1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
weeeeeb [17]
3 years ago
14

The photo shows a pencil in water. As light passes from water into glass, it changes direction causing you to see a distorted vi

ew of the pencil. What statement about light traveling through water and glass is also true? A. Water and glass absorb different amounts of light. B. Light changes color as it passes from water to glass. C. Light travels at different speeds in water and in glass. D. Light must be perpendicular to the surface to pass from water to glass.
Physics
1 answer:
masha68 [24]3 years ago
7 0
The answer is C. <span>Light travels at different speeds in water and in glass.</span>
You might be interested in
The height of a projectile t seconds after it is launched straight up in the air is given by f (t )equals negative 16 t squared
velikii [3]

Answer:

\displaystyle a(5)=-32

Explanation:

<u>Instant Acceleration</u>

The kinetic magnitudes are usually related as scalar or vector equations. By doing so, we are assuming the acceleration is constant over time. But when the acceleration is variable, the relations are in the form of calculus equations, specifically using derivatives and/or integrals.

Let f(t) be the distance traveled by an object as a function of the time t. The instant speed v(t) is defined as:

\displaystyle v(t)=\frac{df}{dt}

And the acceleration is

\displaystyle a(t)=\frac{dv}{dt}

Or equivalently

\displaystyle a(t)=\frac{d^2f}{d^2t}

The given height of a projectile is

f(t)=-16t^2 +238t+3

Let's compute the speed

\displaystyle v(t)=-32t+238

And the acceleration

\displaystyle a(t)=-32

It's a constant value regardless of the time t, thus

\boxed{\displaystyle a(5)=-32}

3 0
3 years ago
if a torque of 55.0 N/m is required and the largest force that can be exerted by you is 135 N what is th e length of the lever a
Whitepunk [10]

Answer:

r=0.41m

Explanation:

Torque is defined as the cross product between the position vector ( the lever arm vector connecting the origin to the point of force application) and the force vector.

\tau=r\times F

Due to the definition of cross product, the magnitude of the torque is given by:

\tau=rFsin\theta

Where \theta is the angle between the force and lever arm vectors. So, the length of the lever arm (r) is minimun when sin\theta is equal to one, solving for r:

r=\frac{\tau}{F}\\r=\frac{55\frac{N}{m}}{135N}\\r=0.41m

7 0
2 years ago
Two people pull on a horizontal spring that is attached to an immovable wall. Then, they detach it from the wall and pull on opp
zimovet [89]

Answer:In first case

Explanation:

When two People pull the spring, let the applied force by each person be F_o

and spring constant of spring be k

so Total force is 2F_o

total extension according to Hooke's law is

x=\frac{2F_o}{k}

When they detach the spring and apply force in opposite direction then force on either side is F so net extension is

x'=\frac{F_o}{k}

so in first case there will be more extension

3 0
3 years ago
How are Earth, the Moon and Sun alligned during a neap tide?
Tpy6a [65]
Neap tides occur at or immediately after the First Quarter
and Third Quarter moon phases.  At those times, the moon
is 'to the side' of the Earth.  I mean, the sun, Earth, and Moon
make a right angle, with Earth at the vertex.
6 0
3 years ago
The electrons between atoms in metallic bonds
Scilla [17]

Answer:

In metallic bonds, the valence electrons from the s and p orbitals of the interacting metal atoms delocalize.

7 0
2 years ago
Read 2 more answers
Other questions:
  • When Karl Kaveman adds chilled grog to his new granite mug, he removes 10.9 kJ of energy from the mug. If it has a mass of 625 g
    7·2 answers
  • Scientists can use spectral analysis of stars to determine which of the following?
    6·2 answers
  • Compared to a plane gravitational pull on the ground to 7 miles in sky is what
    15·1 answer
  • It is 6.00 km from your home to the physics lab. as part of your physical fitness program, you could run that distance at 10.0 k
    11·1 answer
  • According to the image at the top of the article, what do you think the problem is with plasma televisions?
    11·1 answer
  • a 10.0kg object moving at 5.00 m/s experiences a force of 20.0N. How far must it be pushed by this force for its speed to reach
    15·1 answer
  • Which practice is an unsustainable way of managing resources?<br> Please help
    12·1 answer
  • Which option is an example of a physical property?
    13·1 answer
  • In a given chemical reaction the energy of the products is less than the energy of the reactants which statement is true for thi
    12·1 answer
  • In the simulation, there are three balls on the floor. Drag each of them up off the floor, and then let go. See what happens to
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!