Help please, I need it
...
Answers: 1
Physics, 21.06.2019 20:30
When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m
Answers: 2
Physics, 21.06.2019 23:00
If an inclined plane is 5 m long and 2 m high, what is its mechanical advantage? a. 2.5 b. 3 c. 7 d. 10
Answers: 1
Physics, 22.06.2019 14:10
The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
Answers: 3
Biology, 26.01.2021 22:30
Mathematics, 26.01.2021 22:30
Mathematics, 26.01.2021 22:30
English, 26.01.2021 22:30
English, 26.01.2021 22:30
Mathematics, 26.01.2021 22:30
Mathematics, 26.01.2021 22:30
Mathematics, 26.01.2021 22:30