Answer:

Explanation:
let A represent me and B represent my friend
A speed
=30 m/hr toward west
B speed
=40 m/hr toward south
after 1/2 hr
total distance cover by A =1/2 * 30 miles = 15 miles
total distance by B = 1/2*40 miles = 20 miles
now from figure


Differentiate above equation




To find the mass of benzene, we must first solve for the volume of benzene inside the cylindrical drum. To calculate the volume of the partially filled cylindrical drum, refer to the working formula below:
Volume = L {(R^2)cos-1[(R-H)/R)] - (R-H)(2RH-H^2)^0.5}
Where:
L = length of the drum = 2 meters
R = radius of the drum = 4 meters
H = height of the liquid = 0.85 meter
substituting the given to the formula, we get
Volume = 5.087 m3
To solve for the mass of benzene, we must multiply the volume with the density.
Density = 0.879 g/cm3 or 879 kg/m3
Mass of benzene = Volume x Density
Mass of benzene = 5.087 x 879 = 4,471.5 kg
<em>ANSWER: Mass of benzene = 4,471.5 kg</em>
Answer:
A.speed
Explanation:
I didn't quite get the question but hope this helps
I believe the correct answer from the choices listed above is option B. <span>The blades of the scissors are a pair of </span>wedges<span> in a cross shape which pivot around a fulcrum. The attached handles are </span>levers. So, <span>two levers and two wedges
</span>