All categories

3 years ago

Which movement of the Earth cause day and night?

2 answers:

5 0

The Earth's rotation does, like a basketball spinning
on the tip of Kobe Bryant's finger.

Since the Earth is somewhat bigger than a basketball,
it takes almost 24 hours to do one complete spin.

The sun can only light up 50% of the Earth at a time.
As the Earth spins, it moves you and me in and out
of the lighted half. Any time we're not in the lighted
half, we describe our situation as a "night" status.

Leokris [45]3 years ago

3 0

Answer:

The sun can only light up 50% of the Earth at a time. As the Earth spins, it moves you and me in and outof the lighted half. Any time we're not in the lightedhalf, we describe our situation as a "night" status.

Explanation:

You might be interested in

Help with 1 2 and 3 please

geniusboy [140]

1. Amperes, is the SI unit (also a fundamental unit) responsible for current.

2. $I = \frac{q}{t}$ Δq over Δt technically

Rearrange for Δq

I x Δt = Δq

1.5mA x 5 = Δq

Δq = 0.0075

Divide this by the fundamental charge "e"

Electrons: 0.0075 / 1.60 x 10^-19

Electrons: 4.6875 x 10^16 or 4.7 x 10^16

3. So we know that the end resistances will be equal so:

ρ = RA/L

ρL = RA

ρL/A = R

Now we can set up two equations one for the resistance of the aluminum bar and one for the copper: Where 1 represents aluminum and 2 represents copper

$\frac{p1L1}{A1} = \frac{p2L2}{A2}\\$

We are looking for L2 so we can isolate using algebra to get:

$\frac{A2(\frac{P1L1}{A1}) }{P2} = L2$

If you fill in those values you get 0.0205

or 2.05 cm

6 0

3 years ago

The amplitude of a sound is the A. frequency of the sound. B. magnitude of displacement of a sound pressure wave. C. psychologic

AlladinOne [14]

Answer:

Option B. magnitude of displacement of a sound pressure wave

Explanation:

Amplitude is simply the maximum displacement of a wave from its mean position.

6 0

4 years ago

Read 2 more answers

If you were creating a presentation that would cover the different types of muscles in the body, which groups of muscle would yo

diamong [38]

It would be best to cover the cardiac, smooth, and skeletal muscles! =)

6 0

3 years ago

Read 2 more answers

In a given chemical reaction, the energy of the products is kess than the energy of the reactants. Which statement is true for t

deff fn [24]

Answer: Released

Explanation: Energy is released in this reaction possibly in the form of heat thus it is an exergonic and or exothermic reaction.

5 0

3 years ago

An object moving at 36 km/h reduces its speed to 18 km/h in 2sec. If the mass of the object is 20 kg, find the average force act

laiz [17]

Answer:

-50 N

Explanation:

Givens:

V_i = 36 km/h

V_f = 18 km/h

t = 2 s

m = 20 kg

First we have to convert our km/h into m/s:

(36 km*(1000 m/1 km)) / (60 min *(60 s/1 min)) = 10 m/s

(18 km*(1000 m/1 km)) / (60 min *(60 s/1 min)) = 5 m/s

a = (V_f - V_i)/t

a = (5 m/s - 10 m/s) / 2 s

a = -2.5 m/s^2

F = m(a)

F = 20 kg(-2.5 m/s^2)

F = -50 N

It's a negative force meaning its acting on it opposite its current direction of movement.

7 0

3 years ago