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
NARA [144]
3 years ago
13

Astronaut Mark Kelly and his crew traveled to the International Space Station in the space shuttle. The shuttle burned off all r

emaining fuel before entering Earth's atmosphere. When the shuttle returned to Earth it landed at a speed of approximately 354 km/hr or 220 mi/hr, about 20 times the landing speed of a commercial aircraft. What accounts for the shuttle's speed upon landing?
Physics
2 answers:
Snowcat [4.5K]3 years ago
7 0

A) Earth's atmosphere  

B) initial thrust of take-off  

C) angle of approach upon landing  

D) gravitational potential energy

It would be D. Gravitational potential energy As the shuttle prepares to return to Earth it reduces its speed so that gravity pulls it out of its orbit and toward Earth. As it approaches the earth the gravitational potential energy is converted to kinetic energy. The drag of Earth's atmosphere slows the shuttle's descent and causes some kinetic energy to convert to heat energy.

Nitella [24]3 years ago
6 0

A couple of things, if the shuttle burned all of it's fuel before entering Earth's atmosphere then that means that the shuttle was accelerating towards Earth until it ran out of fuel.  At that point, there is little to no air resistance (friction) by the lack of an atmosphere so it keeps accelerating  due to Earth's gravitational force.  The closer the shuttle gets to Earth the stronger the gravitational pull the shuttle experiences.  Note that, once the shuttle reaches Earth's atmosphere it will cause significant amount of friction and thus will cause the shuttle to slow down.

You might be interested in
What is Newton's second law of motion?
Lesechka [4]
<h2><u>Q</u><u>u</u><u>e</u><u>s</u><u>t</u><u>i</u><u>o</u><u>n</u>:-</h2>

What is Newton's second law of motion?

<h2><u>A</u><u>n</u><u>s</u><u>w</u><u>e</u><u>r</u>:-</h2>

Newton's second law of motion states that the rate of change of momentum is directly proportional to the applied force and the direction of change of momentum takes place towards direction of applied force.

<h3>\bulletWhat do you come to know from Newton's second law of motion?</h3>

1. Concept of Momentum.

2. Measurement of Force.

_____________________________________

<h3 /><h3 /><h3 /><h3>\bf Hope \: it \: helps \: you .</h3>
7 0
2 years ago
Read 2 more answers
What was the voltage on the battery for the #2 series circuit with two light bulbs?A: 4 VB: 18 VC: 4.5 VD: 9 V
Ghella [55]

We are given a series circuit with two light bulbs. In this case, the light bulbs act as resistors in series and the total resistance is:

R_t=R_1+R_2

That is the sum of all the resistances in series in the circuit. To determine the voltage we can use Ohm's law:

V=IR

Where "R" is the total resistance and "I" is the current in the circuit. Replacing we get:

V=I(R_1+R_2)

8 0
1 year ago
What is the correct chemical name for C7H8?
Nesterboy [21]

Answer:

Cycloheptatriene

Explanation:

4 0
3 years ago
Read 2 more answers
2. For a rotating rigid body, which of the following statements is NOT correct?
AfilCa [17]

Answer:

                                                dasgfwe

Explanation:

6 0
3 years ago
How can the speed of a mechanical wave energy be calculated
Slav-nsk [51]
Speed = frequency * wavelength
5 0
3 years ago
Other questions:
  • Why does life hate me?
    14·2 answers
  • .If the atoms that share electrons have an unequal attraction for the electrons, the bond is calleda. nonpolar. c. ionic.b. pola
    15·1 answer
  • An object traveling at a 5.0 m/s East has a mass of 4.0kg. What is the magnitude of the object’s momentum?
    6·1 answer
  • You have a potential difference of 8 v. how much work is done to transfer 0.32 c of charge through it? answer in units of j.
    7·1 answer
  • What is an example of Deceleration?
    13·2 answers
  • Momentum of the 2 kg mass moving with velocity 10 m/s is *
    7·1 answer
  • A batter hits a 0.140-kg baseball that was approaching him at 40.0 m/s and, as a result, the ball leaves the bat at 30.0 m/s in
    7·1 answer
  • In a thermos bottle, the vacuum between two glass bottles prevents heat being conducted between the bottles. T or F
    15·2 answers
  • If an object of mass m1 = 0.55 ???????? is sliding without friction in the +x-direction on a level surface at a speed of ????1 =
    6·1 answer
  • If you break from the speed in part (c) and then start again from rest, how fast will you be able to drive?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!