1. An apple has a mass of 297 grams. How many kilograms is this? Prefix
kilo-
Symbol
k
Meaning
1,000
hecto-
h
100
d
deci-
centi-
С
milli-
m
1/10
1/100
1/1,000
1/1,000,000
1/1,000,000,000
micro-
nano-
n
O A.0.297 kg
O B. 29.7 kg
O C. 2,970 kg
OD. 297,000 kg

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?