Ask question

Ask question

All categories

Paladinen [302]

2 years ago

7

The telescope that allowed astronomers to discover most of the planets found with the transit method was called:.

1 answer:

kvasek [131]2 years ago

4 0

Answer:This quest took a huge leap forward in 2000 when Hubble studied the exoplanet HD 209458 b, the first extrasolar planet known to make “transits” across the face of its star. Hubble became the first telescope to directly detect an exoplanet's atmosphere and survey its makeup.

Explanation:

You might be interested in

The department of insurance and safety is led by what official

lawyer [7]

Answer: Georgia Department of Insurance

Explanation: I hope this help :]

6 0

3 years ago

What is someone who leaves there country to settle in another?

Eddi Din [679]

Answer:

an immigrant

Explanation:

8 0

3 years ago

Read 2 more answers

An 800 kg fishing boat going south at 12 m/s runs into a stopped pontoon boat (1400 kg). The boats stick together and move south

kykrilka [37]

Answer:

the velocity of the boats after the collision is 4.36 m/s.

Explanation:

Given;

mass of fish, m₁ = 800 kg

mass of boat, m₂ = 1400 kg

initial velocity of the fish, u₁ = 12 m/s

initial velocity of the boat, u₂ = 0

let the final velocity of the fish-boat after collision = v

Apply the principle of conservation of linear momentum for inelastic collision;

m₁u₁ + m₂u₂ = v(m₁ + m₂)

800 x 12 + 1400 x 0 = v(800 + 1400)

9600 = 2200v

v = 9600/2200

v = 4.36 m/s

Therefore, the velocity of the boats after the collision is 4.36 m/s.

7 0

3 years ago

3. How many elements are found naturally on the Farth? *

valentinak56 [21]

Answer:

Fir wat glasss

Explanation:

6 0

3 years ago

A row of seats is parallel to a stage at a distance of 90 m from it. At the center and front of the stage is a diffraction horn

Serggg [28]

Answer:

distance between seats = 2*11.10 = 22.20 m

Explanation:

seats row is parallel to a stage with a distance d = 90 m

doorway width = 0.070 m

speaker frequency = 4.00 * 10^4 Hz

Speed of sound = 343 m/s

tone will be heard at

$sin \theta = \frac{\lambda}{D}$

we know that $v =\lambda d$

so

$sin\theta = \frac{v}{dD}$

$= \frac{343}{4.00 * 10^4*0.070}$

$sin\theta = 0.1225$

$\theta = 7.036 degree$

$tan\theta =\frac{x}{d}$

[tex]x = d*tan\theta = 90*0.1234 = 11.10 m

distance between seats = 2*11.10 = 22.20 m

7 0

3 years ago