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
vichka [17]
4 years ago
9

For approximately how long has life existed on the surface of the earth visible without a microscope

Physics
1 answer:
Novay_Z [31]4 years ago
4 0
10% of Earth's history
You might be interested in
1. Describe the components of the reflex arc
labwork [276]
The simplest arrangement of a reflex arc consists of the receptor, an interneuron (or adjustor), and an effector; together, these units form a functional group. Sensory cells carry input from the receptor (afferent impulses) to a central interneuron, which makes contact with a motor neuron.
3 0
4 years ago
What average force is required to stop an 1100-kg car in 8.0s if the car is travelling at 95km/h?
Semenov [28]

Answer: 13062.5 N

What average force is required to stop an 1100-kg car in 8.0 s if it is traveling at 95 km/h? i got the answer to be 13062.

6 0
3 years ago
Two moles of an ideal gas at 3.0 atm and 10 °C are heated up to
ololo11 [35]

Answer:

Explanation:

Two moles of an ideal gas at 3.0 atm and 10°C are heated up to 150 °C. If the volume is held constant during this heating, what is the final pressure? a. 4.5 atm.

5 0
3 years ago
Come up with an example of classical conditioning in your own life or in the real world. Be sure to identify the unconditioned s
mote1985 [20]

Answer:   All learning occurs through interactions with the environment; The environment ... In the before conditioning phase, an unconditioned stimulus is paired with an ... In our example, the conditioned response would be feeling hungry when you heard ... reinforce the salivation response to make sure the behavior is well learned.

4 0
3 years ago
Consider a swimmer that swims a complete round-trip lap of a 50 m long pool in 100 seconds. What is the swimmers average speed a
Neporo4naja [7]

Answer:

The average speed is 1 m/s

The average velocity is 0

Explanation:

Given;

length of the pool, L = 50 m

time taken for the motion, t = 100 s

The total distance = 50 m + 50 m

The total distance = 100 m

The average speed = total distance / total time

                                  = 100 / 100

                                  = 1 m/s

The average velocity = change in displacement / change in time

change in displacement = 50 m - 50 m = 0

The average velocity = 0 / 100

The average velocity = 0

5 0
3 years ago
Other questions:
  • 15. How much work must be done to stop a 1700-kg car traveling at 90 km/hr<br> Pag
    8·1 answer
  • Gravitational energy can be negative?
    11·1 answer
  • Which statement best compares these two waves
    10·1 answer
  • Describe the relationship between a moving objects mass and its kinetic energy
    6·1 answer
  • In the Bohr model of the hydrogen atom, an electron({rm mass};m=9.1; times 10^{ - 31;}{rm kg}) orbits a proton at a distance of
    6·1 answer
  • What is voltage and current?
    9·2 answers
  • What is the velocity of an object that has been in free fall for 2.5 seconds??​
    13·1 answer
  • PLZ answer asp The image shows the combustion of methane. Which equation represents this chemical reaction?
    13·2 answers
  • A
    14·1 answer
  • A mercury in barometer shows a height of 70cm.What height would be shown in the barometer at the same place if water density 1.0
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!