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Mademuasel [1]
2 years ago
10

when an object is immersed in liquid at rest,why is the net force on the object is the horizontal direction equal to zero?​

Physics
1 answer:
Marizza181 [45]2 years ago
6 0

Answer:

The pressure is the same on points that are at the same level but on opposite sides.

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An object is traveling on a circle with a radius of 6 feet. If in 80 seconds a central angle of 9/4 radians is swept out, then f
trapecia [35]

Answer:

The angular speed of the object is 0.0281 rad/s

The linear speed of the object is 0.169 ft/s

Explanation:

Given;

radius of the circle, r = 6 ft

time of motion of the object around the circle, t = 80 s

central angle formed by the object during the motion, θ = 9/4 rad = 2.25 rad

The angular speed of the object is calculated as;

\omega = \frac{\theta }{t} = \frac{2.25 \ rad}{80 \ s} = 0.0281 \ rad/s

The linear speed of the object is calculated as;

v = ωr

v = 0.0281 rad/s   x    6ft

v = 0.169 ft/s

8 0
3 years ago
The​ four-firm concentration ratio for newstands is 17 and for electric lamp makers it is 89. The HHI for newstands is 105 and f
TEA [102]

Answer:

is; is not

Explanation:

The​ four-firm concentration ratio for newstands is 17 and for electric lamp makers it is 89. The HHI for newstands is 105 and for electric lamp makers it is 2 comma 850. The newstand market​ is an example of monopolistic competition. The electric lamp market​ is not an example of monopolistic competition

4 0
3 years ago
A ball with an initial velocity of 12 m/s is rolling up a hill. The ball accelerates at a rate of -2.6 m/s/s.
Anon25 [30]

Answer:

4.61 seconds

Explanation:

Given data

Initial velocity= 12m/s

acceleration= -2.6m/s^2

From the given data

we can find the time t

we know that

Acceleration= velocity/time

time= velocity/acceleration

time= 12/2.6

time= 4.61 seconds

4 0
3 years ago
Which statement accurately describes the ultraviolet catastrophe
castortr0y [4]

Answer: A hot lightbulb gave off white visible light instead of ultraviolet light.

Explanation:

3 0
3 years ago
A trampoline has a spring constant of 3430 N/m how far will the trampoline sink when a 70 kg person steps on it
Dominik [7]
F = ma = -kx

a = 9.81 m/s²
k = 3430 N/m
m = 70 kg

x = - ma/ k = 0.2m
3 0
3 years ago
Read 2 more answers
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