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3 years ago

What is the formula for taking out deceleration? does anyone know?

1 answer:

8 0

Deceleration Formula. Deceleration is the opposite of acceleration. It is the rate at which an object slows down. Deceleration is the final velocity minus the initial velocity, with a negative sign in the result because the velocity is dropping.

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How long will the energy in a 1470-kJ (350-kcal) cup of yogurt last in a woman doing work at the rate of 150 W with an efficienc

Lyrx [107]

Answer:

The 1470 kJ of energy supplied by the yogurt would be consumed by 150 W of work (efficiency of 20%) in about 32.7 h. Then if people is not careful, easily would have more energy from the food that the amount that can consume exercising.

Explanation:

Step 1.

Energy supplied: 1470 kJ = 1470000 J.

Rate of energy used for the : 150 W = 150 J/s. This means that each second of this kind of work requieres 150 J of energy,

Step 2

For this case, efficiency is defined as the relationship between the actual rate of energy used, to the rate of energy consumed to obtain it. So:

$Eficiency=\frac{E_{obtain} }{E_{consumed} } \\$

Then the rate of energy required for this work, is calculated solving for $E_{Consumed}$ :

$E_{consumed} =\frac{E_{obtain}}{Efficiency} =\frac{150\frac{J}{s} }{0.20} =750\frac{J}{s}$

This means that for a work that as a rate of 150 J/s , It requieres to consume energy at a rate of 750 J/s.

Step 3

Now, it is possible to calculate how much time would be needed to consume the 1470000 J of energy of the yogurt. It done using this relationship:

$Time=\frac{Energy}{rate}$

Where Energy stands for the total amount of energy that would be consumed, and rate stans for the rate of energy consumption, Then the time would be:

$Time=\frac{1470000J}{750\frac{J}{s} }=1960s=32.7 h$

Then if for the consumption of 1470 kJ of energy is required almost 33 hours, Then is easy to see that the amount of enegy that can be obtain of food would much more than the amount that can be depleted by exercise

5 0

2 years ago

What are some modern uses for infrasound example, ultrasound can be used in the medical field to look inside people. Thanks!

lyudmila [28]

Infrasound sound is any sound that are below the sound a human can hear, elephants use it to communicate with other elephants.

5 0

3 years ago

PLEASE HELP ME EXPLAIN THESE QUESTIONS IT'S FOR ANATOMY AND PHYS

NeX [460]

Answer:

I tried

Explanation:

You have to check a 12 year olds respiration rate by Siting them down and trying to relax. It's best to take the respiratory rate while sitting up in a chair or in bed. Measure their breathing rate by counting the number of times their chest or abdomen rises over the course of one minute. Then Record this number. Now you have to answer the first few questions based on that.

Heart rate, blood pressure, respiratory rate and temperature are the big four vital signs.

8. Secondary assessments are used in order to determine the injury, how the injury occurred, how severe the injury is, and to eliminate further injury and that is why it is important.

9. It should only be performed when a person shows no signs of life or when they are unconscious, unresponsive, not breathing or not breathing normally.

In order to perform CPR, you need to check the scene and the person. Make sure the scene is safe, then tap the person on the shoulder and shout "Are you OK?" to ensure that the person needs help. Then pen the airway, Check for breathing, Push hard, push fast, deliver rescue breaths, continue CPR steps.

4 0

2 years ago

Convert 37.45 kilometers to meters. A.3745 m B. 37,450 m C. 3.745 m D. 0.03745 m

lbvjy [14]

Answer: 37,450

Explanation:

6 0

2 years ago

Read 2 more answers

Which of the following is an arithmetic sequence? A. 2, 1, 4, 3, 6, 5, …

sergey [27]

Explanation: