Answer:
No
Explanation:
From the analogy of the problem we are made to know that "a man standing on the earth can exert the same force with his legs as when he is standing on the moon".
This force he is exerting is due to his weight. If he can have the same weight on the earth and moon, therefore:
weight = mass x acceleration due gravity
His mass and acceleration due to gravity on both terrestrial bodies are the same.
So, his jump height will be the same on earth and on the moon.
In summary, we have been shown that his mass and the acceleration due to gravity on both planets are the same, therefore, his weight will also be the same. His jump height will also be same.
Answer:
1.2825 * 10^3 kg/m³
Explanation:
Given that :
Mass of aluminum ball (m1) = 4kg
Apparent mass of ball (m2) = 2.10 kg
Density of aluminum (d1) = 2.7 * 10^3 kg/m³
Density of liquid (d2) =?
Using the relation :
d1 / d2 = m1 / (m2 - m1)
(2.7 * 10^3) / d2 = 4 / (4 - 2.10)
2700 / d2 = 4 / 1.9
4 * d2 = 2700 * 1.9
4 * d2 = 5130
d2 = 5130 / 4
d2 = 1282.5 kg/m³
Hence, density of liquid = 1.2825 * 10^3
Answer:
Wrap a wire around a nail and pass electricity through a wire.
Explanation:
A graduated cylinder measures volume. This helps find density because:
Density = Mass / Volume
Answer:
(I). The sum of the vectors is (7i-5j).
(II). The sum of the vectors is (8i+7j).
Explanation:
Given that,
(I). Vector A 
Vector B 
Suppose, (II). Vector A 
Vector B 
(I). We need to calculate the sum of the vectors
Using formula of sum
Where,
![\vec{C}= sum of the vector A and bPut the value into the formula[tex]\vec{C}=(3i-12j)+(4i+7j)](https://tex.z-dn.net/?f=%5Cvec%7BC%7D%3D%20sum%20of%20the%20vector%20A%20and%20b%3C%2Fp%3E%3Cp%3EPut%20the%20value%20into%20the%20formula%3C%2Fp%3E%3Cp%3E%5Btex%5D%5Cvec%7BC%7D%3D%283i-12j%29%2B%284i%2B7j%29)
(II). We need to calculate the sum of the vectors
Using formula of sum
Put the value into the formula
Hence, The sum of the vectors is (7i-5j).
The sum of the vectors is (8i+7j).
