Answer:
using the lens formula: 1/f = 1/u + 1/v
focal length f = -30 (negative because it is concave lens)
object distance u = 60
image distance v= unknown
1/-30 = 1/60 + 1/v
v = -20
So, the image is 20cm from lens (on the same side along with the object), and it is virtual (because of negative sign) and erect (concave lens must produce erect images).
Answer: increase in speed can cause a large increase in kinetic energy if you double the mass, then you double the kinetic energy or when the faster something is moving, the greater the force it is capable of exerting and the greater energy it possesses.
Hope this helps!
Answer:
D) 19.8 lbs
Explanation:
1kg in household measurement is equal to 35.274 ounces. 35.274*9=317.466 ounces.
1kg is also equal to 2.205 lbs. 9*2.205=19.8416
9 kg is also equal to 9000 grams, but grams are not a part of the household measurement system
a) 9000 grams. b) 9000 ounces. c) 19.8 ounces. d) 19.8 pounds.
This leaves us with 19.8 lbs
Answer:
Hey mate.....
Explanation:
This is ur answer....
<em>A human has 4 types of teeth:-</em>
<em>--> 8 Incisors.
</em>
<em>--> 4 Canines.
</em>
<em>--> 8 Premolars.
</em>
<em>--> 12 Molars (including 4 wisdom teeth)</em>
<em></em>
Hope it helps!
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Answer:
Four basic fources.
Explanation:
Fundamental force, also called fundamental interaction, in physics, any of the four basic forces—gravitational, electromagnetic, strong, and weak—that govern how objects or particles interact and how certain particles decay. All the known forces of nature can be traced to these fundamental forces.