To solve this exercise,
the following speed equation must be applied:
V = d / t (mi/hr)
V: speed (mi/hr)
d: distance (mi)
t: time (s)
We know the distance (d= 5 miles) and the time (t= 0.2 hours), so
we proceed to replace these values in the formula to calculate the lion’s speed:
V = d / t
V = 5 mi/0.2 hr
V = 25 mi/hr
The lion’s speed is 25
mi/hr, so the last option is the right answer
We are given volume of gasoline = 15.58 L and
Density = 0.74 g/mL.
Density is given in grams(g) per milliliter (mL). So, we need to convert given volume in mL also.
We know, 1 litre = 1000 milliliters
Therefore, 15.58 L = 15.58 * 1000 mL = 15580 mL
We could rewrite,
Volume of gasoline = 15580 mL.
Formula for density is..
Density (ρ)= 
Plugging values in formula,
0.74 g/mL = 
Muliplying both sides by 15580.

11529.2g = mass.
Therefore, 11529.2g grams does 15.58 L of gasoline weigh.
Answer:
e
Explanation:
i took it myself and got it right
Answer:
6.8 mm
Explanation:
We are given that
Mass of block,m=10 kg
Mass of bullet,
1 kg=1000 g
Total mass of system,M=
Speed of bullet,u=300 m/s

By law of conservation of momentum


According to law of conservation of energy
Change in kinetic energy of system=Change in potential energy of system


Where 

1m=100 cm

Distance traveled by block=
1cm=10 mm
Answer:
mass of a object is the answer