Answer:
a. center of mass acceleration supposed to be acceleration due to gravity, 9.81 m/s^2,
b. T1 = 9.81m1 N; c. T3 =9.81(M1+M2) N; d. T3-T1, e. (T3-T1)/M2; f. (M1+M2)T3/M3
Explanation:
In this frictionless, massless pulley system, the center of mass accelerates downward with an acceleration equal to the acceleration due to gravity. The tension in the string connected to mass M1 is equal to M1g, and the tension in the string connected to mass M2 is equal to m1g + M2g. The magnitudes of the accelerations of M1 and M2 are equal, and the sum of the tensions T1 and T2 is equal to the tension T3.
a. The center of mass accelerates: When considering the system as a whole, the acceleration of the center of mass is determined by the net external force acting on the system. In this case, the only external force is the force due to gravity. Therefore, the center of mass accelerates downward with an acceleration equal to g, the acceleration due to gravity.
b. T1 is equal to M1g: The tension in the string connected to mass M1 is equal to the weight of M1, which is given by the formula T1 = M1g.
c. T3 is equal to m1g + M2g: The tension in the string connected to mass M2 is equal to the sum of the weights of M1 and M2, which is given by the formula T3 = m1g + M2g.
d. T1 is equal to T2: Since the pulley is assumed to be frictionless and massless, the tension in the string connected to mass M1 is the same as the tension in the string connected to mass M2.
e. The magnitude of the acceleration of M2 is equal to the magnitude of the acceleration on M1: This is due to the constraint imposed by the tension in the string. Since the tension in the string connecting M1 and M2 is the same, their accelerations must also be the same.
f. T1 + T2 is equal to T3: The sum of the tensions T1 and T2 is equal to the tension T3, as the total force acting on mass M2 is equal to the sum of the individual tensions.
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B) These advancements do not contribute to the greenhouse effect.
Eliminate
C) These advancements use cleaner fuels thereby reducing pollution.
D) These advancements are very expensive and not available to everyone.
Technical advancements in transportation are very expensive and not available to everyone.
A revolution is currently taking place in transportation technology. While new ideas are ready to completely transform how we move, new technologies are increasing the effectiveness of existing transportation techniques.
The newest transportation revolution has seen a growth in different technologies.
Although these modern technologies are established to be environmental friendly, These advancements are very expensive and not available to everyone. This is one among the disadvantages of technological advances in transportation.
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Answer:
Option D
Explanation:
These advancements are very expensive and not available to everyone. The others are positive aspects of these advancements in transportation.
Answer: 12cm
Explanation:
Since first ball is raised to a height h1= 6cm, it gains a potential energy(PE1). On release, this PE1 is converted to kinetic Energy (KE1). This KE1 impact it energy on ball 2 ans it rise also. Since collision is elastic.
KE1 = KE2 ....> PE1 = PE2
m1 ×g × h1 = m2 × g× h2
h2 = m1×h1/m2
h2 = 0.4 × 0.06/0.2
h2 = 0.12m = 12cm
Explain your answer.
One of its main objectives is to support the implementation of an efficient land utilization system based on such a Land Resources ManagementSystem (LRMS) and a Geographical Information System (LIS) in order to introduce a digital land reform system.
Afforestation, good grazing and canal maintenance, control of pesticides and agricultural runoff, and correct use of wasteland and fallow land are procedures and measurement that should be implemented to safeguard land resources.
Conservation of Soil and Water in All Places
Terracing and reclaiming, erosion prevention, pumping stations and conservation, tree plantations, the growth of cash and horticultural crops, watershed management projects, the construction of agricultural ponds, and environmental protection projects in urban areas are only a few of the tasks undertaken underneath this scheme.
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