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Physics

2 answers:

MrRa [10]3 years ago

7 0

BURGER KING, MCDONALDS, PIZZA, CHIPOTLE

Anon25 [30]3 years ago

5 0

Relations
with respect to

Explanation:

Laws of Newton are

An object remains at its position of rest or motion until or unless any external force applied.
Force=Mass×Acceleration.
The initial momentum and final momentum remains same.

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2. When a fire truck moves away from you, you hear the pitch of the siren go down. This is

Yanka [14]

the Doppler effect. (I don't know how to explain it lol)

8 0

3 years ago

Read 2 more answers

2 Magnetism comes from the word

AysviL [449]

Answer:

A Magnesia

Explanation:

The word magnetism comes from the word Magnesia, which is the name for a region in Asia Minor, where fragments of Fe3O4 ore (magnetite) were found, which attracts other metal objects.

Magnetism is a physical phenomenon by which we describe the attractive or repulsive force between materials.

This phenomenon has been known for thousands of years.

4 0

2 years ago

A delivery truck leaves a warehouse and travels 2.60 km north. The truck makes a left turn and travels 1.25 km west before makin

yulyashka [42]

Answer:

4.19 km and 107.35 degrees north of east

Explanation:

So in the end, the truck is (2.6 + 1.4 = 4km) north and 1.25 km west from the warehouse. We can use the Pythagorean formula to calculate the magnitude and direction α of the truck displacement from the warehouse:

$s = \sqrt{s_n^2 + s_w^2} = \sqrt{4^2 + 1.25^2} = \sqrt{16 + 1.5625} = \sqrt{17.5625} = 4.19$ km

$tan\alpha = \frac{s_n}{s_w} = \frac{4}{1.25} = 3.2$

$\alpha = tan^{-1}3.2 = 1.27 rad \approx 72.65 degrees$ north or west or (180 - 72.65) = 107.35 degrees north of east

3 0

3 years ago

What type of organization is used in a paragraph that lists similarities between two objects?

alekssr [168]

A. Comparison

What type of organization is used in a paragraph that lists similarities between two objects? Comparison

NOT:
B. Contrast
C. Chronological order
D. Cause and effect

3 0

3 years ago

If Frequency F, velocity v, and density D are considered fundamental units, the dimensional formula for momentum will be :

gizmo_the_mogwai [7]

Let's see

Momentum be P

$\\ \rm\Rrightarrow P=[Frequency]^a[velocity]^b[Density]^c$