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
sergey [27]
3 years ago
5

A dog walking to the right with a speed of 1.5 m/s sees a cat and speeds up with a constant rightward acceleration of magnitude

12 m/s^2. What is the velocity of the dog after speeding up for 3.0m
Physics
1 answer:
joja [24]3 years ago
8 0

Answer: 8.62

Explanation: It’s correct answer:)

You might be interested in
Which of the following is a chemical change?
svet-max [94.6K]

The answer is D. Water breaking down into hydrogen and oxygen

HTH ^^

5 0
3 years ago
Read 2 more answers
1) Air modeled as an ideal gas enters a well-insulated diffuser operating at steady state at 270 K with a velocity of 180 m/s an
GarryVolchara [31]

Answer:

Explanation:

Kinetic energy of a gas molecule = 3/2 k T

1/2 m v² = 3/2 k T

v² ∝ T

(v₁ / v₂)² = T₁ / T₂

( 180 / 48.4 )² = 270 / T₂

13.83  = 270 / T₂

T₂ = 19.52 K .

Exit temp = 19.52 K .

5 0
3 years ago
In 2000, a 20-year-old astronaut left Earth to explore the galaxy; her spaceship travels at 2.5 x 10^8 m/s. She returns in 2040.
lina2011 [118]

Answer:

42.11 years old

Explanation:

Given that:

In 2000, a 20-year-old astronaut left Earth to explore the galaxy; her spaceship travels at 2.5 x 10^8 m/s. She returns in 2040

To find her age we use:

\Delta t_m=\frac{\Delta t_s}{\sqrt{1-\frac{v^2}{c^2} } }\\

Δtm is  time interval for the observer stationary relative to the sequence of

events = 2040 - 2000 = 40 years

Δts is is the time interval for an observer moving with a speed v relative to the  sequence of event

v = velocity = 2.5 x 10^8 m/s

c = speed of light = 3 x 10^8 m/s

\Delta t_s=\Delta t_m}{\sqrt{1-\frac{v^2}{c^2} } }\\\Delta t_s=40\sqrt{1-\frac{(2.5*10^8)^2}{(3*10^8)^2}}\\\Delta t_s=22.11\ yr

Here age in 2000 is 20 year, therefore when she appear she would be 20 year + 22.11 year = 42.11 years old

7 0
3 years ago
Technician A says that a proper U-joint inspection can be done with the driveshaft in place on the vehicle. Technician B says th
Julli [10]

Answer:

TECHNICIAN B

Explanation: Drive shaft is an elongated part of the drive system made of steel of a vehicle that transmits the <em>ENGINE TORQUE to the WHEELS</em> of a vehicle. For proper inspection a technician is expected to completely remove the driveshaft to check all its compactment. It is  Cylindrical and usually used for <em>REAR-WHEEL-VEHICLES</em>. Drive shafts are known by different names like propeller shaft,Cardan shaft etc it has different types which range from

<em>One-piece drive shaft ,Two-piece drive shaft  to Slip-in-tube drive shaft .</em>

6 0
3 years ago
If you rub an inflated balloon against your hair and place it against a door, by what mechanism does it stick? explain.
Snowcat [4.5K]
When you rub inflated balloon with your hair or your kitten's fur, charge is induced on all over the balloon's surface. This is called "charging by friction" because you developed charges by rubbing to bodies with each other. It will also stick on your wall you can check it out. This is because of "unlike charges attract each other". Rubbed balloon and wall possessed unlike charges which made them stick together. 
8 0
3 years ago
Other questions:
  • Which type of lightbulb uses phosphers
    9·1 answer
  • An indestructible bullet 2.00cm long is fired straight through a board that is 10.0cm thick. The bullet strikes the board with a
    7·1 answer
  • An object of mass 20 kg is raised vertically through a distance of 8.0 m above ground level. Using g=10 m/s^2 what is the potent
    10·1 answer
  • In a Young's double-slit experiment, a set of parallel slits with a separation of 0.102 mm is illuminated by light having a wave
    14·1 answer
  • You add several drops of red food coloring to the water in a beaker without stirring. After a short time, the water has a red co
    14·1 answer
  • The earth has a magnetic field much like a bar magnet. Explain this statement. what does a bar magnet look like? what does its f
    12·2 answers
  • Which of the following astronomical bodies or collection of astronomical bodies is likely to be a part of the others listed?
    6·2 answers
  • HELP PLEASE: Which option is an example of an object that has potential energy followed by an object that has kinetic energy?
    10·1 answer
  • Look at the pic please
    8·1 answer
  • You are driving your car around a roundabout when you get a flat tire and you decelerate at a constant rate to a stop. The diame
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!