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3 years ago

3. A class took a field trip to a music studio. The students watched through thick glass as the musicians played

Physics

1 answer:

liq [111]3 years ago

5 0

Answer:

Sound can't travel in a vaccum.

Explanation:

Sound waves need a medium in order to travel (e.g. air, water, glass)

Since there was a vaccum between the glass the sound couldn't travel since vaccum's contain a very small amount of atoms.

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When a hypothesis is wrong, scientists often begin by revising the (blank)

Vsevolod [243]

I might be wrong, but. The words seem to fit.

When a hypothesis is wrong, scientists often begin by revising the question after that, its common for scientists to redesign the experiment.

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3 years ago

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When we greatly dim the light used in a double-slit experiment, we don’t simply get a dimmer interference pattern. What do we ge

maw [93]

Answer:

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3 years ago

Two charges are placed 0.100 m apart from each other and experience a force of 100 N. Which statement about the electric force i

Elodia [21]

Answer:https://www.khanacademy.org/science/high-school-physics/electric-charge-and-electric-force/coulombs-law-and-electric-force/v/coulombs-law

Explanation: Here is a link to a video that might help you

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3 years ago

What does it mean to say that the average speed of a car is 35 miles per hour?

LenKa [72]

It means that the car has covered

(35 miles) x (the number of hours since it started traveling).

At some points during that time, the car was most likely moving
faster or slower than 35 miles per hour. We don't know. We only
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3 years ago

An arrow is launched upward with an initial speed of 100 meters per second (m/s). The equations above describe the constant-acce

BigorU [14]

Answer:

510 m

Explanation:

The arrow is fired upward, so the motion of the arrow is a free fall motion, therefore we can find the maximum height by using the suvat equation

$v^2-u^2=2as$

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the displacement

Here we have:

v = 0 (at the point of maximum height, the velocity of the arrow is zero)

u = 100 m/s (initial velocity)

$a=g=-9.8 m/s^2$ (acceleration of gravity, downward)

s = ? is the maximum height

Solving for s, we find the maximum height of the arrow:

$s=\frac{v^2-u^2}{2a}=\frac{0-100^2}{2(9.8)}=510 m$

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4 years ago