Answer:
The time spent in air by the car is 2.19 s
The height of the cliff is 58.5 m
Explanation:
Given;
initial velocity of the car, u = 16 m/s
horizontal distance traveled, R = 35 m
The horizontal distance or range of a projectile is given as;
R = vt
where;
t is the time spent in air by the projectile
t = R/v
t = 35 / 16
t = 2.19 s
The height of the cliff is given as;
h = ut + ¹/₂gt²
h = (16 x 2.19) + ¹/₂(9.8)(2.19)²
h = 58.5 m
Answer:
Explanation:
Using the lens formula
1//f = 1/u+1/v
f is the focal length of the lens
u is the object distance
v is the image distance
For convex lens
The focal length of a convex lens is positive and the image distance can either be negative or positive.
Given f = 20cm and u = 10cm
1/v = 1/f - 1/u
1/v = 1/20-1/10
1/v = (1-2)/20
1/V = -1/20
v = -20/1
v = -20 cm
Since the image distance is negative, this shows that the nature of the image formed by the convex lens is a <u>virtual image</u>
<u></u>
For concave lens
The focal length of a concave lens is negative and the image distance is negative.
Given f = -20cm and u = 10cm
1/v = 1/f - 1/u
1/v = -1/20-1/10
1/v = (-1-2)/20
1/V = -3/20
v = -20/3
v = -6.67 cm
Since the image distance is negative, this shows that the nature of the image formed by the concave lens is a <u>virtual image</u>
<u></u>
Answer:
hehe immm
Explanation:
i dont know because i am a big noon at stude if i dont study my mama gona use kuffu
Answer:
Option B
0.36 atm
Explanation:
Pt= P1+P2+P3
where Pt is the total pressure, P1, P2, P3 are pressure for respective gases
Substituting 0.9 atm for Pt, 0.26 for P1 and 0.28 for P2 then
0.9 at= 0.26 atm + 0.28 atm + P3
P3= 0.9-0.26-0.28= 0.36 atm
Therefore, the partial pressure of ammonia is 0.36 atm
Answer: The foot kicked the ball with alot of force the ball had force too so their toes are left stinging
Explanation: