3 years ago

Mass is a measure of the quantity of matter in an object. a. True b. False

Physics

1 answer:

marishachu [46]3 years ago

3 0

A. True

It is true that mass is a measure of the quantity of matter in an object.

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A spherical shell of radius 9.0 cm carries a uniform surface charge density σ= 9.0 nC/m2. The electric field at r= 9.1 cm is app

maria [59]

Answer:

995.12 N/C

Explanation:

R = 9 cm = 0.09 m

σ = 9 nC/m^2 = 9 x 10^-9 C/m^2

r = 9.1 cm = 0.091 m

q = σ x 4π R² = 9 x 10^-9 x 4 x 3.14 x 0.09 x 0.09 = 9.156 x 10^-10 C

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E = ( 9 x 10^9 x 9.156 x 10^-10) / (0.091 x 0.091)

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3 years ago

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Answer:

Technician A

Explanation:

It is seen that a tire pressure will increase or decrease 1 psi for each $10^{\circ} F$ change in temperature.

For Technician B vehicle pressure should not be adjusted after tire has been warmed as the warm air may increase the pressure but it will be auto adjusted as the temperature falls to normal .

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3 years ago

Please help!

andrew-mc [135]

Answer:

V=W/Q

107V= W/17C

= We= 107×17 J

= 1819 J

Explanation:

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2 years ago

A bulldozer pushes on a boulder with a force of 600 N. It accelerates at 3 m/s. Find mass.

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Answer:

Formula for mass: m=f/a

m=600/3

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Explanation:

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2 years ago

What is the speed of light in meters per second?

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The answer is approximately 2.998e+8

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3 years ago