the fig above shows three different ways of hanging a hea...
the fig above shows three different ways of hanging a heavy picture from a hook. the tension in the string will be?
Greatest in X
Greatest in Y
Greatest in Z
Same in each one
Correct answer is B
Gravity is always directed in a vertical fashion at X (i.e. 90 degrees which is where tension will be minimum).
The more horizontally aligned the cable is, the more it will pull horizontally. This increased horizontal pull will increase the tension in the cable.
Which of the following statements is not true? ...
A swinging pendulum between the rest position and its maximum displacement possesses ...
The main function of the commutator in a simple d.c. motor is to ...
Resonance occurs when one vibrating object causes a second object to vibrate at its own natural ...
Both γ-rays and X-rays i. can be produced by thermionic emission ii. have low frequencies i...