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
Paladinen [302]
3 years ago
15

Suppose the entire population of the world gathers in one spot and, at the sounding of a prearranged signal, everyone jumps up.

While all the people are in the air, does Earth gain momentum in the opposite direction?
a) No; the inertial mass of Earth is so large that the planet’s change in motion is imperceptible.
b) Yes; because of its much larger inertial mass, however, the change in momentum of Earth is much less than that of all the jumping people.
c) Yes; Earth recoils, like a rifle firing a bullet, with a change in momentum equal to and opposite that of the people.
d) It depends.
Physics
1 answer:
Vladimir79 [104]3 years ago
6 0

Answer:(B)

Explanation:

You might be interested in
Help me with this???
Vikentia [17]

Yo sup??

Average velocity=total distance covered/total time taken

total distance covered=4 + 8=12 miles

total time taken=6 hours

Therefore

average velocity=12/6

=2 miles/hour

Hope this helps

8 0
3 years ago
Two ice skaters stand in the middle of an ice rink. Drew has a mass of 75 kg, and Lily has a mass of 55 kg. Drew holds Lily, and
ss7ja [257]

PART a)

Before Drew throw Lily in forwards direction they both stays at rest

So initial speed of both of them is zero

So here we can say that initial momentum of both of them is zero

So total momentum of the system initially = ZERO

PART b)

Since there is no external force on the system of two

so there will be no change in the momentum of this system and it will remain same as initial momentum

So final momentum of both of them will be ZERO

PART c)

As we know that momentum of both will be zero always

so we have

P_1 + P_2 = 0

75(v) + 55(2) = 0

v = 1.47 m/s in opposite direction

7 0
2 years ago
Read 2 more answers
Definition of Speed?​
ANEK [815]

Explanation:

speed of an object is the magnitude of the rate of change of its position with time or the magnitude of the change of its position per unit of time; it is thus a scalar quantity.

4 0
2 years ago
Read 2 more answers
What is the rate of change of an object’s velocity per unit of time known as?
irga5000 [103]
The rate of change of object's velocity per unit of time is known as acceleration.

Hope this helps you.
6 0
3 years ago
Read 2 more answers
William wanted to create a report on a geographical location with the greatest species diversity. Which ecosystem can consider f
FrozenT [24]

Answer:

The ecosystem that he should consider is the tropical rain forest ecosystem.

Explanation:

In that area, there are uncountable amounts of various plants and animals that have not all yet been discovered and who all live together to build the biome. This biome is indeed the most diverse one even at this point without the knowledge of all possible life forms.

8 0
3 years ago
Other questions:
  • At an age of 380,000 years, the temperature of the universe had fallen to 3000 K, and electrons could then combine with protons
    6·1 answer
  • Two beams of coherent light travel different paths, arriving at point P. If the maximum destructive interference is to occur at
    6·1 answer
  • Identify two types of simple machines in this compund machine.
    5·2 answers
  • How long does it take to reach the sun?
    15·1 answer
  • Hunter works to fix wires and paneling. Hunter is a(n)
    15·2 answers
  • Compare the kinetic energy of a 20,000-kg truck moving at 110 km/h with that of an 80.0-kg astronaut in orbit moving at 27,500 k
    5·1 answer
  • How is color related to wavelength?
    8·1 answer
  • 13. Under what condition (if any) does a moving body experience no energy even though there
    9·1 answer
  • A glow-worm of mass 5.0 g emits red light (650 nm) with a power of 0.10 W entirely in the backward direction. To what speed will
    11·2 answers
  • The importance of globular clusters in determining the correct location of the center of the Milky Way Galaxy is that they conta
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!