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
Tatiana [17]
3 years ago
11

Can y’all please help

Physics
1 answer:
TiliK225 [7]3 years ago
5 0

Answer:

<em>The cat's speed when it slid off the table was 2.53 m/s</em>

Explanation:

<u>Horizontal Motion</u>

When an object is thrown horizontally at a speed v, from a height h, it describes a curved path ruled by gravity, until it hits the ground.

the range or maximum horizontal distance traveled by the object can be calculated as follows:

\displaystyle d=v\cdot\sqrt{\frac  {2h}{g}}

The situation described in the problem fits into the concept of a horizontal launch when the cat slides off the table and gets to the ground some distance ahead.

It's given the range as d=1.3m and the height h=1.3 m, thus we can find the cat's speed by solving the equation for v:

\displaystyle v=d\cdot\sqrt{\frac  {g}{2h}}

Where g=9.81\ m/s^2

Substituting values:

\displaystyle v=1.3\cdot\sqrt{\frac  {9.81}{2\cdot 1.3}}

\displaystyle v=1.3\cdot\sqrt{\frac  {9.81}{2.6}}

Calculating:

v = 2.53 m/s

The cat's speed when it slid off the table was 2.53 m/s

You might be interested in
Which of the following is likely to contribute to geological events that take place on Earth?
Dennis_Churaev [7]
Crust sitting on top of Milton rock of the mantle
5 0
4 years ago
Read 2 more answers
What are Earth's mineral resources and how long might<br> reserves last?
amm1812
Reserves might last 53.3 years.

Earth’s mineral resources:

3 0
3 years ago
NASA is giving serious consideration to the concept of solar sailing. A solar sailcraft uses a large, low- mass sail and the ene
RUDIKE [14]

Answer:

<em>d. The sail should be reflective because in this case the momentum transferred to the sail per unit area per unit time is larger than for absorbing sail, therefore the radiation pressure is larger for the reflective sail.</em>

<em></em>

Explanation:

Let us take the momentum of a photon unit as u

we know that the rate of change of momentum is proportional to the force exerted.

For a absorbing surface, the photon is absorbed, therefore the final momentum is zero. From this we can say that

F = (u - 0)/t = u/t

for a unit time, the force is proportional to the momentum of the wave due to its energy density. Therefore,

F = u

For a reflecting surface, the momentum of the wave strikes the sail and changes direction. Since we know that the speed of light does not change, then the force is proportional to

F = (u - (-u))/t = 2u/t

just as the we did above, it becomes

F = 2u.

From this we can see that the force for a reflective sail is twice of that for an absorbing sail, and we know that the pressure is proportional to the force for a given area. From these, we conclude that <em>the sail should be reflective because in this case the momentum transferred to the sail per unit area per unit time is larger than for absorbing sail, therefore the radiation pressure is larger for the reflective sail.</em>

<em></em>

3 0
3 years ago
Compared to the inertia of a 1-kilogram mass, the inertia of a 4-kilogram mass is​
Mumz [18]

Explanation:

The inertia of a 4 kg mass is four times as great as a 1 kg mass.

5 0
3 years ago
Which phrase best describes wave motion
White raven [17]

Answer:

I would describe wave motion as “propagating oscillations” as a general phrase.

For something like water waves, I would say “water waves are oscillations of the surface of a body of water that propagate in a given direction.”

For electromagnetic waves I would say “An electromagnetic wave is an oscillating disturbance of the electric and magnetic fields that propagates through space.”

Explanation:

PLZ MARK BRAINLIEST

4 0
3 years ago
Read 2 more answers
Other questions:
  • Lowest frequency of wave
    5·2 answers
  • Which of these accurately describes the products of a reaction?
    14·2 answers
  • What is the acceleration of a skier that goes from 2.50 m/s to 14.5 m/s while traveling 505 m down a slope?
    10·1 answer
  • Write an essay: qualities of the best student​
    14·1 answer
  • What is the science?​
    15·2 answers
  • If you have an immovable object on a table, and you remove the table from under the object, like in the tablecloth trick what wi
    10·1 answer
  • An Object with a mass of 40kg is moving at a velocity of 10 m/s. Determine its kinetic energy
    8·1 answer
  • (e)
    9·1 answer
  • Describe transmission
    11·1 answer
  • You and a partner sit on the floor and stretch out a coiled spring to a length of 7.2 meters. You shake the coil so you
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!