25.3kms-1
4.2kms-1
4.0kms-1
11.3kms-1
Correct answer is D
Vescape = \(\sqrt{2gR}\)
Vescape = \(\sqrt{2\times10\times6.4\times10^6}\)
Vescape = \(\sqrt{128000000}\)
Vescape = 11313.7085mS-1
Vescape = 11.313kmS-1
Which of the following statements is true? The frequency of a vibrating string is ...
The image is a plane mirror is ...
Which of the following statements about sound is NOT true? ...
According to Newton's law of cooling, the heat energy lost per unit area of a body depends on th...