1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Wittaler [7]
3 years ago
13

A satellite with a mass of 5.6 E 5 kg is orbiting the Earth in a circular path. Determine the satellite's velocity if it is orbi

ting at a distance of 6.8 E 5 m above the Earth's surface. Earth's mass = 5.98 E 24 kg; Earth's radius = 6.357 E 6 m.
A) 6,800 m/s
B) 7,200 m/s
C) 7,500 m/s
D) 7,900 m/s
Physics
1 answer:
Alona [7]3 years ago
5 0

Answer:

C) 7,500 m/s

Explanation:

The satellite's acceleration due to gravity equals its centripetal acceleration.

v² / r = GM / r²

Solving for velocity:

v² = GM / r

v = √(GM / r)

Given:

G = 6.67×10⁻¹¹ m³/kg/s²

M = 5.98×10²⁴ kg

r = 6.357×10⁶ m + 6.8×10⁵ m = 7.037×10⁶ m

Substituting the values:

v = √(6.67×10⁻¹¹ × 5.98×10²⁴ / 7.037×10⁶)

v = √(5.67×10⁷)

v = 7500 m/s

You might be interested in
A rod 150 cm long and of diameter 2.0 cm is subjected to an axial pull of 20 kn. if the modulus of elasticity of the material of
Scilla [17]
Given:
rod of circular cross section is subjected to uniaxial tension.
Length, L=1500 mm
radius, r = 10 mm
E=2*10^5 N/mm^2
Force, F=20 kN = 20,000 N
[note: newton (unit) in abbreviation is written in upper case, as in  N ]

From given above, area of cross section = π r^2 = 100 π =314 mm^2
(i) Stress,
σ
=force/area
= 20000 N / 314 mm^2
= 6366.2 N/mm^2
= 6370 N/mm^2 (to 3 significant figures)

(ii) Strain
ε
= ratio of extension / original length
= σ / E
= 6366.2 /(2*10^5)
= 0.03183 
= 0.0318 (to three significant figures)

(iii) elongation
= ε * L
= 0.03183*1500 mm
= 47.746 mm
= 47.7 mm  (to three significant figures)

5 0
4 years ago
A spring is 14cm long. Three masses are hung from it and then it is measured again. Now it is 19.5cm long. What force did the th
lukranit [14]

Answer:

Gravity

Explanation:

The answer is gravity because when the 3 masses were hung from the spring, gravity pulled the spring towards the ground.

3 0
3 years ago
Find u + (3v - w) <br> u =-4i-8j <br> v= -11i -3j <br> w=5i+7j
k0ka [10]

Answer:

gunrun

Explanation:

5 0
2 years ago
The speed of sound through argon is shown.
kobusy [5.1K]

Answer:

3200

Explanation:

5 0
3 years ago
Read 2 more answers
-What is the storm on Saturn called?
Harrizon [31]

Answer:

-the Great White Spot

-At least, you wouldn't be able to live on Saturn like you'd live on Earth, or perhaps even Mars. Saturn is what we call a “gas giant.” It is a planet made up most of hydrogen and helium. This means that there is no solid surface on Saturn, Well, that we know of, anyway. ... Saturn doesn't have any of that.

-Enceladus orbits the planet at a distance of about four Saturn radii, replenishing the torus with its jets of water. ... Saturn's atmosphere is known to contain traces of gaseous water in its deeper layers. A particular enigma has been the presence of water in its upper atmosphere.

-On the planet of the rings the atmosphere holds a treasure: real showers made from diamonds. What makes precious stones rain down on this planet? On Saturn, the combination of methane with storms produces a shower of diamonds. ... About 10 million tons of diamond rain down on Saturn each year

-A unique feature of Saturn is that it is the least dense planet in the Solar System. Although Saturn may have a dense, solid core, the large gaseous outer layer of the planet makes its average density a mere 687 kg/m3. As result, Saturn is lighter than water.

-Viewed from Earth, Saturn has an overall hazy yellow-brown appearance. The surface that is seen through telescopes and in spacecraft images is actually a complex of cloud layers decorated by many small-scale features, such as red, brown, and white spots, bands, eddies, and vortices, that vary over a fairly short time.

-hexagon

-58,232 km

-0d 10h 42m

-Saturn's hexagon is a persistent approximately hexagonal cloud pattern around the north pole of the planet Saturn, located at about 78°N.

-Dark matter is composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation. Dark matter is material that cannot be seen directly. We know that dark matter exists because of the effect it has on objects that we can observe directly.

-Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving like the opposite of gravity. ... Dark Energy makes up 72% of the total mass-energy density of the universe. The other dominant contributor is Dark Matter, and a small amount is due to atoms or baryonic matter.

-It's possible that before the Big Bang, the universe was an infinite stretch of an ultrahot, dense material, persisting in a steady state until, for some reason, the Big Bang occured. This extra-dense universe may have been governed by quantum mechanics, the physics of the extremely small scale, Carroll said

<h2>Hope it helps...</h2><h2>Have a great day : )</h2>

7 0
3 years ago
Other questions:
  • 1 . According to the nebular theory, the solar system formed from ?
    12·2 answers
  • James accelerates his skate board uniformly along a straight road from rest to 10 m/s in 4 seconds. What is James Acceleration?
    9·1 answer
  • As a ball falls freely toward the ground, its total
    9·1 answer
  • What force would be required to accelerate a 1.100 kg car to 0,5 m/s27
    10·1 answer
  • Two different substances, Substance A and Substance B, are in direct contact with each other and are at different temperatures.
    6·2 answers
  • A rocket is moving away from the solar system at a speed of 7.5 ✕ 103 m/s. It fires its engine, which ejects exhaust with a spee
    6·1 answer
  • Are eggs a element, a compound, or a mixture
    7·2 answers
  • A 2.5 kg object has an acceleration of 4 m/s2. What is the force of the object?
    13·1 answer
  • If a ray incidents normally on a plane mirror,what will be the angle of reflection.​
    9·1 answer
  • 6. What are the arguments for using real per capita GNI to compare living standards between countries? What weakness does this m
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!