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Rashid [163]
3 years ago
9

Andrew gathered several different species of seed plants. Which three characteristics do all the plants most likely share? have

pollen and flowers; lack phloem have pollen and rhizoids; lack xylem have xylem and phloem; lack pollen have xylem and phloem; lack rhizoids
Physics
2 answers:
kvv77 [185]3 years ago
8 0

Answer:

the answer is c

Explanation:

BigorU [14]3 years ago
6 0

Answer:

c

Explanation:

no te tengo porque darte explicaciones

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Which process is represented by the PV diagram?
Reika [66]

Hi!


The answer would be A. Isobaric Process


<h3>Explanation:</h3>

Isobaric process is a process where the pressure inside a system remains unchanged. In the Pressure Volume graph given, you can see that the pressure (y axis) remains constant with an increasing volume ( x axis). An example of this would be heating a container with a movable piston. Now, the degree of pressure is dependent on the frequency of collisions of particles inside a system on the walls. If this frequency changes, the pressure changes (proportionally). In our example, heating a container with a movable piston results in the particles inside the container to gain kinetic energy and move faster, meaning an increased frequency of collisions (higher pressure), but at the system time the increase in pressure results in the piston being pushed outwards, causing the volume of the container to increase. This results in decreased frequency of collision of the particles with the walls of the container (lesser pressure). This results in the a zero net effect on the pressure.


Hope this helps!

3 0
4 years ago
Give five characteristics of a metal​
Kipish [7]

Answer:

are good conductors of heat,are you used to make doors utensils e.t.c.

3 0
3 years ago
In the presence of a nucleus the energy of a y-ray photon can be converted into an electron-positron pair. Calculate the minimum
Vlada [557]

Answer:

Explanation:

mass of electron in amu = .000549

mass of electron = mass of proton

total mass of electron and proton = 2 x1.098 x 10⁻³ = 2.196 x 10⁻³ amu

1 amu = 931 x 10⁶ eV

2.196 X 10⁻³ amu = 2.196 x 931 x 10³ eV

= 2.044 X 10⁶ eV.

= 2044 X 10³ ev

So minimum energy required = 2044 x 10³ eV.

Wavelength of photon required = 12375/2044 x 10³ A

= 6.054 X 10⁻³A. =6.054 X 10⁻¹³ m

frequency of photon  = 3 x 10⁸/6.054x 10⁻¹³

= .4955 x 10¹⁶Hz.

= 4.955 x 10¹⁵ Hz

3 0
4 years ago
A raft is made of 10 logs lashed together. Each is 56cm in diameter and has a length of 6.1m. How many people can the raft hold
astra-53 [7]

Answer:

n = 87 the number of people can raft hold

Explanation:

The raft is made of 10 logs

No given the information to find the average person assuming

w = 69 kg , wₙ = 0.60

e = 56 cm * 1 / 100 cm = 0.56 m

l = 6.1 m

V = 10 * 6.1m * (0.56m /2) ² π

V = 15.024 m³

m₁ = V * L³ * wₙ + mₙ

m₂ = V * L³

m₁ < m₂

n < V * (1 - wₙ) * L₃ / w

n < 15.024 m³ * ( 1 - 0.60) * 10³ / 69 kg

n ≅ 87

Is the number of maximum people

8 0
4 years ago
1. A children’s roller coaster is released from the top of a track. If its maximum speed at ground level is 3 m/s, find the heig
Aleksandr-060686 [28]

Answer:

The king sucks the teachers also that's one is throwing up in the chores because here he uses so for S voice so Flora To play college sucking the PP

5 0
3 years ago
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