3 years ago

Objects accelerate because

Physics

1 answer:

erica [24]3 years ago

3 0

Friction I think soooooooooo

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Volume of an block is 5 cm3. If the density of the block is 250 g/cm3, what is the mass of the block ?

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Answer:

1.25kg

Explanation:

Simply multiply volume and density together

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3 years ago

What is the explanation for the fact that the desert sand is very hot in the day and very cool at night? 1. Sand reflects light

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3. Sand has a low specific heat compared to air

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3 years ago

How do you calculate the gravitational force on a rubber ball which has a mass of 50g

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P (gravitational force) = m (mass) x g
<=> P = 0.05 x 10
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3 years ago

A 180 g model airplane charged to 18 mC and traveling at 2.2 m/s passes within 8.6 cm of a wire, nearly parallel to its path, ca

viva [34]

Answer:

$a=0.2*10^{-5}g$

Explanation:

From the question we are told that:

Mass $M=180=>0.18kg$

Charge $Q=18mC=18*10^-^3C$

Velocity $v=2.2m/s$

Length of Wire $L=8.6cm=>0.086$

Current $I=30A$

Generally the equation for Magnetic Field of Wire B is mathematically given by

$B=\frac{\mu_0*I}{2\pi*l}$

$B=\frac{4*3.14*10^-^7*I}{2*3.14*8.6}$

$B=6.978*10^{-5}T$

Generally the equation for Force on the plane F is mathematically given by

$F=qvB$

Therefore

$ma=qvB$

$a=\frac{qvB}{m}$

$a=\frac{18*10^{-5}83.4*6.978*10^{-5}}{0.18kg}$

$a=2.37*10^{-5}$

Therefore in Terms of g's

$a=\frac{2.37*10^{-5}}{9.8}$

$a=0.2*10^{-5}g$

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2 years ago

What is a appropriately?????

telo118 [61]

Answer:

In a way that is suitable or right for a particular situation or occasion: She didn't think we were appropriately dressed for a wedding. Business leaders who acted appropriately were widely praised. See. appropriate.

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2 years ago