Answer:
Part a)
at t = 3.00 s
at t = 20.0 s
Part b)
at t = 3.00 s
at t = 20.0 s
Explanation:
The car starts at x = 0
Part a)
Now at t = 3.00 s
the position of the car is given as x = 25 m and its speed is given as v = 11 m/s
Now for average velocity we have
Now for average acceleration we have
Part b)
Now at t = 20.0 s
the position of the car is given as x = 385 m and its speed is given as v = 45 m/s
Now for average velocity we have
Now for average acceleration we have
Answer:
An object's acceleration is the rate its velocity (speed and direction) changes. Therefore, an object can accelerate even if its speed is constant - if its direction changes. If an object's velocity is constant, however, its acceleration will be zero.
The Ohio Constitution lays out a three-part government with legislative, executive, and judicial branches just like the US Constitution. But the Ohio Constitution incorporates more elements of direct democracy and has a stronger legislative branch relative to the executive. Hopes this helps!
Answer:
When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Once on the surface, the water evaporates. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
Explanation:
The system can respond to internal and external influences and make adjustments to keep your body within a degree or two of your normal. The hypothalamus and your autonomic nervous system work with your skin, sweat glands, muscles and even your blood vessels to keep your temperature normal. As in other mammals, thermoregulation is an important aspect of human homeostasis. Most body heat is generated in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. Some nuts like peanuts, almonds, cashews, pistachios, and dates are also beneficial in winter. These nuts speed up your metabolism and increase your body temperature, eventually making you feel hot.
