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just olya [345]
3 years ago
6

Name 3 devices or inventions which are designed to increase friction

Physics
1 answer:
melisa1 [442]3 years ago
5 0
Lubricants, Magnetic Levitation, and Ball Bearing. 
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a ball of mass 0.5 kg is released from rest at a height of 30 m. how fast is it going when it hits the ground? acceleration due
Vera_Pavlovna [14]

Answer:

24.25m/s

Explanation:

m = 0.5kg

u ( initial velocity) = 0m/s

v ( final velocity) =?

a = 9.8m/s^2

d (displacement) = 30m

Since u don't have time, u only have the choice to use this formula

V^2 = u^2 + 2ad

V^2 = 0 + 2 x 9.8 x 30

V^2 = 588

V = 24.25 m/s

8 0
3 years ago
The number of mushrooms needed by a pizza restaurant is given by the
creativ13 [48]

Answer: 24

Explanation:

Given the following equation:

g=3n

Where g is the number of mushrooms in a pizza and n the number of pizzas.

If we know the restaurant will make 8 pizzas (n=8), then:

g=3(8)

g=24 This is the needed number of mushrooms for 8 pizzas

6 0
3 years ago
When the leveling bulb is higher than the water level, the pressure in the system is greater than atmospheric pressure.
malfutka [58]

When the leveling bulb is higher than the water level, the pressure in the system is greater than atmospheric pressure. This statement is true.

In the physical sciences, pressure is defined as the stress at a point within a confined fluid or the perpendicular force per unit area. A 42-pound box with a bottom area of 84 square inches will impose pressure on a surface equal to the force divided by the area it is applied to, or half a pound per square inch.

Atmospheric pressure, which is roughly 15 pounds per square inch at sea level, is the weight of the atmosphere pressing down on each unit area of the Earth's surface. Pascals are used to express pressure in SI units; one pascal is equivalent to one newton per square meter. Almost 100,000 pascals of atmospheric pressure are present.

To learn more about pressure please visit-
brainly.com/question/12971272
#SPJ4

4 0
1 year ago
I beggggg youu to solve this for me, I'm giving you 60 POINTS !!!
djyliett [7]

Answer:

but where is the question ?

Explanation:

<em>hope</em><em> it</em><em> </em><em>works</em><em> out</em>

6 0
2 years ago
Read 2 more answers
A"car"initially"at"rest"experiences"a" constant"acceleration"along"a"horizontal" road."the"position"of"the"car"at"several" succe
marysya [2.9K]

In the process of peppering the question with those forty (40 !) un-necessary quotation marks, you neglected to actually show us the illustration.  So we have no information to describe the adjacent positions, and we're not able to come up with any answer to the question.

7 0
3 years ago
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