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
pashok25 [27]
3 years ago
10

A car moves with an initial velocity of 19 m/s due north. (Part A) Find the velocity of the car after 5.6 s if its acceleration

is 1.6 m/s^2 due north. (Part B) Find the velocity of the car after 5.6 s if its acceleration is 1.5 m/s2 due south.
Physics
1 answer:
galben [10]3 years ago
5 0

Answer

Assuming

east is the positive x direction

north is the positive y direction

initial velocity , u = 19 j m/s

a) acceleration , a = 1.6 j m/s^2

Using first equation of motion

v = u + a × t

v = 19 + 5.6× 1.6

v = 28 j m/s

the velocity of the car after 5.6 s is 28 m/s north

b)

acceleration , a = -1.5 j m/s^2

Using first equation of motion

v = u + a × t

v = 19 - 5.6 ×1.5

v = 10.6 j m/s

the velocity of the car after 5.6 s is 10.6 m/s north

You might be interested in
In a liquid with a density of 1500 kg/m3, longitudinal waves with a frequency of 410 Hz are found to have a wavelength of 7.80 m
ahrayia [7]

Answer:

The bulk modulus of the liquid is 1.534 x 10¹⁰ N/m²

Explanation:

Given;

density of the liquid, ρ = 1500 kg/m³

frequency of the wave, F = 410 Hz

wavelength of the sound, λ = 7.80 m

The speed of the wave is calculated as;

v = Fλ

v = 410 x 7.8

v = 3,198 m/s

The bulk modulus of the liquid is calculated as;

V = \sqrt{\frac{B}{\rho} } \\\\V^2 = \frac{B}{\rho}\\\\B = V^2 \rho\\\\B = (3,198 \ m/s)^2 \times 1500 \ kg/m^3\\\\B = 1.534 \ \times 10^{10} \ N/m^2

Therefore, the bulk modulus of the liquid is 1.534 x 10¹⁰ N/m²

5 0
3 years ago
Complete the following sentence: The term coherence relates to the phase relationship between two waves. the polarization state
77julia77 [94]

Answer:

<em>the phase relationship between two waves.</em>

<em></em>

Explanation:

Coherence describes all properties of the correlation between physical quantities between waves. It is an ideal property of waves that determines their interference. In a situation in which there is a correlation or phase relationship between two waves. If the properties of one of the waves can be measure directly, then, some of the properties of the other wave can be calculated.

6 0
2 years ago
Hey, guys need your help. I do school online and I have this project due. The problem is, I didn't know I needed most of these s
Alexxandr [17]
You need to post a picture so someone can help
6 0
3 years ago
How fast an object is moving is its
faltersainse [42]

Answer:

D. Speed !!!!!

4 0
3 years ago
Which most likely indicates a chemical change has occurred?
Marta_Voda [28]
A green liquid becoming a red liquid
3 0
2 years ago
Other questions:
  • what issues might arise in determining the latent heat of something that sublimes in comparison to something that melts
    7·2 answers
  • Light-rail systems have been tried all over the country, and they've failed. Although the people who support them have noble int
    11·2 answers
  • A boat sails south with the help of a wind blowing in the direction S36°E with magnitude 300 lb. Find the work done by the wind
    5·1 answer
  • An electron of mass 9.11 1031 kg has an initial speed of 3.00 105 m/s. It travels in a straight line, and its speed increases to
    15·1 answer
  • A 500 N passenger weighs 24500 N elevator that rises 30 m in exactly 1 minute how much power is needed for the elevators trip
    7·1 answer
  • a capacitor of unknown charged capacitance c is charged to 100v and the connected across an intially uncharged 60micro f capacit
    9·1 answer
  • What is the relationship between the frequency and the speed of the wave?
    11·1 answer
  • Which property of potential energy distinguishes it from kinetic energy
    13·1 answer
  • A dart player throws a dart horizontally at a velocity of 12.7 m/s. The
    14·1 answer
  • A force of 77 N is used to move a desk 1.5 m. How much work was done?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!