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
PilotLPTM [1.2K]
3 years ago
5

This is a cell, which is the basic unit of all life. All organs in human bodies are made of cells and require oxygen to survive.

Which two systems work together to deliver oxygen to cells throughout the body?
A) skeletal and endocrine
B) digestive and endocrine
C) skeletal and respiratory
D) respiratory and cardiovascular
Physics
1 answer:
kotegsom [21]3 years ago
5 0
The two systems that work together to deliver oxygen are D, respiratory and cardiovascular
You might be interested in
What are the primary colors?
Zepler [3.9K]
The Primary Colors are Red Yellow and Blue
5 0
3 years ago
Read 2 more answers
What is a positive impact of artificial fertilizers
dybincka [34]
<span>The top benefit of pesticides is their effectiveness against pests that would otherwise decimate crops large and small. </span>
5 0
3 years ago
A gas is compressed from an initial volume of 5.55 L to a final volume of 1.22 L by an external pressure of 1.00 atm. During the
algol13

Answer:

Explanation:

change in the volume of the gas = 5.55 - 1.22

= 4.33 X 10⁻³ m³

external pressure ( constant ) P = 1 x 10⁵ Pa

work done on the gas

=external pressure x change in volume

= 10⁵ x  4.33 X 10⁻³

=4.33 x 10²

433 J

Using the formula

Q = ΔE + W , Q is heat added , ΔE is change in internal energy , W is work done by the gas

Given

Q = - 124 J ( heat is released so negative )

W = - 433 J . ( work done by gas is negative, because it is done on gas  )

- 124  = ΔE - 433

ΔE = 433  - 124

= 309 J

There is increase of 309 J in the internal energy of the gas.

3 0
3 years ago
Use the information presented in the graph to answer
Angelina_Jolie [31]

1) Segments A and C

2) Segment C

3) 40 m/s

4) 0

Explanation:

The graph is missing: find it in attachment.

1)

Here we want to find which segments show acceleration.

Acceleration is defined as the rate of change of velocity of an object; mathematically:

a=\frac{\Delta v}{\Delta t}

where

\Delta v is the change in velocity

\Delta t is the time interval

On a velocity-time graph, an object has acceleration if its velocity, v, changes versus time.

In this problem, we see that this situation occurs in two segments:

- In segment A, where the is a change in velocity (\Delta v>0), so there is an acceleration

- In segment C, where the is also a change in velocity (\Delta v>0), so there is an acceleration

B)

Here we want to find in which segment the object is slowing down.

For an object to slow down, the final velocity must be less than the initial velocity, which means that the change in velocity must be negative:

\Delta v = v-u

where

v is the final velocity

u is the initial velocity

For the graph in the problem, we see that:

- For segment A, the final velocity is greater than the initial velocity, so the object is speeding up

- For segment B, the final velocity is equal to the initial velocity, so the object is neither speeding up nor slowing down

- For segment C, the final velocity is less than the initial velocity, so the object is slowing down

So, the segment in which the object is slowing down is segment C.

C)

The velocity of an object is defined as the displacement covered per unit time:

v=\frac{d}{\Delta t}

where

d is the displacement

\Delta t is the time elapsed

On a velocity-time graph, the velocity is represented on the y-axis, while the time is represented on the x-axis.

Therefore, it is possible to read directly the value of the velocity from the y-axis.

For segment B, we see that the velocity is constant, and its value is

v_B=40 m/s

D)

As we stated before, the acceleration of an object is the rate of change of its velocity:

a=\frac{\Delta v}{\Delta t}

where

\Delta v is the change in velocity

\Delta t is the time interval

Here we want to find the acceleration for segment B. For this segment, we observe that:

- The velocity does not change, so \Delta v = 0

- The time interval is \Delta t = 9 s - 4 s = 5 s

Therefore, the acceleration in segment B is:

a_B=\frac{0}{5s}=0

6 0
3 years ago
Someone please help me
MrRissso [65]

Answer:

There it is fella atleast i tried

8 0
2 years ago
Other questions:
  • If continuous spectrum light from a star passes through a cool, low-density gas on its way to your telescope and spectroscope, _
    11·1 answer
  • Explain why the tip of a sewing needle is sharp
    11·1 answer
  • A boy rubs two balloons against his sweater. One balloon acquires a charge of 3.0 E -6 C. The other balloon acquires a charge of
    6·1 answer
  • The liquid contained in batteries that conducts electric charge is called the: solution, electrolyte, suspension, colloid
    12·1 answer
  • A velocity vs time graph what is the acceleration of the object
    5·2 answers
  • A projectile is fired at ????0=355.0 m/s at an angle of theta=68.4∘ , with respect to the horizontal. Assume that air friction w
    5·1 answer
  • Current will travel along the path with the highest resistance. <br><br>true or false​
    11·2 answers
  • A 30.0 g mass of iron at 24.5°C is heated to 45.0°C. The theoretical specific
    10·1 answer
  • 4 kg of water was
    6·1 answer
  • Describe three ways that adults continue to guide children's emotions during the school-age
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!