions of the forces are opposite, so the sum of the two forces is zero. I hope this helps! Thanks

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3 years ago

A hot air balloon moves vertically upwards at constant velocity of 1.5 m s−1 . A person standing on the ground below throws a ba

serg [7]

Answer:

idk srry

Explanation:

i wish I could help you out

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3 years ago