Answer:
3m
Explanation:
p=250w
m=25.5
t=3.0s
D=x
F=mxa F= 25.5kg x 9.8m/s^2 =250N
D= 250wx3.0s/250w
3m
Burning a log of wood is an example of a chemical change
Answer: a. both reliable and valid
The parameters used to describe a particular trait or characteristic in a human behavior should be reliable and valid, in order to determine the response of the population with respect to a particular stimulus.
Answer: A.Math plays a vital role in scientists’ search for alien life as it helps them determine where and when life might exist and communicate with it.
Explanation:
this is the only one i had found that was better than all of them....i hope it's correct, let me know if it isn't.
Answer:
562.5J
Explanation:
The following were obtained from the question:
F = 45N
d = 12.5m
w =?
The work done can be achieved by using
w = F x d
w = 45 x 12.5
w = 562.5J
