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
rosijanka [135]
3 years ago
8

Which is the best example of the concept of heredity? A. A black cat blends into its environment at night. B. A baby has his mot

her's hair and eye color. C. As a barnacle grows, it gets calcium for its shell from seawater. D. The sunflower will move so its flower head is always facing the sun.
Physics
2 answers:
o-na [289]3 years ago
7 0
B. A baby has it's mother's hair and eye color

The reason for this is, well, heredity is the passing of traits from parents to offspring. So, a black cat blending into it's environment at night simply does not have much to do with heredity. But a baby inheriting it's mother's eye color and hair color is definitely heredity, for it was inherited.

Hope this helped!!
Hitman42 [59]3 years ago
4 0
B) A baby has his mother's hair and eye color 
You might be interested in
What is the wavelength of a wave that has a speed of 3 km/s and a frequency of 12 Hz? A. 36 km B. 3.6 km C. 0.25 km D. 4 km
butalik [34]

Answer:

c. 0.25km

Explanation:

v=f x wavelength

3000 = 12 x wavelength

wavelength = 3000/12 = 250m

250m to km

To convert m to km, we divide by 1000

250/1000 =0.25km

wavelength = 0.25km

3 0
3 years ago
What is the highest frequency wave? The lowest frequency wave?
Readme [11.4K]

Answer:

Gamma rays have the highest energies, the shortest wavelengths, and the highest frequencies. Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation.

Explanation:

Hope this helps:)

6 0
2 years ago
Read 2 more answers
A net force of 50 newtons is applied to a 20 kilogram cart that is already moving at 1 m/s the final speed of the cart was 3 m/s
valina [46]

Answer:

0.8 seconds

Explanation:

F=ma

Let x be the seconds the force is applied.

m = 20kg

F = 50 Newtons (kg*m/sec^2)

acceleration, a, is provided for x seconds to increase the speed from 1 m/s to  3 m/s, an increase of 2m/s

Let's calculate the acceleration of the cart:

F=ma

(50 kg*m/s^2) = (20kg)*a

a = 2.5 m/s^2

---

The acceleration is 2.5 m/s^2.  The cart increases speed by 2.5 m/s every second.  

We want the number of seconds it takes to add 2.0 m/sec to the speed:

(2.5 m/s^2)*x = 2.0 m/s

x = (2.0/2.5) sec

x = 0.8 seconds

7 0
2 years ago
What is the lowest possible temperature
HACTEHA [7]
The lowest possible temperature is absolute zero. However scientists have not reached this temperature, rather they have come very close to absolute zero.

6 0
2 years ago
Read 2 more answers
A ball is thrown up into the air with an initial velocity of 18 m/s. A) How high does the ball go? B) Calculate the time needed
kaheart [24]

Answer:

B) t = 1.83 [s]

A) y = 16.51 [m]

Explanation:

To solve this problem we must use the following equation of kinematics.

v_{f} =v_{o} -g*t

where:

Vf = final velocity = 0

Vo = initial velocity = 18 [m/s]

g = gravity acceleration = 9.81 [m/s²]

t = time [s]

Note: the negative sign in the above equation means that the acceleration of gravity is acting in the opposite direction to the motion.

A) The maximum height is reached when the final velocity of the ball is zero.

0 = 18 - (9.81*t)

9.81*t = 18

t = 18/9.81

t = 1.83 [s], we found the answer for B.

Now using the following equation.

y = y_{o} + v_{o}*t - 0.5*g*t^{2}\\

where:

y = elevation [m]

Yo = initial elevation = 0

y = 18*(1.83) - 0.5*9.81*(1.83)²

y = 16.51 [m]

7 0
2 years ago
Other questions:
  • _________ is amount of “ground” an object moves from its starting point and __________ is how much “ground” and object covers in
    6·2 answers
  • 10 POINTS ANSWER FAST!
    7·2 answers
  • Who does the little boy in the animation with the compass grow up to be??
    9·1 answer
  • 2- Two materials, A and B, are used to make cables of
    6·1 answer
  • ***PLEASE HELP WITH ANSWER AND EXPLANATION: Imagine the current in a current-carrying wire is flowing into the screen. What is t
    13·2 answers
  • •<br> 2.<br> particles penetrate through paper.
    14·1 answer
  • If a dog runs 30 meters in 10 seconds what is the speed of the dog
    9·2 answers
  • If the horse lifts a 50 kilogram mass a vertical distance of 3 meters in 2 seconds, what is the horse’s minimum power output?
    9·1 answer
  • A body falls from rest under gravity, the velocity “v” is given by v=kgp h q , where h is the distance fallen through, g the acc
    9·1 answer
  • A child has fallen while riding a bike. When should a bystander call 911 ?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!