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
Pavel [41]
2 years ago
13

Which is an example of a wave?

Physics
2 answers:
larisa [96]2 years ago
7 0
A Is the correct answer
Travka [436]2 years ago
4 0

Answer:

The answer is A

Explanation:

Someone shouting to you from across a room

You might be interested in
What is the correct definition of pH?
ra1l [238]

Answer:

c

Explanation:

5 0
3 years ago
Read 2 more answers
A truck loaded with sand accelerates along a highway. The driving force on the truck remains constant. What happens to the accel
pickupchik [31]

Answer:

Acceleration will increase.

Explanation:

The relation between force, mass and acceleration according to the Newton's second law of motion is given as:

F = ma

We are given that the driving force on the truck remains constant, so F is constant here. We can rewrite the above equation as:

a=\frac{F}{m}

Since, F is constant, the acceleration of the truck is inversely proportional to the mass.

There is a hole at the bottom of the truck through which the sand is being lost at a constant rate. Since, the sand is being lost, the overall mass of the truck is being reduced.

Since, the acceleration of the truck is inversely proportional to the mass, the reduced mass will result in an increased acceleration.

So, the acceleration of the truck will increase.

4 0
3 years ago
What was your train of thought as you navigated the picture of the candle?
defon

Answer:

Where is the picture

Explanation:

WHERE IS THE PICTURE

4 0
3 years ago
Assume that the driver begins to brake the car when the distance to the wall is d=107m, and take the car's mass as m-1400kg, its
Evgen [1.6K]

Answer:

Explanation:

a ) Let let the frictional force needed be F

Work done by frictional force = kinetic energy of car

F x 107 = 1/2 x 1400 x 35²

F = 8014 N

b )

maximum possible static friction

= μ mg

where μ is coefficient of static friction

= .5 x 1400 x 9.8

= 6860 N

c )

work done by friction for μ = .4

= .4 x 1400 x 9.8 x 107

= 587216 J

Initial Kinetic energy

= .5 x 1400 x 35 x 35

= 857500 J

Kinetic energy at the at of collision

= 857500 - 587216

= 270284 J

So , if v be the velocity at the time of collision

1/2 mv² = 270284

v = 19.65 m /s

d ) centripetal force required

= mv₀² / d which will be provided by frictional force

= (1400 x 35 x 35) / 107

= 16028 N

Maximum frictional force possible

= μmg

= .5 x 1400 x 9.8

= 6860 N

So this is not possible.

4 0
3 years ago
What action will slow down the rate of a reaction?
andreyandreev [35.5K]
B. Decreasing surface area of a solid reactant. The more surface area showing, the quicker the reaction rate.
5 0
3 years ago
Other questions:
  • A cruise ship sails due south at 2.00 m/s while a coast guard patrol boat heads 19.0° north of east at 5.60 m/s. What are the x-
    15·1 answer
  • Difference between precion and accuarcy
    7·1 answer
  • What are the condition required for reverberation?​
    5·1 answer
  • Complete the following statement: When a glass rod is rubbed with silk cloth, the rod becomes positively charged asa) negative c
    13·1 answer
  • Light refracts when it passes through some objects. What is refraction?
    13·1 answer
  • Describe the relationship between frequency and wavelength
    12·1 answer
  • In the long jump, an athlete launches herself at an angle above the ground and lands at the same height, trying to travel the gr
    13·1 answer
  • PLEASE HELP! URGENT<br><br> Explain how the forces need to change so an aeroplane can land
    13·1 answer
  • How many degrees equal π in radians? How many revolutions (turns) equal π radians? ​
    10·1 answer
  • . Một con lắc đơn có chiều dài dây treo 1m dao động điều hoà treo trong một xe chạy trên mặt phẳng nghiêng
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!