Hi!
Got a question!
A bullet travels at a speed of 320 m/s. Write this speed in km/hr?
A.121Km/hr
B.1152Km/hr
C.52Km/hr
Thanks!
And please explain!

1152 km/hr

Step-by-step explanation:

60 seconds in a minute, 60 minutes in an hour, so 3600 seconds in an hour.

If it travels 320 meters in one second, multiply by 3600 for the total meters per hour: 1152000. Convert meters to kilometers. Divide by 1000.

Result: 1152 km/hr

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

step-by-step explanation:

4  

25

5258y

54.

t5

5r

54

5856

542

5458

86

.8558.65

565

565

55898

786

8/95

5896

8656265

556478