Answer:
A man exerted a push of 500 N.A.will he able to move the wheel barrow?
The man would bot be able to move the wheel barrow because, the force which he exerted is less than the force at which the barrow is resting.
B.suppose another man tried to help him and exerted a force of 500 N.will they able to move the wheel barrow?
No, the force which both of them exerts on the wheelbarrow will be equal to the force at which the wheelbarrow containing the stone is when at rest.
C.another man saw their struggle in pushing the wheel barrow.he tried to help them.he exerted force of 400 N.will the three of them move the wheel barrow?
Yes, the three men would now be able to move the wheelbarrow since their total forces is greater than the force of the wheelbarrow containing the stones.
Explanation:
Answer: railroads were built with assistance from the federal government through land grants.
Explanation:
Answer:
China’s greater involvement with world grain trade; through greater reliance on grain imports, China will pay less for grain than it would adhering to strict self-sufficiency. Despite potentially mutual benefits, however, the successful transition of China’s grain policy will be impossible without a favorable environment at both internal and external levels. China’s movement toward trade liberalization is confronted with China’s concerns over its food security, possible farmer unemployment, and international payments. To aid China in overcoming many difficulties, measures taken by the international community will be crucial to encourage a smooth transition in China’s grain trade policy.
Explanation:
