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fenix001 [56]
3 years ago
8

Lucille is finding it difficult to play soccer after school. Her doctor thinks that her cells might not be getting enough oxygen

. When Lucille talked about it with her friend, her friend said there might be a problem with Lucille‘s respiratory system or circulatory system.
What do Lucille cells need an order for her body to function properly? How might a problem with Lucille‘s respiratory system and circulatory system make it difficult for Lucille to play soccer?
Physics
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

See the explanation below.

Explanation:

Circulation of blood and oxygen is possible in body when circulatory system work along with respiratory system. Through tranche air moves in and out from lungs, whereas, through pulmonary arteries and veins (both connected to heart) blood moves in and out from the lungs. As Lucille is facing problem in his respiratory and circulatory system hence, it is difficult for him to play soccer because under normal circumstances when there is increase in physical activity then muscle cell respire more as compare to when the body is on rest. So, with increase of physical activity there is also increase in the rate of breathing which result in more absorption of oxygen and more removal of carbon dioxide but if there is problem in respiratory and circulatory system, for example, infection in throat due to pollution,etc. then this normal process of breathing gets affected which sometime may prove fatal to the person.

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A beta particle is identical to _____ the nucleus of a helium atom an electron a proton a neutron
svp [43]
A beta particle is identical to : an electron

Both of beta particle and electron are high in energy and move in high speed.
hope this helps
5 0
4 years ago
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Consider two laboratory carts of different masses but identical kinetic energies and the three following statements. I. The one
kolbaska11 [484]

Answer:

d) I and III only.

Explanation:

Let be m_{1} and m_{2} the masses of the two laboratory carts and let suppose that m_{1} > m_{2}. The expressions for each kinetic energy are, respectively:

K = \frac{1}{2}\cdot m_{1}\cdot v_{1}^{2} and K = \frac{1}{2}\cdot m_{2}\cdot v_{2}^{2}.

After some algebraic manipulation, the following relation is constructed:

\frac{m_{1}}{m_{2}} = \left(\frac{v_{2}}{v_{1}}\right)^{2}

Since \frac{m_{1}}{m_{2}} > 1, then \frac{v_{2}}{v_{1}} > 1. That is to say, v_{1} < v_{2}.

The expressions for each linear momentum are, respectively:

p_{1} = \frac{2\cdot K}{v_{1}} = m_{1}\cdot v_{1} and p_{2} = \frac{2\cdot K}{v_{2}} = m_{2}\cdot v_{2}

Since v_{1} < v_{2}, then p_{1} > p_{2}. Which proves that statement I is true.

According to the Impulse Theorem, the impulse needed by cart I is greater than impulse needed by cart II, which proves that statement II is false.

According to the Work-Energy Theorem, both carts need the same amount of work to stop them. Which proves that statement III is true.

6 0
3 years ago
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Studentka2010 [4]
<h3>♫ - - - - - - - - - - - - - - - ~<u>Hello There</u>!~ - - - - - - - - - - - - - - - ♫</h3>

➷ Speed = distance / time

Substitute in your values:

Speed = 720 / 8

Speed = 90

They traveled 90 miles per hour

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

8 0
4 years ago
Read 2 more answers
How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius
maria [59]

Answer:

897

Explanation:

Speed of the car, v = 126 km/h, converting to m/s, we have v = 35 m/s and

Radius of the curve, R = 150 mm = 0.15 m

The centripetal acceleration a(c) is given by the formula = v² / R so that

a(c) = 35² / 0.15

a(c) = 1225 / 0.15

a(c) = 8167 m/s²

The force that causes the acceleration is frictional force = µ m g, where

µ = coefficient of friction

m = the mass of the car and

g = acceleration due to gravity, 9.81

From Newton's law:

µ m g = m a(c) , so that

µ = a(c) / g

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Therefore, the coefficient of static friction must be as big as 897

5 0
3 years ago
Two objects each with a mass of 5x10^15 kg have a gravitational
kipiarov [429]

Answer:

Distance, r = 700.31 m

Explanation:

Mass of two objects, m_1=m_2=5\times 10^{15}\ kg

Force between the objects , F=3.4\times 10^{15}\ N

We need to find the distance between the two objects. The force of gravitational between two objects is given by :

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So, the distance between the objects is 700.31 m.

6 0
3 years ago
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