We first apply the data to the problem.
Data:
V = 10m/sT = 5sD = ?Then, we apply the formula that is.
Formula:
D = V • TFinally we develop the problem.
Developing:
D = (10m/s) • (5s)D = 50mThe car travels a distance of 50 meters.
Human blood flows from the aorta to the capillaries. A girl has an aorta radius of 12.6 mm. Assume she has 7 billion capillaries in the body, the capillaries radius average 4 µm (micrometer), and the blood speed average 0.5 mm/s in the capillaries. The blood speed is _____ mm/s in the aorta.
The radius of the aorta is 10 mm. (a) Blood also circulates through capillaries, which are tiny blood vessels. if the aorta's blood flow rate is 5.0 L/min.
Where does the aorta's blood flow?Your heart receives blood from your coronary arteries. These arteries diverge from the aorta to supply your heart and the rest of your body with oxygen-rich blood.
How does blood get from the aorta to the capillaries?Freshly oxygenated blood transfers oxygen from the blood toward the tissues and carbon dioxide moves from the tissues back toward the blood when it enters the capillaries of the tissues. This process of blood and tissue and organ cell gas exchange is referred to as "internal breathing."
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Given: g=10 m/s^2
A car moves a distance of 80 m during
a time interval of 10 s. The average
speed v_avg of this car is:
2 m/s
6 m/s
O 10 m/s
O 8 m/s
O 4 m/s
During a 10-second period, a car travels 80 meters. This car typically travels at a speed of 8 m/s.
An illustration of average velocity.For instance, if it takes a person 40 minutes to travel 20 miles north, 20 miles south, and finally 20 miles in between, their average speed is 40 miles divided by 40 minutes, or 1 mile per minute. Instead of distance, average velocity takes into account total displacement.
How is average velocity calculated?The total displacement must be divided by the total time elapsed in order to determine the average velocity.
average velocity= total displacement/ total time
avg velocity=80/10=8m/s
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according to the color code, the number of pairs of conductors in a cable that can be defined without repeating a color combination is?
According to the color code, the number of pairs of conductors in a cable that can be defined without repeating a color combination is 25 pairs
To identify individual conductors in a telecommunications twisted pair cable the 25-pair color code is used. These colors are marked on the conductor's insulation. The primary colors are white, red, black, yellow, and violet. The secondary colors are blue, orange, green, brown, and slate.
The primary color is called a tip which is positive and the secondary color is called a ring which is negative. In the pair, only one color from each group should be used. So the possible combinations are 25 pairs.
Therefore, according to the color code, the number of pairs of conductors in a cable that can be defined without repeating a color combination is 25 pairs
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Why do some organisms make one type of protein for a feature while other organisms make two? Use the above words in your response.
Answer:
Genes provide instructions for making proteins but they do not build the proteins themselves. Why do some organisms make one type of protein for a feature and others make two? An organism has two copies of a gene for each feature; these can be the same version or different.
Explanation:
Calculate how much gravitational potential energy is gained if you climb a flight of stairs
Assume that you have a mass of 52 kg and that the
height you lift yourself is 2.5m.
The gravitational potential energy gained by the body of mass 52 kg when climbing a stairs is 1274 J.
What is gravitational potential energy?Gravitational potential energy is the energy of a body due to its position in the gravitational field.
To calculate the gravitational potential energy, we use the formula below.
Formula:
P.E = mgh............... Equation 1Where:
m = MassP.E = Potential energyh = Heightg = Acceleration due to gravity.From the question,
Given:
m = 52 kgh = 2.5 mg = 9.8 m/s²Substitute these values into equation 1
P.E = 52×2.5×9.8P.E = 1274 JHence, the gravitational potential energy of the body is 1274 J.
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What are some ways to change the resistance in a circuit?
Suppose you have an electrical device that needs a steady current of
10 milliamperes. You need to greatly increase the length of the wire
between the battery pack and the appliance. What changes will you
need to make in your circuit to keep a steady current?
Suppose you are designing a toaster, a device that requires several hot,
glowing wires to do its job. You want to use as little voltage as possible.
Describe the characteristics of the "toasting" wires.
Attachments
Some ways to change the resistance in a circuit.resistance can be changed in the circuit by changing the length of the wire, area of the wire, resistivity of the wire.
WHAT IS STEADY CURRENT?steady current means a continuous flow that has been going on forever, without change and without charge piling up anywhere.
A system (e.g. circuit) is in the steady state when the current at each point in the circuit is constant (does not change with time). –In many practical circuits, the steady state is achieved in a short time.
steady current can be produced in the circuit in which resistance is changing by varying the voltage. by increasing or decreasing the voltage we can maintain a constant or steady current in a circuit which has varying resistance.
charecteristics of toasting wires:
it is made up of nichrome wiresnichrome is an alloy made up of nickel and chromiumit is resistant to oxidationit is resistant to alkali and chemicals it is resistant to heatThe most common way for a toaster to create the infrared radiation is to use nichrome wire wrapped back and forth across a mica sheet, Nichrome wire is an alloy of nickel and chromium. It has two features that make it a good producer of heatNichrome wire has a fairly high electrical resistance compared to something like copper wire, so even a short length of it has enough resistance to get quite hot.The nichrome alloy does not oxidize when heated. Iron wire would rust very quickly at the temperatures seen in a toaster.
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Which has more kinetic energy, a car of mass 500 kg traveling at 15 m/s or a motorcycle of mass 250 kg traveling at 30 m/s?
The motorcycle of mass 250 kg traveling at 30 m/s has more kinetic energy than a mass of 500 kg traveling at 15 m/s.
What is kinetic energy?Kinetic energy is the energy possessed by an object because of its motion, equal (nonrelativistically) to one half the mass of the body times the square of its speed.
The kinetic energy of a body can be calculated using the following formula:
K.E = ½mv²
Where;
m = mass of the objectv = velocityAccording to this question, two masses of 500kg and 250kg are traveling at speeds of 15m/s and 30m/s respectively.
K.E = ½ × 500 × 15² = 56250J
K.E = ½ × 250 × 30² = 112,500J
This shows that 112,500J, which is the motorcycle with mass of 250kg traveling at 30m/s is the highest.
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A battery-powered lawn mower has a mass of 36.0 kg. If the net external force on the lawn mower, including both your push and any resistance, is 41.5 N, then what is the magnitude of the mower’s acceleration?
The magnitude of the mower's acceleration of mass 36 kg is 1.15 m/s².
What is acceleration?Acceleration can be defined as the ratio of the change in velocity to the time of a body.
To calculate the magnitude of the mower's acceleration, we use the formula below.
Formula:
a = F/m................. Equation 1Where:
a = AccelerationF = Forcem = Mass of mowerFrom the question,
Given:
m = 36 kg41.5 NSubstitute these values into equation 1
a = 41.5/36a = 1.15 m/s²Hence, the acceleration of the mower is 1.15 m/s².
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