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3 years ago

What does it mean if an AA battery has 1.5V written on the side of it?

Physics

2 answers:

Alenkasestr [34]3 years ago

6 0

1.5V stands for the voltage of the battery.

Pie3 years ago

3 0

It means that the potential difference between the metal can and the little button on top of the battery is about 1.5 volts.

That's strictly the result of the chemicals in the battery, and has nothing to do with its size. If a battery as big as a house has the same chemistry inside that the AA has, the big one will also have 1.5 volts between its terminals. (But it'll run your flashlight much longer than the AA will, before it runs down.)

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You are part of a mission to Mars and have been assigned the task of designing balloons for the purpose of carrying scientific i

melomori [17]

Answer:

The radius of the balloon is R= 0.974 m

Explanation:

Atmospheric density on the surface of mars ρ = 0.0154 kg/m³

Mass density of balloon σ 5 gm/m² = 0.005 kg/m²

Total mass of balloon M = density of balloon* surface area

The balloon is considered as sphere

Surface area of sphere is given by 4π R²

Mass of balloon is M =σ *4πR²

M= (0.005 kg/m²)*(4π R²)

Volume of balloon is given by $\frac{4}{3}$ πR³

Density of atmosphere of mass is given by

ρ = Mass of balloon/volume of balloon

=(0.005 kg/m²)*(4π R²)/ $\frac{4}{3}$ πR³

Re arranging R

R = $\frac{3*0.005 kg/m²}{ 0.0154 kg/m³}$

R = 0.974 m

The radius of the balloon is R= 0.974 m

3 0

4 years ago

A 10 kg box slides down a lane inclined at an angle θ = 30 . The plane has a friction of coefficient 0.1. The box starts from th

g100num [7]

Answer:

The distance the box traveled down the plane is 19.28 m

Explanation:

The angle of repose, α, is given by the relation;

tan⁻¹(μ) = α

tan⁻¹(0.1) = 5.7°

Therefore, we have;

M·g·sin(θ) - μ·N = M·a

Where:

M = Mass of the box = 10 kg

g = Acceleration due to gravity = 9.81 m/s²

θ = Angle of inclination of the plane = 30°°

μ = Coefficient of friction = 0.1

a = Acceleration of the box along the incline plane

N = Normal force due to the weight of the box = M·g·cos(θ)

10 × 9.81 × sin30 - 0.1 × 9.81 × cos(30) = 10 × a

48.2 = 10 ×a

a = 48.2/10 = 4.82 m/s²

The distance, s, traveled by the box is given by the relation;

s = u·t + 1/2×a·t²

Where:

u = Initial velocity = 0 m/s

t = Time of motion = 2.0 s

∴ s = 0×2 + 1/2 × 4.8 × 2² = 19.28 m

The box traveled 19.28 m down the plane.

6 0

3 years ago

When you squeeze together the coils of a spring and then release them, you are creating a ____ wave? transverse compressional wa

mihalych1998 [28]

Answer:

Hey there!

Because you are compressing the spring, these are compressional waves.

Let me know if this helps :)

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3 years ago

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amid [387]

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In the circuit diagram, what does the symbol made of two Long lines and two short lines with a positive and a negative sign at e

Licemer1 [7]

That symbol represents a source of DC, usually a battery.

The zig-zag line represents a resistor, and the two little circles
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