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Artemon [7]
3 years ago
7

If an object is accelerating, the forces acting on it must be ___.

Physics
1 answer:
I am Lyosha [343]3 years ago
6 0

If an object is accelerating, the forces acting on it must be <em>unbalanced</em>.

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A piano string having a mass per unit length of 5.00 g/m is under a tension of 1350 N. Determine the speed of transverse waves i
padilas [110]

Answer:

The speed of transverse waves in this string is 519.61 m/s.

Explanation:

Given that,

Mass per unit length = 5.00 g/m

Tension = 1350 N

We need to calculate the speed of transverse waves in this string

Using formula of speed of the transverse waves

v=\sqrt{\dfrac{T}{\mu}}

Where, \mu = mass per unit length

T = tension

Put the value into the formula

v = \sqrt{\dfrac{1350}{5.00\times10^{-3}}}

v =519.61\ m/s

Hence, The speed of transverse waves in this string is 519.61 m/s.

6 0
3 years ago
A .140kg baseball traveling 35.0m/s strikes the catchers mit bringing the ball to rest, recoils backward 11.0cm what’s the avera
Juli2301 [7.4K]

Average force applied by the call on the glove = 780 N

Explanation:

mass of baseball=0.140 kg

initial velocity = Vi= 35 m/s

Final velocity=Vf= 0

distance traveled=11 cm= 0.11 m

using the kinematic equation Vf²= Vi²+ 2 a d

where a = acceleration

0²= 35²+ 2 a (0.11)

a=-5568.2 m/s²

Now force is given by F= ma

F= 0.140 (5568.2)

F=-780 N

The negative sign signifies that the force acts in the opposite direction.

so the average force= 780 N

6 0
3 years ago
In this type of polarization a Polaroid filter serves as a device that filters out one-half of the vibrations.
erik [133]
The answer is d.
hope it helped
6 0
3 years ago
Energy from the sun drives the _ of the water from the ocean surface. As the air moves up the west side of the mountain, the wat
marin [14]

Answer: The air is full of water, as water vapor, even if you can't see it. Condensation is the process of water vapor turning back into liquid water, with the best example being those big, fluffy clouds floating over your head. And when the water droplets in clouds combine, they become heavy enough to form raindrops to rain down onto your head.

Explanation:

6 0
2 years ago
This question is about the alpha particle experiment
Wewaii [24]
This suggest the the atom has a very small positively charged nucleus in the mass of the atom is concentrated. 
And the electrons revolves around the nucleus in their orbits.
4 0
4 years ago
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