This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Sputnik I was launched into orbit around Earth in 1957. It had a perigee (the closest approach to ... (Read 98 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
on: Jul 29, 2018
Sputnik I was launched into orbit around Earth in 1957. It had a perigee (the closest approach to Earth, measured from Earth's center) of 6.81  106 m and an apogee (the furthest point from Earth's center) of 7.53  106 m.
 
  What was its speed when it was at its perigee? The mass of Earth is 5.97  1024 kg and G = 6.67 x 10-11 Nm2/kg2. A)
 
  7.18  103 m/s
  B)
 
  7.84  103 m/s
  C)
 
  8.23  103 m/s
  D)
 
  11.0  103 m/s
  E)
 
  13.4  103 m/s

Question 2

An unknown resistor is wired in series with an ammeter, and a voltmeter is placed in parallel across both the resistor and the ammeter. This network is then placed across a battery.
 
  If one computes the value of the resistance by dividing the voltmeter reading by the ammeter reading, the value obtained A)
 
  is less than the true resistance.
  B)
 
  is greater than the true resistance.
  C)
 
  is the true resistance.
  D)
 
  could be any of the given answers. It depends on other factors.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

af

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


Redwolflake15

  • Member
  • Posts: 569
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Approach used to determine the evolutionary relationships among many animal species using molecular Approach used to determine the evolutionary relationships among many animal species using molecular
Oceanic circulation, which is driven mainly by the prevailing winds, moderates earth's climate. Oceanic circulation, which is driven mainly by the prevailing winds, moderates earth's climate.
Comparison of Ceres with the Moon and Earth Comparison of Ceres with the Moon and Earth
The Arctic is warming faster than any other region on Earth The Arctic is warming faster than any other region on Earth
Child Development: A Topical Approach Child Development: A Topical Approach
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Video: Rh blood type and complications during pregnancy & Fertilization

For a complete list of videos, visit our video library