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Y_Kistochka [10]
4 years ago
15

What gives the flow of time

Physics
1 answer:
givi [52]4 years ago
5 0
The gravity of matter and ageing
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Mark and Balthazar are preparing to conduct neutralization reactions in which they add a base to two different solutions, citric
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Lab safety equipment prevents damage from accidents and helps keep the people working in the lab safe. The equipment goes hand in hand with the clothing of the person. The first step would be to wear closed shoes and a lab coat.
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4 years ago
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The moment arm of the biceps is approximately 2 cm from the axis of rotation of the elbow and the force vector representing the
Rom4ik [11]

Answer:

F = 150.6 N

Rx = 63.65 N

Ry = - 115.5 N

orientation is - 61.14 degree  with horizontal

Explanation:

given data

moment arm m  = 2 cm

angel = 115 degree

distance = 13 cm

force = 21 N

to find out

muscle force, vertical component force , horizontal component force , orientation

solution

we consider here Ra and Rb is reaction upside  and

we know moment formula that is

moment at joint  = F × sin(θ) × m - force × distance

0 = F  × sin(115) × 2 - 21 × 13

F = 150.6 N

so

for horizontal component

sum of horizontal force = Rx + Fcosθ

0 =  Rx + (150.6) cos115

Rx = 63.65 N

and

for vertical component

sum of vertical force = Ry + Fsinθ

0 =  Ry + (150.6) sin(115)

Ry = - 115.5 N

and

reaction direction are

tan∅ = Ry / Rx

tan∅ = -115.5 / 63.65

∅  = - 61.14 degree

so orientation is - 61.14 degree  with horizontal

6 0
3 years ago
Which has more thermal energy, 1 kg of aluminum at 20°c or 1 kg of gold at 20°c
IgorC [24]
It would be 1kg of gold at 20c
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Different units used to describe average velocity can be changed from one to another by the use of
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4 0
3 years ago
While in a park, you walk west for 52 m, then you walk 34.6° north of west for 44 m, and finally you walk due north for 25 m. Fi
Georgia [21]

Answer:

88m west and 50m north

Explanation:

1. Find the components of each vector in x and y:

(Please see the picture below)

- Vector 1:

Fx = 52m

Fy = 0m

- Vector 2:

Fx = 44m*cos34.6

Fy = 44m*sin34.6

- Vector 3:

Fx = 0m

Fy = 25m

2. Find the components of the final displacement acting in x and y:

For west direction:

Rx = 52m + 44m*cos34.6 + 0

Rx = 88m

For north direction:

Ry = 0 + 44m*sin34.6 + 25m

Ry = 50m

8 0
4 years ago
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