Why spark is produced when two substances are struck hard against each other ?
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Why spark is produced when two substances are struck hard against each other ?
Why spark is produced when two substances are struck hard against each other ?
Work is converted into heat.