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ozzi
3 years ago
5

Please answermy quastions​

Physics
1 answer:
Neko [114]3 years ago
6 0

Answer:

a) 120 N

b) 5 N

c) 0.2 N

d) Mass remains the same, and weight decreases.

Explanation:

<em>Use the formula W = mg, where mass is in kg, and gravitational field strength in N/kg.</em>

a)

W = mg

= 12 × 10

= <u>120 N</u>

b)

500 g = 0.5 kg

W = mg

= 0.5 × 10

= <u>5 N</u>

c)

20 g = 0.02 kg

W = mg

= 0.02 × 10

= <u>0.2 N</u>

d)

<u>Mass remains the same, and weight decreases.</u>

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Robin Hood wishes to split an arrow already in the bull's-eye of a target 40 m away.
tamaranim1 [39]

Answer:

5.843 m

Explanation:

suppose that the arrow leave the bow with a horizontal speed , towards he bull's eye.

lets consider that horizontal motion

distance = speed * time

time = 40/ 37 = 1.081 s

arrow doesnot have a initial vertical velocity component. but it has a vertical motion due to gravity , which may cause a miss of the target.

applying motion equation

(assume g = 10 m/s²)

s=ut+\frac{1}{2}*gt^{2}  \\= 0+\frac{1}{2}*10*1.081^{2}\\= 5.843 m

Arrow misses the target by 5.843m ig the arrow us split horizontally

4 0
3 years ago
Help!?!? Please and thank you
natita [175]
C is probably the correct one
3 0
3 years ago
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Which of the following are ways the rising human population can lower their impact on the Earth's spheres and climate change? Se
Tju [1.3M]

a and c because its right im out of college

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Which of these instruments is listed with the wrong type of lens that it uses?
VikaD [51]

The wrong type of lens-Microscope, concave

Explanation:

A microscope Basically  uses t<u>wo convex lenses to magnify an object, or specimen.</u>

There are  2 lenses in a microscope

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How long will the ball be in the air if the cliff is 120 m tall and the ball falls to the base of the cliff?
Readme [11.4K]

Answer:

Explanation:

4.95s≈5s

Use equation :

h=G*t²/2

h=120m ----hight of cliff

G=9.81m/s²

t=?

-----------------------

h=G*t²/2

120m=9.81m/s²*t²/2

240m=9.81m/s²*t²

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3 years ago
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