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jeka57 [31]
3 years ago
12

Which type of border shows the division between Sonora and Chihuahua?

Physics
1 answer:
KonstantinChe [14]3 years ago
7 0
The answer is the national border
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A 77-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.
jekas [21]

Answer:

Explanation:

From the question, we can see that the elevator is at a constant speed, invariably, acceleration is zero. And thus, there is no external force acting in the man, asides from force of gravitation acting on the man between those 5s. Now, we solve the question using newton's second law of motion.

The second law of motion states that, "the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object."

Summation Fy = ma(y)

F(n) - F(g) = 0

F(n) - mg = 0

F(n) = mg

F(n) = 77*9.81

F(n) = 755.37N

6 0
3 years ago
Read 2 more answers
Total energy input is 1400 and my efficiency is 80% so what is the useful energy output in jules?
Ierofanga [76]

Answer

1400 * 0.8 = 1,120

the useful energy output is 1,120 joules

4 0
4 years ago
Select all that apply so it’s not just one answer. please and thanks :))
qwelly [4]
Using sources that are peer reviewed
7 0
3 years ago
Consider a turntable to be a circular disk of moment of inertia It rotating at a constant angular velocity ωi around an axis thr
Rom4ik [11]

Answer:

Note: Angular momentum is always conserved in a collision.

The initial angular momentum of the system is

L = ( It ) ( ωi )

where It = moment of inertia of the rotating circular disc,

ωi = angular velocity of the rotating circular disc

The final angular momentum is

L = ( It + Ir ) ( ωf )

where ωf is the final angular velocity of the system.

Since the two angular momenta are equal, we see that

( It ) ( ωi ) = ( It + Ir ) ( ωf )

so making ωf the subject of the formula

ωf = [ ( It ) / ( It + Ir ) ] ωi

Explanation:

7 0
3 years ago
HURRY!
arsen [322]

Answer:

changes direction

changes speed

bounces off the boundary

8 0
3 years ago
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