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3 years ago

Temperature and volume are directly or inversely

Physics

2 answers:

Artyom0805 [142]3 years ago

5 0

Answer:

inversely

Explanation:

Pachacha [2.7K]3 years ago

4 0

Answer:

inversely

Explanation:

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What is the main difference between velocity and speed?

Marina86 [1]

Speed is scalar, meaning it's only going to be like 74 mph, doesn't matter which direction. Velocity is a vector, meaning it has direction. You can go -74mph when talking about velocity, not speed.

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2 years ago

Lionel makes a graphic organizer to compare the electric field around a positive charge with the electric field around a negativ

krek1111 [17]

X- points away from the charge
y- points in the direction of the force on the positive charge
z- points toward the charge

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2 years ago

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An apple is dropped from the top of a building and hits the ground 2 seconds later. How tall is the building?

Ket [755]

Hello! :)

$\large\boxed{19.6 m}$

Use the kinematic equation below to solve for the height of the building:

$d = \frac{1}{2} at^{2}$

Where:

d = distance, or height of the building (m)

a = acceleration due to gravity (9.8 m/s²)

t = time (seconds)

Plug in the given values into the equation:

$d = \frac{1}{2} (9.8)2^{2}\\\\d = \frac{1}{2} (39.2)\\\\d = 19.6 m$

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2 years ago

A projectile, fired with unknown initial velocity, lands 20sec later on side of hill, 3000m away horizontally and 450m verticall

lorasvet [3.4K]

Explanation:

Given:

t = 20 seconds

x = 3000 m

y = 450 m

a) To find the vertical component of the initial velocity $v_{0y}$ , we can use the equation

$y = v_{0y}t - \frac{1}{2}gt^2$

Solving for $v_{0y}$ ,

$v_{0y} = \dfrac{y + \frac{1}{2}gt^2}{t}$

$\:\:\:\:\:\:\:=\dfrac{(450\:\text{m}) + \frac{1}{2}(9.8\:\text{m/s}^2)(20\:\text{s})^2}{(20\:\text{s})}$

$\:\:\:\:\:\:\:=120.5\:\text{m/s}$

b) We can solve for the horizontal component of the velocity $v_{0x}$ as

$x = v_{0x}t \Rightarrow v_{0x} = \dfrac{x}{t} = \dfrac{3000\:\text{m}}{20\:\text{s}}$

$v_{0x} = 150\:\text{m/s}$

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3 years ago

Why a crystal of potassium chloride has a definite shape<br>

dolphi86 [110]

The crystal of potassium chloride has a definite shape because it consists of particles that are held in fixed positions.

Ionic solids are crystalline in nature. This means that the ions that compose them are arranged in an orderly manner to form a crystal lattice.

This crystal lattice is composed of a regular repeating pattern called the unit cell. The ions in these unit cells are held together by strong electrostatic forces.

Hence, the crystal of potassium chloride has a definite shape because it consists of particles that are held in fixed positions.

Learn more: brainly.com/question/488789

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3 years ago