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
DiKsa [7]
4 years ago
10

1pt Which is an observation? O A. A person hears the song of a bird. OB. A person suggests that bird calls are a means of commun

ication. O C. A person concludes that bird calls attract mates. OD. A person writes a paper describing different kinds of bird calls....​

Physics
1 answer:
Doss [256]4 years ago
3 0

Answer:

D

Explanation:

he describes as he writes them down

You might be interested in
Which of these best explains why people on Earth cannot see the entire shape of the Milky Way
BartSMP [9]
I believe the answer is A.

Since the Earth is in the Milky Way and not outside it, we cannot see the exact shape of it. Physicists have been able to track and graph the movements of the planets accurately for thousands of years, but that does not mean we know the shape of the entire solar system.<span />
5 0
4 years ago
· List the atomic numbers of the elements in Period 2.
PilotLPTM [1.2K]

Answer:

3,4,5,6,7,8,9,10

3. lithium

4. beryllium

5. boron

6. carbon

7. nitrogen

8. oxygen

9. fluorine

10. neon

those are the numbers in period 2 on the periodic table.

Explanation:

4 0
3 years ago
Read 2 more answers
Joaquin mows the lawn at his grandmother’s home during the summer months. Joaquin measured the
nordsb [41]
Velocity is define as how fast an object is moving, and in what direction, it is a vector quantity, meaning velocity has both magnitude and direction. Anything goes to the left is negative, and anything goes to the right is positive.

a. Direction from east to west, given distance 11.5 meters, and time of 7.10 s

V = displacement/time  V = -11.5/7.10 S  V = -1.62 m/s  (going left)

b. Joaquin reaches his original position. Displacement is now zero.

    Velocity of the lawnmower is equal to "zero" but if we calculate for the average speed of the lawn, you just have to add the distance covered and the time it take to go back at the original position or point of origin
7 0
3 years ago
Why is plate tectonics a widely accepted theory?
MariettaO [177]

Answer: The theory of Plate Tectonics is now widely accepted because there is sufficient proof to support it, and it is an important aspect of geology, oceanography, geophysics and even paleontology.

Explanation: In places where a plate faced resistance to its movement, it would fold upward and create mountains. Hope this helped! :)

6 0
3 years ago
True or False? PLEASE HELP ME​
viva [34]

Answer:

a. True - Joules is the unit measure for energy.

b. False - Potential energy is associated with position

c. False - Kinetic energy is associated with movement.

d. False - It's climbing, which means it also has kinetic energy.

6 0
3 years ago
Other questions:
  • When a magnet is moved through a coil of wire, an electric current is generated in the coil because
    12·1 answer
  • Which statement is true for the hang time of a projectile?​
    15·1 answer
  • In the photo, a locomotive has broken through the wall of a train station. During the collision, what can be said about the forc
    7·1 answer
  • Rutherford's atomic theory included which idea?
    13·1 answer
  • A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. If he hits the ball with a velocity of 7.5 m/s and then
    11·1 answer
  • What is the overall voltage for a redox reaction with the half-reactions Mg(s) Mg2+ + 2e- and Cu2+ + 2e- Cu(s)?
    9·2 answers
  • What is the tangential speed of a point on a wheel of a car if the point is located 0.114 m from the axis of rotation; and the w
    12·1 answer
  • Traveling waves propagate with a fixed speed usually denoted as v (but sometimes c). The waves are called __________ if their wa
    12·1 answer
  • Question 1
    13·1 answer
  • A rocket that has a mass of 4000 lbm travels at 27,000 ft/sec. What is most nearly its kinetic energy
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!