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3 years ago

A ball rolls along the floor with a constant velocity of 6m/s. How far will it go in 10 sec?

Physics

1 answer:

Nady [450]3 years ago

5 0

Answer:

60m

Explanation:

X = V × t

X = 6 × 10 = 60m

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The answer is,

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3 years ago

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The electric potential is 40 V at point A near a uniformly charged sphere. At point B, 2.0 μm farther away from the sphere, the

KatRina [158]

Answer:

Explanation:

Potential at a point near a charge = Q / 4πε₀ R

where Q is charge given , R is distance of point from the charge .

Q / 4πε₀ R = 40

Electric field E at A = -dV / dR

= .16 x 10⁻³ / 2 x 10⁻⁶

= .08 x 10³

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80 = Q / 4πε₀ R x R

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3 years ago

Select the correct expression that gives the block's acceleration at a displacement x from the equilibrium position. Note that x

Tcecarenko [31]

Answer:

the correct is d

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Explanation:

I got it correct

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4 years ago

Ohms law? explanation.

shusha [124]

Answer:

$\boxed{ \bold{ \sf{see \: below}}}$

Explanation:

$\boxed{ \bold{ \underline{ \huge{ \boxed{ \sf{ohm's \: law}}}}}}$

The relation between current through a metallic conductor and potential difference across its ends was studied systematically by a German physicist , George Simon Ohm in 1826 AD . This relation is now known as Ohm's law. It states that the electric current passing through a conductor is directly proportional to the potential difference across its two ends at a constant physical condition [ Temperature , cross - sectional area , length , nature of material etc ]

Hope I helped!

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4 years ago

Predict the gravitational force between two 15-kg balls whose centers are 35 m apart.

ArbitrLikvidat [17]

$F=G\frac{m_1-m_2}{r^2}$

$=\frac{(6.67\times10^{-11}N*m/kg^2)(15kg) }{(0.35m)^2}$

$=1.2\times10^{-7} N$

Because the weight of one ball is mg = 147 N, the gravitational force between the two balls is $1.2\times10^{-7}N$ or $8.4*10^3$ parts per billion of the weight.

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2 years ago