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
yarga [219]
4 years ago
7

I need help in physics please help me

Physics
1 answer:
artcher [175]4 years ago
3 0

The first step is to represent the vectors shown in the image in Cartesian coordinates.

For the vector C we have a magnitude of 4.8 and an angle 22 ° with the axis -y (direction j)

To write this vector in Cartesian coordinates we must find its component in x (address i) and in the y axis.

x = 4.8sin(22)i\\\\y = 4.8cos(22)(-j)

So:

C = 4.8sin(22) i + 4.8cos(22)(-j)\\\\C = 1.798\ i - 4.450\ j

For Vector B we have a magnitude of 5.6 and an angle of 33 with the -x axis (-i direction)

So:

x = 5.6cos(33)(-i)\\\\y = 5.6 sin(33)(-j)

So:

B = 5.6cos(33)(-i) + 5.6sin(33)(-j)\\\\B = -4.696\ i - 3.05\ j

Finally the sum of B + C is made component by component in the following way:

F = (-4.696 +1.798)i + (-4.450 - 3.05)j\\\\F = -2.898\ i - 7.5\ j

Finally the magnitude of f is:

|F| = \sqrt{(-2,898)^2 + (-7.5)^2}

| F | = 8.04

You might be interested in
When the time of day for a certain ship at sea is 12 noon, the time of day at the prime meridian (0 longitude0 is 5 pm. what is
azamat

A).  The sun is highest in London, but will not pass the ship
for another 5 hours.

Since the sun moves from east to west, the ship must be
5 hours west of Greenwich.

Each hour of sun motion is 15° of longitude. 
The ship's longitude is (5 x 15°) = 75° West. 

The ship may be sailing down Columbia Boulevard
in Maple Shade, New Jersey.


B).  The latitude at Buffalo's City Hall is 42.887° North.

Polaris is always within about 2/3 of a degree of that angle
above the northern horizon, when viewed from City Hall.

Choice  2)  is the most appropriate.

4 0
4 years ago
How does the resulting cell at the end of asexual reproduction compare to the original cell
lina2011 [118]

1. At the end of asexual reproduction the resulting cell is an exact genetic copy of the original cell.

2. During inter phase the cell copies its DNA, and grows to an appropriate size where it is safe for the cell to split.

3. After meiosis, the resulting daughter cells are 4 genetically different haploid daughter cells.

4. During sexual reproduction, two haploid gametes join in the process of fertilization to produce a diploid zygote. The two haploid gamete bring different traits together, they also shares some DNA. This makes each daughter cell unique.

4 0
3 years ago
Phenolphthalein turns pink in salt water
OLEGan [10]
That statement is true
7 0
3 years ago
A hydraulic lift consists of two pistons that connect to each other by an incompressible fluid. If one piston has an area of 0.1
hjlf
You have:
 
 A1= 0.15 m²
 A2=6.0 m²
 F1=130.0 N
 
 To solve this problem you must use the pressure formula, as below:
 
 P1=P2
 F1/A1=F2/A2
 
 Then, you have:
 
 m2=A2xF1/A1xg
 
 g=9.81 m/s² (This is the acceleration of gravity)
 
 When you substitute the values in m2=A2xF1/A1xg, you obtain:
 
 m2=(0.60 m² x 130.0 N)/(0.15 m² x 9.81 m/s²)
 
 The answer is:
 
 m2=530 Kg
5 0
4 years ago
What is the formula for speed
maw [93]

The formula for speed is distance traveled divided by time

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many protons, neutrons and electrons in a neutral atom with the symbol 41Ca
    6·1 answer
  • In selecting either a box or open-end wrench, care should be taken to see that the ? properly fits the nut.
    7·1 answer
  • It is easy..plz help!
    13·1 answer
  • If you see a lightning stroke and then, 15 seconds later, hear the thunder, the lightning is about ____ miles away
    13·1 answer
  • A visitor to the observation deck of a skyscraper manages to drop a penny over the edge. As the penny falls faster, the force du
    11·2 answers
  • A car is making a 50 mi trip. It travels the first half of the total distance 25.0 mi at 7.00 mph and the last half of the total
    6·1 answer
  • 8) T F A car is being towed at constant velocity on a horizontal road using a horizontal chain. The tension in the chain must be
    12·1 answer
  • Determine criteria that NASA may have considered when beginning to design a solution to a problem.
    15·1 answer
  • The most external skin region is?
    6·2 answers
  • State any ten reasons why students in Uganda need to study physics?use examples of the possible technological advancements which
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!