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denis-greek [22]
2 years ago
7

Help on these two thanks

Physics
2 answers:
egoroff_w [7]2 years ago
6 0

Answer:

8. Friction

9. Net force

Explanation:

Hope this helps you. Have a nice day. :)

OLEGan [10]2 years ago
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It dont have the subject science so it science
WINSTONCH [101]

Answer:

The human activity that uses the most water worldwide is for agriculture. In other words, watering crops.

Explanation:

pls mark brainliest

7 0
2 years ago
Hurricanes are considered____ because they lose power over cool waters or land A. Short-lived B. Heat engines C. Weak
klasskru [66]
My best guess would be heat engines
7 0
3 years ago
Read 2 more answers
A hydraulic system for a dentist's chair is designed to be able to lift 3,112 newtons. The surface area over which this force is
In-s [12.5K]

Answer:

13.8 N

Explanation:

Pressure on the one end of the hydraulic system = Pressure on the other end

Pressure = Force / Area where Force is in Newton, area is in m²

so Force of one end (F1) / area of that end = force of the other end (F2) / area of that end

3112 / ( 707 /10000) in m² = F2 / ( 3.14 / 10000) in m²

cross multiply

44016.97 × 0.000314 = 13.82 N

5 0
2 years ago
Starting at (0,0) an object travels 36 meters north and then it covers 20 meters east. What is
Svetradugi [14.3K]

Answer:

Explanation:

Using the pythagoras theorem, the displacement is expressed as;

d² = x²+y²

y = 36m (north)

x = 20m east

Substitute;

d² = 36²+20²

d² = 1296+400

d² = 1696

d = √1696

d = 41.18m

For the direction;

theta = tan^-1(y/x)

theta = tan^-1(36/20)

theta = tan^-1(1.8)

theta = 60.95°

Hence the magnitude is 41.18m and the direction is 60.95°

8 0
3 years ago
Which of the following is a nonferromagnetic material? (a) aluminum (b) iron (c) cobalt (d) gadolinium
ivolga24 [154]

Answer:

A

Explanation:

Iron and gadlinium are both very easily made into magnetic substances.  Cobalt is also capable of being magnetized. Aluminum, put in an alloy, can make a magnetic substance, but

Aluminum by itself is not able to be magnetized.

5 0
2 years ago
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