Potential energy due to gravity = Ep = mgh [symbols have their usual meaning ]
Evidently, HALVING the mass will make Ep , HALF its previous value. So, It will be halved.
Answer:
i) E = 269 [MJ] ii)v = 116 [m/s]
Explanation:
This is a problem that encompasses the work and principle of energy conservation.
In this way, we establish the equation for the principle of conservation and energy.
i)
![W_{1-2}= (F*d) - (m*g*h)\\W_{1-2}=(500000*2.5*10^3)-(40000*9.81*2.5*10^3)\\W_{1-2}= 269*10^6[J] or 269 [MJ]](https://tex.z-dn.net/?f=W_%7B1-2%7D%3D%20%28F%2Ad%29%20-%20%28m%2Ag%2Ah%29%5C%5CW_%7B1-2%7D%3D%28500000%2A2.5%2A10%5E3%29-%2840000%2A9.81%2A2.5%2A10%5E3%29%5C%5CW_%7B1-2%7D%3D%20269%2A10%5E6%5BJ%5D%20or%20269%20%5BMJ%5D)
At that point the speed 1 is equal to zero, since the maximum height achieved was 2.5 [km]. So this calculated work corresponds to the energy of the rocket.
Er = 269*10^6[J]
ii ) With the energy calculated at the previous point, we can calculate the speed developed.
![E_{k2}=0.5*m*v^2\\269*10^6=0.5*40000*v^2\\v=\sqrt{\frac{269*10^6}{0.5*40000} }\\ v=116[m/s]](https://tex.z-dn.net/?f=E_%7Bk2%7D%3D0.5%2Am%2Av%5E2%5C%5C269%2A10%5E6%3D0.5%2A40000%2Av%5E2%5C%5Cv%3D%5Csqrt%7B%5Cfrac%7B269%2A10%5E6%7D%7B0.5%2A40000%7D%20%7D%5C%5C%20v%3D116%5Bm%2Fs%5D)
Answer:
Gregorian calendar
Explanation:
Some types of calendar available are
- Gregorian calendar
- Julian calendar
- Islamic calendar
- Solar Hijri calendar
- Hebrew calendar
Gregorian calendar: January 1st is new year and it the most widely used calendar in the world.
Julian calendar: January 14th is new year.
Islamic calendar: it follow the phase of the moon and those not regard seasons.
Solar hijri calendar: 21st of March is new year.
Hebrew calendar: 18th September will be the new year for 2020 in the Hebrew calendar.
The average velocity of the fly between 0 and 15 seconds will be 10 m/sec.Velocity is the time-based component.
<h3>What is average velocity?</h3>
The average velocity is the ratio of the total distance traveled to the total time taken by the body. Its unit is m/sec.
From the given graph it is obsderved that the displacement from 0 to 15 seconds will be 150 m.
Hence the average velocity of the fly between 0 and 15 seconds will be 10 m/sec.
To learn more about the average velocity refer to the link;
brainly.com/question/862972
#SPJ4
Answer:
The <u>terminal buttons</u> of a neuron contain <u>synaptic vesicles</u> that house neurotransmitters
Explanation:
<em><u>Some terms explained:</u></em>
Terminal buttons:
The terminal Buttons of a neuron contain vesicles holding the neurotransmitters, they are the small knobs at the end of the neuron that send out information to other neurons. The terminal buttons essentially convert the electrical signals that reaches it into chemical signals.
Neurotransmitters:
Neurotransmitters are produced by the neurons in the axon terminal buttons and stored in the synaptic vesicles. Neurotransmitters are chemicals contained in terminal buttons that relays signals across the synapses between neurons. Neurotransmitters are the chemical messengers of the nervous system, they have an excitatory or inhibitory effect on another neuron.
Synaptic vesicles:
Synaptic vesicles are sacs in terminal button, they store neurotransmitters and release them into synaptic space in response to electrical signaling within the cell.
