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
Scorpion4ik [409]
3 years ago
13

The Earth’s orbit around the Sun is slightly elliptical. At Earth's closest approach to the Sun (perihelion) the orbital radiu

s is 1.471×10^11m, and at its farthest distance (aphelion) the orbital radius is 1.521×10^11m.
a. Find the difference in gravitational potential energy between when the Earth is at its aphelion and perihelion radii.
b. If the orbital speed of the Earth is 29,290 m/s at aphelion, what is its orbital speed at perihelion?
Physics
1 answer:
hichkok12 [17]3 years ago
3 0

Answer:

1.25

Explanation:

You might be interested in
Which phrase describes speed?
Anna11 [10]

Answer:

the answer is B

Explanation:

speed is the rate at which the distance covered changes or the distance divided by the time taken.

scalar is always positive.

6 0
3 years ago
Read 2 more answers
In science, the prefix hemo- refers to
Andrej [43]
Blood

I learned this in anatomy, and I've taken it twice
8 0
3 years ago
An electron moves a 2.0x10^6 meter per the second perpendicular to a magnetic field having a flux density of 2 teslas. What is t
Darina [25.2K]

Answer:

F_B = 6.4*10^-13 N

Explanation:

The magnetic force on the electron, generated by the motion of the electron and the magnetic field is given by:

F_B=qv\ X\ B

q: electron charge = 1.6*10^{-19}C

v: speed of the electron = 2.0*10^6 m/s

B: magnitude of the magnetic field = 2T

However, the direction of B and v are perpendicular between them. So, the angle between vectors is 90°. The magnitude of the magnetic force is:

|F_B|=qvBsin90\°=qvB

You replace the values of q, v and B in the last equation:

|F_B|=(1.6*10^{-19}C)(2.0*10^6m/s)(2T)\\\\|F_B|=6.4*10^{-13}\ N

hence, the magnetic force on the electron is 6.4*10^-23 N

6 0
3 years ago
Which statement describes the difference between ionic bonds and Van der
Afina-wow [57]

Answer:

C. lonic bonds involve the transfer of electrons between ions, while

Van der Waals forces involve the attraction of nonpolar molecules.

Explanation:

Just did it

4 0
3 years ago
Consider the reaction.
Free_Kalibri [48]

2.1 x 102

Is the correct solution for this problem

5 0
3 years ago
Read 2 more answers
Other questions:
  • Technician A says that a 12-volt battery has six cells. Technician B says that the more plates a cell in a battery has, the more
    11·2 answers
  • ______ is the average _____ energy of the molecules in a object
    11·1 answer
  • A uniform log of length L is inclined 30° from the horizontal when supported by a frictionless rock located 0.6L from its left e
    6·1 answer
  • A football is kicked into the air verticaly upward. What is its(a)accelaration and(b)velocity at the highest point
    14·1 answer
  • WILL GIVE BRAINLIEST!!!!!
    12·2 answers
  • suppose that you look into a photometer's eyepiece and the fluorescent disks appear to be equal in intensity. If the distance be
    11·1 answer
  • Cars A and B are racing each other along the same straight road in the following manner: Car A has a head start and is a distanc
    10·1 answer
  • bit.♠ly/3♠vhMu♠vJ remove symbols before searching or it wont work, there was a bug stoping me from attaching the image so there
    15·2 answers
  • What principle do Tesla coils use to generate electricity?
    15·1 answer
  • the coefficient of kinetic friction between a couch and the floor is 0.65. if the couch has a mass of 42 kg and you push it with
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!