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4 years ago

1) A common surface feature on the terrestrial planets is

1 answer:

5 0

<span>1. A common surface features on the terrestrial planets is ___________.

Answer: A. Mountains and B. Volcanoes

2. Which scientist determined the planet's orbital shapes and sizes by triangulation?

Answer: C. Kepler

3. Scientists used the Keck telescope to learn more about the ______ located at the center of the Milky Way galaxy

Answer: A. star cluster

4. When the solar system formed, planetesimals collided and merged to form

Answer: A. Protoplanets

5) How is the heliocentric model of the solar system different than the geocentric model?

Answer: D. The heliocentric model has planets going around the sun; the geocentric model has planets going around Earth.</span>

You might be interested in

What kind of chemical reaction does the chemical equation sodium + chlorine sodium chloride represents

Pavlova-9 [17]

It represents combustion.

5 0

3 years ago

WILL GIVE 15 PTS.

kompoz [17]

Answer:

polymerization

8 0

3 years ago

A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours. What is

Andreas93 [3]

Answer:

51 mph

Explanation:

Given: A certain aircraft can fly 612 miles with the wind in 3 hours and travel the same distance against the wind in 6 hours.

Formula: $Speed=\dfrac{Distance}{Time}$

Let speed of aircraft be x mph and speed of wind y mph

Aircraft along wind:

Actual speed of aircraft = x + y

Time taken = 3 hours

Distance = 612 miles

$\therefore x+y=\dfrac{612}{3}$

$x+y=204----------(1)$

Aircraft against wind:

Actual speed of aircraft = x - y

Time taken = 6 hours

Distance = 612 miles

$\therefore x-y=\dfrac{612}{6}$

$x-y=102----------(2)$

By solving equation (1) and equation (2) and we get

x = 153 mph

y = 51 mph

Hence, The speed of wind will be 51 mph

6 0

3 years ago

Transcranial magnetic stimulation (TMS) is a noninvasive method for studying brain function, and possibly for treatment as well.

lubasha [3.4K]

Answer:

525 V

Explanation:

A = Area = $1.75\times 10^{-2}\ m^2$

$\dfrac{dB}{dt}$ = Rate of change of magnetic field = $3\times 10^4\ T/s$ (assumed)

Induced electromotive force is given by

$E=A\dfrac{dB}{dt}\\\Rightarrow E=1.75\times 10^{-2}\times 3\times 10^{4}\\\Rightarrow E=525\ V$

The induced electromotive force is 525 V

3 0

3 years ago

A basketball is thrown horizontally with an initial speed of

storchak [24]

Answer:

1.35 m

Explanation:

Taking down to be positive, given:

Δx = Δy / tan 30.0º

v₀ₓ = 4.50 m/s

v₀ᵧ = 0 m/s

aₓ = 0 m/s²

aᵧ = 10 m/s²

Find: Δy

First, find the time it takes to land in terms of Δy.

Δy = v₀ t + ½ at²

Δy = (0 m/s) t + ½ (10 m/s) t²

Δy = 5t²

Next, find Δx in terms of t.

Δx = v₀ t + ½ at²

Δx = (4.50 m/s) t + ½ (0 m/s) t²

Δx = 4.50t

Substitute:

Δy = 5 (Δx / 4.50)²

20.25 Δy = 5 (Δx)²

4.05 Δy = (Δx)²

4.05 Δy = (Δy / tan 30.0º)²

4.05 Δy = 3 (Δy)²

1.35 = Δy

The basketball was thrown from an initial height of 1.35 m.

Graph: desmos.com/calculator/ujuzdo9xpr

8 0

3 years ago