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schepotkina [342]
2 years ago
8

7. Many medicines started out as natural products.Penicillin was originally made from _______________

Physics
2 answers:
Sholpan [36]2 years ago
7 0

Answer:

D

Explanation:

PCN was discovered in mold

larisa [96]2 years ago
6 0
B.Bark of a willow tree
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The focal length for a spherical convex mirror is –20 cm. What is its radius of curvature?
Svetradugi [14.3K]

Answer:

40 cm

Explanation:

The focus of a spherical convex mirror is the point at which the rays of an object converge in the infinite, it is also the point at which an object must be placed so that its image is formed in the infinite. The distance from the focus to the origin is called the focal length and is called f. It is related to the radius of the mirror, R, according to:

f=-\frac{R}{2}

rewriting for R:

R=-2f=-2*-20cm=40 cm.

4 0
3 years ago
A drag racing vehicle travels from zero to a hundred miles per hour and 5 seconds north what is acceleration
avanturin [10]
Acceleration(a) is the change in velocity(Δv) over the change in time(Δt). so just divide your velocity and time.
6 0
3 years ago
Which officeholders are elected by the electoral college
NikAS [45]

Answer:Electoral Vote

Explanation:i did it before

4 0
3 years ago
Questions:<br>(a) Why should the amplitude of oscillation be small on a pendulum experiment​
Snowcat [4.5K]
The formula for the pendulum experiment is based on the assumption that the amplitude is small so that the angle is approximately equal to the Sine of the angle.
5 0
3 years ago
What is the volume of a cone with a height of 27 cm
JulijaS [17]

Explanation:

→ Volume of cone = πr² × h/3

Here,

  • Radius (r) = 13 cm
  • Height (h) = 27 cm

→ Volume of cone = π(13)² × 27/3 cm³

→ Volume of cone = 169π × 9 cm³

→ Volume of cone = 1521π cm³

→ Volume of cone = 1521 × 22/7 cm³

→ Volume of cone = 33462/7 cm³

→ <u>Volume of cone = 4780.28 cm³</u>

4 0
3 years ago
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