114 kmh is the average speed.
= 1425/12.5
Answer:
Object A will get 200 & object B will get 400 Potential Energy
Explanation:
Potential Energy = mgh (mass x gravity x height)
For Object A :-
2 (mass) x 10 (approx gravity on Earth) x 10 (distance/height)
= 200
For Object B :-
4 x 10 x 10
= 400
Hence Object B will have High Potential Force than A.
Hope it helps. Thanks
Answer:
208m
Explanation:
since the angle is with the ground which gives a horizontal component to the velocity = v(cos)30°
so the velocity equals 40(cos)30°= 34.64m/s
range(distance) = speed × time
34.64m/s × 6s = 207.8m = 208m
Answer : The specific heat capacity of the alloy ![1.422J/g^oC](https://tex.z-dn.net/?f=1.422J%2Fg%5EoC)
Explanation :
In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.
![q_1=-q_2](https://tex.z-dn.net/?f=q_1%3D-q_2)
![m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)](https://tex.z-dn.net/?f=m_1%5Ctimes%20c_1%5Ctimes%20%28T_f-T_1%29%3D-m_2%5Ctimes%20c_2%5Ctimes%20%28T_f-T_2%29)
where,
= specific heat of alloy = ?
= specific heat of water = ![4.18J/g^oC](https://tex.z-dn.net/?f=4.18J%2Fg%5EoC)
= mass of alloy = 21.6 g
= mass of water = 50.0 g
= final temperature of system = ![31.10^oC](https://tex.z-dn.net/?f=31.10%5EoC)
= initial temperature of alloy = ![93.00^oC](https://tex.z-dn.net/?f=93.00%5EoC)
= initial temperature of water = ![22.00^oC](https://tex.z-dn.net/?f=22.00%5EoC)
Now put all the given values in the above formula, we get
![21.6g\times c_1\times (31.10-93.00)^oC=-50.0g\times 4.18J/g^oC\times (31.10-22.00)^oC](https://tex.z-dn.net/?f=21.6g%5Ctimes%20c_1%5Ctimes%20%2831.10-93.00%29%5EoC%3D-50.0g%5Ctimes%204.18J%2Fg%5EoC%5Ctimes%20%2831.10-22.00%29%5EoC)
![c_1=1.422J/g^oC](https://tex.z-dn.net/?f=c_1%3D1.422J%2Fg%5EoC)
Therefore, the specific heat capacity of the alloy ![1.422J/g^oC](https://tex.z-dn.net/?f=1.422J%2Fg%5EoC)
Answer: Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.