Answer: 
Step-by-step explanation:
Given: Mass of baseball=0.145 kg
Speed of baseball=40 meters per second
Also it is given that The kinetic energy (in joules) of a moving object can be calculated from the expression
, where 'm' is the mass of the object in kilograms and 'v' is its speed in meters per second.
Thus, the kinetic energy of baseball=

The distance travelled by the car will be 3.6km in 2 minutes.
<u>Explanation:</u>
Given:
Speed, s = 108 km/hr
s in km/min = ?
1 hr = 60 min
So,
108 km/hr = 
= 1.8 km/min
time, t = 2 min
Distance, d = ?
We know:
distance = speed X time

Therefore, the distance travelled by the car will be 3.6km in 2 minutes.
Answer: 168 hours
Step-by-step explanation:
There are 24 hours in a day. Thus, simply multiply 7*24 to get 168.
HE WOULD PAY $5.52 FOR 12 STAMPS BECAUSE 8.28/18=0.46 THE YOU USE 0.46 X 12 = AND GET $5.52
4(610-15)+0.4
first you have to distribute the 4 to what is inside the paranthesis
(4×610)-(4×15)+0.4
2440-60+0.4=2380.4