The state of matter that has particles that slide by one another is liquid because liquid is very slippery.
Yes the answer is correct
Answer:
Heat required = mass× latent heat Q = 0.15 × 871 ×
Answer:

Explanation:
Time to mow 1 lawn by Wilma is 80 minutes
so work done in 1 minute by Wilma is given as
Similarly Rocky mow same lawn in 120 minute
so work done in 1 minute by Rocky is given as

now we know that they both worked by "t" time
so total work performed by them

they both mow 2 lawns then it is given as

