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aev [14]
3 years ago
9

PLS Help

Physics
1 answer:
ale4655 [162]3 years ago
6 0

Answer:

sport is an activity that involves movement and teamwork.

hobby is a personal interest that you enjoy doing often.

Explanation:

:)

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During destructive interference, two waves moving through the same medium will
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They will amplify eachother.
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3 years ago
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A birdcage with mass 22.5kg at rest on a living room floor is acted on by a net horizontal force of
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m = mass of the birdcage = 22.5 kg

F = net force acting on birdcage to move it = 140 N

a = acceleration produced due to the force applied

a)

Using newton's second law

a = F/m

inserting the values

a = 140/22.5

a = 6.22 m/s²


b)

t = time of travel of crate = 10.5 s

v₀ = initial velocity of the crate = 0 m/s

X = displacement of the crate

displacement of the crate is given as

X = v₀ t + (0.5) a t²

X = 0 (10.5) + (0.5) (6.22) (10.5)²

X = 342.88 m

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3 years ago
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a bungee jumper momentarily comes to rest at the bottom of the dive before he springs back upward. at that moment, is the bungee
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Answer:

Explanation:

No, the bungee jumper is not at equilibrium.

This can be explained when we consider a bungee jumper as a mass that is undergoing simple harmonic motion. At extreme points i.e. at the bottom, the velocity of the jumper is zero but not the acceleration because it is acting in the opposite direction that is why the jumper moves upward.

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4 years ago
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The inner and outer surfaces of a cell membrane carry a negative and positive charge respectively. Because of these charges, a p
padilas [110]

Answer:

The magnitude of the electric field inside the membrane is 8.8×10⁶V/m

Explanation:

The electric field due to electric potential at a distance Δs is given by

E=ΔV/Δs

We have to find the magnitude electric field in the membrane

Ecell= -ΔV/Δs

E_{cell}=-\frac{V_{in}-V_{out}}{s} \\E_{cell}=\frac{V_{out}-V_{in}}{s}\\E_{cell}=\frac{0.070V}{8*10^{-9}m } \\E_{cell}=8.8*10^{6}V/m

The magnitude of the electric field inside the membrane is 8.8×10⁶V/m

6 0
3 years ago
Which object has the most thermal energy?
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Answer:

B

Explanation:

The object with the most thermal energy is the choice B. This is because from the given choices, it has the most mass and highest temperature of all the bricks.

Thermal energy is the sum total of the average kinetic energy within the system.

It is mathematically expressed as:

    Quantity of energy  = mass   x  specific heat x  change in temperature

We see that the quantity of the thermal energy is directly proportional to mass and temperature changes.

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