Answer:
lol do you still need help?
Explanation:
Answer:37 J
Explanation:
Given
Step :1
Heat added Q=44 J
Work done=-20 J
![\Delta E_1=Q+W=44-20=24 J](https://tex.z-dn.net/?f=%5CDelta%20E_1%3DQ%2BW%3D44-20%3D24%20J)
Step :2
Heat added Q=-61 J
work done ![W_2](https://tex.z-dn.net/?f=W_2)
![\Delta E_2=Q+W_2](https://tex.z-dn.net/?f=%5CDelta%20E_2%3DQ%2BW_2)
![\Delta E_2=61+W_2](https://tex.z-dn.net/?f=%5CDelta%20E_2%3D61%2BW_2)
![\Delta E_1+\Delta E_2=0](https://tex.z-dn.net/?f=%5CDelta%20E_1%2B%5CDelta%20E_2%3D0)
as the process is cyclic
![44-20-61+W_2=0](https://tex.z-dn.net/?f=44-20-61%2BW_2%3D0)
![W_2=37 J](https://tex.z-dn.net/?f=W_2%3D37%20J)
work done in compression is 37 J
A motorboat accelerates uniformly from a velocity of 6.5m/s
to the west to a velocity of 1.5m/s to the west. if its accelerate was 2.7m/s2
to the east ,
how far did it travel during the accelration? Give your
answer in units of kilometers per hour/sec. To find the acceleration of the car
we have to
<span>
1. First determine
the suitable formula for this word problem.
Which is a. A=vf-vi/t</span>
which will be
Given are: Vi= 6.5 m/s Vf= 1.5 m/s a= 2.7 m/sec2 t=1.85s
Solution:
<span>
x = v0t + ½at2</span>
<span>x = <span>16.645375 m </span></span>
Answer:
Low-cost energy. Although building nuclear power plants has a high initial cost, it’s relatively cheap to produce energy from them and they have low operating costs.
Reliable. One of the biggest benefits of nuclear energy is that it is a reliable power generation source.
Zero carbon emissions. Nuclear power reactors do not produce any carbon emissions.
Promising future energy supply.
Answer: KE = 25 J
Explanation: You must use the formula
KE = 1/2 m v²
to solve this problem.
KE = 1/2 (10 Kg) (5 m/s)
KE = 1/2 (50 kgm/s)
KE = 25 J