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juin [17]
2 years ago
15

Daryl ties a rope to a brick and lifts the brick straight up. the free body diagram below shows the brick when it is suspended a

bove the ground. what is force 1 in this diagram

Physics
2 answers:
Neko [114]2 years ago
8 0

Answer: weight

Explanation: Apex

Aleks04 [339]2 years ago
7 0

Answer:

C. Tension

Explanation:

The tension in the cord occurs because of the muscle power of Daryl, who lifts the brick. While doing so, Daryl needs to overcome the gravitational pull on the brick.

EXTRA:

If the brick was much heavier, than Daryl's muscles would not be able to overcome the the gravitational pull on that brick, and then the much heavier brick would remain stationary on the ground, despite the efforts made by Daryl.

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The two loudspeakers in the drawing are producing identical sound waves. The waves spread out and overlap at the point P. What i
Damm [24]

Answer:

5/2π

Explanation:

According to quizlet the answer is 5/2π

5 0
3 years ago
A tank holds a 1.44-m thick layer of oil that floats on a 0.98-m thick layer of brine. Both liquids are clear and do not intermi
denpristay [2]

Answer:

Angle of ray makes with the vertical is 62.1 degree

Explanation:

As per the ray diagram we know that the angle of incidence on oil brine interface will be given as

tan\theta_i = \frac{0.7}{0.98}

\theta_i = 35.5^0

now by Snell'a law at that interface we have

\mu_1 sin\theta_i = \mu_2 sin \theta_r

now we will have

1.52  sin35.5 = 1.40 sin\theta_r

\theta_r = 39.12^0

now this is the angle of incidence for oil air interface

so now again by Snell's law we will have

\mu_2 sin\theta_i' = \mu_{air} sin\theta

1.40 sin39.12 = 1 sin\theta

\theta = 62.1^0

3 0
3 years ago
What are the two main categories of ecosystems?
snow_lady [41]
It would be autotroph and hetrotroph
6 0
2 years ago
An antiproton is identical to a proton except it has the opposite charge, −e. To study antiprotons, they must be confined in an
Alex_Xolod [135]

Answer:

d = 1.13*10^{-4}m = 0.113mm

Explanation:

To find the minimum diameter, that allow to antiproton circulate in the chamber without touching the walls, you use the following formula for the radius of the trajectory of a charged particle in a constant magnetic field.

r=\frac{mv}{qB}   (1)

r: radius of the trajectory

m: mass of the antiproton = 9.1*10-31 kg

v: velocity of the antiproton = 4.0*10^4 m/s

B: magnitude of the magnetic field = 4.0mT = 4.0*10^-3 T

q: charge of the antiproton = +1.6*10^{-19}C

You replace the values of the parameters in (1):

r=\frac{(9.1*10^{-31}kg)(4.0*10^4m/s)}{(1.6*10^{-19}C)(4.0*10^{-3}T)}\\\\r=5.68*10^{-5}m

Then, the diameter of the chamber must be, at least:

d=2r = 2(5.68*10^-5) = 1.13*10^{-4}m = 0.113mm

6 0
3 years ago
People benefit by participating in the market because
solniwko [45]

Answer:

Market participation allows individuals to specialize and, with trade, ultimately consume more.

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