The unit of work or energy in S.I. units is_______________?
The unit of work or energy in S.I. units is_______________?
A. newton
B. pascal
C. kilogram meter
D. watt
E. joule
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According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
Question: According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
[A].True [B].
False Answer: Option B
Explanation:
No answer description available for this question.
In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
Question: In the shown figure, if the angle of inclination of the plane is increased, then acceleration of the system will
[A].increase [B].
decrease [C].
remain the same Answer: Option B
Explanation:
No answer description available for this question.
If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.
Question: If a number of forces acting at a point be represented in magnitude and direction by the three sides of a triangle, taken in order, then the forces are not in equilibrium.
[A].Agree [B].
Disagree Answer: Option B
Explanation:
No answer description available for this question.
Determine the tension in the supporting cables BC and BD and the components of reaction at the ball-and-socket joint A of the boom. The boom supports a drum having a weight of 200 lb. at F. Points C and D lie in the xy plane.
Question: Determine the tension in the supporting cables BC and BD and the components of reaction at the ball-and-socket joint A of the boom. The boom supports a drum having a weight of 200 lb. at F. Points C and D lie in the xy plane.
[A].Ax = 0, Ay = 150 lb, Az = 562 lb, TBC = 300 lb, TBD = 212 lb [B].
Ax = 0, Ay = 150 lb, Az = 456 lb, TBC = 150 lb, TBD = 212 lb [C].
Ax = 0, Ay = 267 lb, Az = 843 lb, TBC = 533 lb, TBD = lb [D].
Ax = 0, Ay = 150 lb, Az = 500 lb, TBC = 212 lb, TBD = 212 lb Answer: Option A
Explanation:
No answer description available for this question.
In order to double the period of simple pendulum, the length of the string should be
Question: In order to double the period of simple pendulum, the length of the string should be
[A].halved [B].
doubled [C].
quadrupled Answer: Option C
Explanation:
No answer description available for this question.
A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is
Question: A block of mass m1, placed on an inclined smooth plane is connected by a light string passing over a smooth pulley to mass m2, which moves vertically downwards as shown in the below figure. The tension in the string is
[A].m1/m2 [B].
m1.g sin α [C].
m1.m2/m1+m2 [D].
Answer: Option D
Explanation:
No answer description available for this question.