A child is sledding. He starts at the top of the hill with a velocity of zero, and 3 seconds later he is speeding down the hill at 12 meters per second. What is the child's acceleration?
Answers
Magnitude of acceleration = (change of speed) / (time for the change) =
(12 m/s - 0) / (3 sec) =
12/3 = 4 m/s²
What's a challenge question ? Have we all passed the event horizon
and been spaghettified without knowing it ?
Related Questions
What are two ways that the Earth's atmosphere is important to life on Earth?
How does the sun cause wind?
To calculate power, divide the amount of energy transferred by...?
A 2-kg bowling ball sits on top of a building that is 40 meters tall. Circle one: KE / GPE / both Show your work for finding the values of each type of energy the object has:2. A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall. Circle one: KE / GPE / both Show your work for finding the values of each type of energy the object has: 3. A 2-kg bowling ball rolls at a speed of 10 m/s on the ground. Circle one: KE / GPE / both Show your work for finding the values of each type of energy the object has: 1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?2. A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at? 3. A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. What is its speed? What is its height?
Answers
Plants and Bacteria have rigid cell walls, but not blood cells!
Animal cells haven't got rigid cell wall.
Answers
Final answer:
Scientists use analysis methods when developing new technology to enhance effectiveness and guide future research. This process involves using models, theories, laws, and analytical techniques to interpret data and test hypotheses, leading to continuous advancements across various fields.
Explanation:
Scientists use analysis methods when developing new technology to ensure the accuracy, efficiency, and effectiveness of their designs. The analytical process includes the use of models, theories, and laws to help interpret the data collected and guide future research directions. New technologies, such as mass spectrometry in protein analysis or enhanced microscopy techniques in physics, rely heavily on these analysis methods for progress and innovation.
Additionally, the process of testing and refining a hypothesis through experimentation and data analysis is at the heart of scientific inquiry. This systematic approach feeds into the development of new technology, contributing to the accuracy and reliability of the findings. Upon analyzing the results, scientists formulate new ideas that push the envelope of what is technologically possible.
Lastly, advancements in technology, whether they be in the realm of hardware or software, often drive discoveries in other fields. For example, breakthroughs in engineering have often led to significant developments in biology and chemistry. Therefore, the use of analysis methods in the development of new technology is not only crucial for the enhancement of the technology itself but also for its subsequent impact on other disciplines.
Learn more about Analysis Methods in New Technology here:
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Answers
Fossil fuels are easy to find beneath the earths surface , fossil fuels has unlimited potential, and fossil fuels are very cost effective, especially coal.
Disadvantages
Burning fossil fuels can cause greenhouse effect which is harming the environment and mining fossil fuels may also endanger the lives of animals.
Answers
Answer:
3680 J
Explanation:
The kinetic energy of an object is given by:
where
m is the mass of the object
v is the speed of the object
In this problem, we have
m = 115 kg is the combined mass of the bycicle and the rider
v = 8 m/s is the speed
Substituting numbers into the formula, we find
Answer:
3680 J
Explanation:
The kinetic energy of an object is given by:
where
m is the mass of the object
v is the speed of the object
In this problem, we have
m = 115 kg is the combined mass of the bycicle and the rider
v = 8 m/s is the speed
Substituting numbers into the formula, we find
Answers
two or more electrical devices in a circuit can be connected by series connections or by parallel connections. When all the devices are connected using parallel connections, the circuit is referred to as a parallel circuit.
They're the circuits in which each end of one component is connected to one end of the other component.
If you have a picture of some circuits to pick the parallel ones from, it's a mystery to me why you haven't posted the picture too.
Answers
The bacteria being a prokaryote have free-floating DNA in their cytoplasm as their control center.
What is DNA?
DNA has been defined as the genetic material present in major organisms including prokaryotes and eukaryotes. It consists of hereditary information that is passed on from one generation to another.
The bacteria being a prokaryote has their genetic material (DNA) in a free-floating state in the cytoplasm rather than being constrained in a nuclear envelope, unlike the eukaryotes.
DNA acts as the control center for the bacteria as it codes for genetic information, metabolism, and development and regulates all cellular activities as well.
Therefore, DNA is the control center of the bacterial cells.
Learn more about prokaryotic DNA, here:
brainly.com/question/319592
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Till then. -ayeitswesley