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
pshichka [43]
2 years ago
15

___________ are over 500 million years old and have been developing their unique system all that time.

Physics
2 answers:
Varvara68 [4.7K]2 years ago
5 0

Answer:

none the earth isn't that old

Explanation:

zhannawk [14.2K]2 years ago
3 0

Answer:

C

Explanation:

You might be interested in
8 points
Lunna [17]
The pilot might be correct (I think), because, if the gravity of the planet is strong, then the planet’s gravity will pull the spaceship into its orbit, so the engines don’t need to be on for the ship to get pushed toward the planet.
4 0
3 years ago
Read 2 more answers
What best describes the dropping height of a ball that bounced back up to a height of 45 centimeters?
murzikaleks [220]

Answer:C:Less than 45 centimeters, as the ball transforms some of its potential energy into thermal energy and sound energy

Less than 45 centimeters, as the ball transforms some of its potential energy into thermal energy and sound energy.

Although the initial energy (potential energy is preserved), the energy of deformation as the ball strikes a surface creates energy dissipation in the form of frictional heat and audible sound energy.

Every time the ball bounces, its height will be less than its previous height.

Explanation:

6 0
3 years ago
lcompute the increase in length of 500 m of copper wire when it's temperature changes from 12 degrees celsius to 32 degrees Cels
marshall27 [118]

Explanation:

step by step explanation

7 0
2 years ago
I really need help.
Zielflug [23.3K]
2/5 = .4
.4*100= 40%
Alex spends more time
4 0
3 years ago
An alternating source drives a series RLC circuit with an emf amplitude of 6.04 V, at a phase angle of +30.3°. When the potentia
Vinvika [58]

Answer:

-8.56V

Explanation:

Our values are given by,

e = 6.04 V

Φ = 30.3

VC = 5.32

We can calculate the voltage across the circuit with the emf formula, that is,

e(t) = e* sin(wt)

e(t) = 6.04 * sin(Φ + π)

e(t) = 6.04 * sin(32.5 + 180)

e(t) = -3.245 V

Now, Using Kirchoff Voltage Law,

e(t) - VR- VL - VC = 0

-3.24 - 0 - VL - 5.32 = 0

Finally we have the potential difference across the inductor.

VL = - 8.56 v

5 0
2 years ago
Other questions:
  • Two football players are pushing a 60kg blocking sled across the field at a constant speed of 2.0 m/s. The coefficient of kineti
    9·1 answer
  • If you throw a tennis ball in the air,what type of motion does it have?
    9·1 answer
  • In photography what are clouds best described as?
    15·1 answer
  • For a given ideal gas if it temperature is constant the pressure of the gas is proportional ??
    12·2 answers
  • a portable DVD player requires six 1.5-volt batteries to operate.if the resistance in the circuitis 7.2 ohms. what's the current
    14·1 answer
  • The power in a circuit is 2W and the voltage is 20VDC. Whats the curcuit current?
    15·1 answer
  • A transformer supplies 60 watts of power to a device that is rated at 20 volts. The primary coil is connected to a 120-volt ac s
    13·1 answer
  • What is the original source of energy for gasoline?
    5·2 answers
  • What is equilibrium state​
    15·2 answers
  • A horse runs 350 meters in 23 seconds. What was the average speed of the horse? Round your answer to a tenth ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!