How fast is her shadow lengthening?

How fast is her shadow lengthening? x = the length of the woman’s shadow. s = the distance from the pole to the woman. By similar triangles, H/h = (s + x)/x or Hx = h(s + x). dx/dt = 36/13 ft/sec = 2.77 ft/sec for how fast her shadow is lengthening. How fast is […]

Why Acid rain is harmful for us?

Why Acid rain is harmful for us? The pollution that causes acid rain can also create tiny particles. When these particles get into people’s lungs, they can cause health problems, or can make existing health problems worse. This ground-level ozone causes respiratory problems, like pneumonia and bronchitis, and can even cause permanent lung damage. Can […]

How can a change occurs in a substance?

How can a change occurs in a substance? Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. Can you eat […]

Does it rain more near the ocean?

Does it rain more near the ocean? For example, because the ocean releases heat more slowly than land, coastal areas tend to be more temperate. Warm water is also evaporated from the ocean into the atmosphere, where it can condense and form clouds, which can eventually lead to rain. Why do coastal areas have milder […]

What is standard cell in electrochemistry?

What is standard cell in electrochemistry? n. (Electronics) a voltaic cell producing a constant and accurately known electromotive force that can be used to calibrate voltage-measuring instruments. What is called standard cell? The standard cell potential is a measure of the driving force for the reaction. The potential of the cell under standard conditions (1 […]

How many times has Hubble been repaired?

How many times has Hubble been repaired? Hubble has been serviced five times. Here are the highlights of each servicing mission: Servicing Mission 1 – STS-61, December 1993: A corrective optics package was installed, and the Wide Field Planetary Camera was replaced with the Wide Field and Planetary Camera 2 (including an internal optical correction […]

What kind of person makes a successful entrepreneur?

What kind of person makes a successful entrepreneur? Passion, resourcefulness, willingness to improvise and listen to others and strong determination to succeed is what makes an entrepreneur successful. And this is what you have to keep in mind as well if you want to be a successful entrepreneur yourself. What are the skills of a […]

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