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yaroslaw [1]
3 years ago
14

Which trait is determined entirely by heredity ?

Physics
2 answers:
quester [9]3 years ago
7 0
Shape of the nose is entirely hereditary, as genes have nothing to do with any of the other attributes.
EastWind [94]3 years ago
4 0

Answer: C. Shape of the nose

Heredity can be defined as a process by which the phenotypic and genetic features and characteristics are passed from the parent organism to the offsprings. The offsprings likely to resemble that of the parents. The shape of the nose is the phenotypic trait which can be passed from the parent to the offspring, hence is a characteristic feature of establishment of heredity.

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Scarcity is not usually a problem in economics true or false
PSYCHO15rus [73]
False because the allocation rule of "first come-first served" promotes productive cooperation.
7 0
3 years ago
Read 2 more answers
A runner is jogging in a straight line at a
murzikaleks [220]

Explanation:

The runner was 8.6km away from the finish line when the bird starts flying.

Therefore it takes the bird 8.6/14.4 = 0.60 hours for the bird to fly to the finish line.

In that 0.60 hours, the runner would have ran an extra 3.6km/h * 0.6h = 2.16km.

Now, the runner and the bird are flying towards each other. The distance between them is 8.6 - 2.16 = 6.44km and their combined speed is 18.0km.

Hence, they will meet in 6.44/18.0 = 0.36 hours.

Overall, the bird flew for 0.60 + 0.36 = 0.96 hours, and flew 14.4km/h * 0.96h = 13.8km.

4 0
3 years ago
If a wave's third harmonic has a frequency of 24 Hz, what is its
Charra [1.4K]

Answer:

8 Hz, 48 Hz

Explanation:

The standing waves on a string (or inside a pipe, for instance) have different modes of vibrations, depending on how many segments of the string are vibrating.

The fundamental frequency of a standing wave is the frequency of the fundamental mode of vibration; then, the higher modes of vibration are called harmonics. The frequency of the n-th harmonic is given by

f_n = nf_1

where

f_1 is the fundamental frequency

In this problem, we know that the wave's third harmonic has a frequency of

f_3=24 Hz

This means this is the frequency for n = 3. Therefore, we can find the fundamental frequency as:

f_1=\frac{f_3}{3}=\frac{24}{3}=8 Hz

Now we can also find the frequency of the 6-th harmonic using n = 6:

f_6 = 6 f_1 = 6 (8)=48 Hz

6 0
3 years ago
What happens to a neutron that is not attached to a proton?
RSB [31]
It becomes a isotope if an atom were to lose or gain a neutron.

7 0
3 years ago
g The ball has a mass of 150 grams. If the ball has a positive charge, what initial velocity must it have at the 200-V level for
Aleonysh [2.5K]

Answer:

u_o = 12.91 m/s

Explanation:

Given:

- mass of the ball m = 0.15 kg

- Spacing between each equipotential line s = 1.0 m

- Charge on the ball is q = 10 mC

Find:

- What initial velocity must it have at the 200-V level for it to reach its maximum height at the 700-V level

Solution:

- Notice that the Electric field lines are directed from Higher potential to lower potential i.e V = + 700 level to V = 200 level. The gravitational acceleration also acts downwards.

- We will compute a resultant acceleration due to gravity and Electric Field as follows:

                                   g' = g + F_e / m

- Where F_e is the Electrostatic Force given by:

                                   F_e = E*q

- Electric field strength is given by:

                                   E = V / d

- Hence,

                                   g' = g + (dV*q/ d*m)

- Input values:

                                  g' = 10 + (500*10^-2 / 5*0.15)

                                  g' = 16.6667 m/s^2

- Now use one of the equation of motions in y-direction:

                                  h_max = u_o ^2 / 2*g'

- Input values where h_max = 5 m

                                 5*2*g' = u_o ^2

                                 u_o = sqrt (166.667)

                                 u_o = 12.91 m/s

4 0
4 years ago
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