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
jarptica [38.1K]
3 years ago
7

Longitudinal waves travel through a series of ___ and ___ PlEASE HELP FAST!!!!!!

Physics
1 answer:
Inga [223]3 years ago
5 0

Compressions and refractions

opt.1

You might be interested in
If Mrs. Ramsey divides 5 pounds of flour equally into three bowls, what is the weight of flour in one bowl?
melamori03 [73]

Total flour was 5 pounds

Ramsey divided it in 3 bowls equally

it means now

3 bowls has = 5 pounds of flour

to get in 1 bowl we we can divide by 3 both sides

3/3 bowl has = 5/3 pounds of flour

1 bowl has = 5/3 pounds

7 0
3 years ago
Read 2 more answers
What is a point of view of an object used to determine another object's motion
Finger [1]
<h2><em>A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. You assume that the reference point is stationary, or not moving.</em></h2>
7 0
3 years ago
______ can occur when water-saturated soil turns from a solid to a liquid as a result of an earthquake.
jek_recluse [69]
The answer is liquefaction
6 0
2 years ago
You do 120 j of work while pulling your sister back on a swing, whose chain is 5.10 m long. you start with the swing hanging ver
Goryan [66]
The work done to pull the sister back on the swing is equal to the increase in potential energy of the sister:
W= \Delta U = mg \Delta h (1)

where m is the sister's mass, g is the gravitational acceleration and \Delta h is the increase in altitude of the sister with respect to its initial position.

By calling \theta the angle of the chain with respect to the vertical, the increase in altitude is given by
\Delta h = L - L \cos \theta = L(1 - \cos \theta) (2)
where L is the length of the chain.

Putting (2) inside (1), we find
W= m g L (1 - \cos \theta)
from which we can find the mass of the sister:
m =  \frac{W}{g L (1 - \cos \theta)} =  \frac{120 J}{(9.81 m/s^2)(5.10 m)(1- \cos 32.0^{\circ})} =15.8 kg
5 0
2 years ago
Two power lines run parallel for a distance of 222 m and are separated by a distance of 40.0 cm. if the current in each of the t
earnstyle [38]
1) Magnitude of the force:

The magnetic field generated by a current-carrying wire is
B= \frac{\mu_0I}{2 \pi r}
where
\mu_0 is the vacuum permeability
I is the current in the wire
r is the distance at which the field is calculated

Using I=135 A, the current flowing in each wire, we can calculate the magnetic field generated by each wire at distance 
r=40.0 cm=0.40 m, 
which is the distance at which the other wire is located:
B= \frac{\mu_0 I}{2 \pi r}= \frac{(4 \pi \cdot 10^{-7} N/A^2)(135 A) }{2 \pi (0.40 m)}=6.75 \cdot 10^{-5} T

Then we can calculate the magnitude of the force exerted on each wire by this magnetic field, which is given by:
F=ILB=(135 A)(222 m)(6.75 \cdot 10^{-5}T)=2.03 N

2) direction of the force: 
The two currents run in opposite direction: this means that the force between them is repulsive. This can be determined by using the right hand rule. Let's apply it to one of the two wires, assuming they are in the horizontal plane, and assuming that the current in the wire on the right is directed northwards:
- the magnetic field produced by the wire on the left at the location of the wire on the right is directed upward (the thumb of the right hand is directed as the current, due south, and the other fingers give the direction of the magnetic field, upward)

Now let's apply the right-hand rule to the wire on the right:
- index finger: current --> northward
- middle finger: magnetic field --> upward
- thumb: force --> due east --> so the force is repulsive

A similar procedure can be used on the wire on the left, finding that the force exerted on it is directed westwards, so the force between the two wires is repulsive.
6 0
3 years ago
Other questions:
  • Two objects are maintained at constant temperatures, one hot and one cold. Two identical bars can be attached end to end, as in
    5·1 answer
  • Why is the gravitational potential energy of an object 1 meter above the moons surface less than its potential energy 1meter abo
    9·1 answer
  • When evidence from many new experiments does not support an existing scientific theory like daltons, which of the following is m
    12·1 answer
  • If an atom has seven electrons how many are in the second shell?
    15·2 answers
  • The height of a flagpole is 8.5 meters tall. If the length of the meter stick shadow is 1.5 meters long, what would be the lengt
    12·1 answer
  • Which of these models of the solar system first proved that the sun is at the center of the solar system?
    13·2 answers
  • PLEASE ASAP ILL GIVE BRAINLIEST.
    9·1 answer
  • Henry mixed salt and water together in a cup until he observed a clear solution. He measured the mass of the solution. Then he p
    5·2 answers
  • Calculate the average time it took the car to travel 0. 25 and 0. 50 meters with three washers attached to the pulley. Record th
    15·1 answer
  • What factor contributes most to the kinetic energy of a body in motion
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!