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
Temka [501]
3 years ago
10

SOLVED

Mathematics
1 answer:
Nastasia [14]3 years ago
4 0
5)
a. The equation that describes the forces which act in the x-direction: 
<span>     Fx = 200 * cos 30 </span>
<span>
b. The equation which describes the forces which act in the y-direction: </span>
<span>     Fy = 200 * sin 30 </span>

<span>c. The x and y components of the force of tension: </span>
<span>    Tx = Fx = 200 * cos 30  </span>
<span>    Ty = Fy = 200 * sin 30 </span>

d.<span>Since desk does not budge, </span><span>frictional force = Fx
                                                                        = 200 * cos 30 </span>

<span>                                                 Normal force </span><span>= 50 * g - Fy
                                                                       = 50 g - 200 * sin 30 
</span>____________________________________________________________
6)<span> Let F_net = 0</span>
a. The equation that describes the forces which act in the x-direction: 
    (200N)cos(30) - F_s = 0

b. The equation that describes the forces which act in the y-direction:
    F_N - (200N)sin(30) - mg = 0

c. The values of friction and normal forces will be:
     Friction force= (200N)cos(30),
     
The Normal force is not 490N in either case...
Case 1 (pulling up)
F_N = mg - (200N)sin(30) = 50g - 100N = 390N

Case 2 (pushing down)
F_N = mg + (200N)sin(30) = 50g + 100N = 590N
You might be interested in
Translate mathematical word sentence into written expression: a/2=9
Burka [1]

Answer:

a/2 = 9

  • <em>a</em> divided by 2 gives 9.
  • Half of<em> a </em>is equivalent to 9.
6 0
3 years ago
PLEASE PLEASE PLEASE HELP ME Which of the following is a perfect square trinomial?
alexandr1967 [171]

Answer:

D?

Step-by-step explanation:

7 0
2 years ago
Would appreciate the help 24 points
andre [41]

Answer:

13) Rectangle

14) parallelogram

15) co ordinates areD (0,a) andE (c,b)

16) co ordinates are D(0,b) and E(a,0)

17)(-1,1) (4,1) (-1,4)

18)(0,0) (a,0) (a,a) (0,a)

Step-by-step explanation:

<h3>13)</h3><h3>Rectangle</h3>

The opposite sides of a rectangle are parallel and equal

left height = right height

(by using distance formula)

(0,3),(2,-2) = (5,5),(7,0)

√(2-0)²+(-2-3)² = √(7-5)²+(0-5)²

√(2)²+(-5)² = √(2)²+(-5)²

√4+25 = √(2)²+(-5)²

√29 = √29 hence equal

<h3>14)</h3><h3>parallelogram</h3>

The opposite sides of a rectangle are not equal

left height = right height

(by using distance formula)

(0,0),(3,-4) = (3,4),(7,0)

√(3-0)²+(-4-0)² = √(7-3)²+(0-4)²

√(3)²+(-4)² = √(5)²+(-4)²

√9+16 = √(25)+(16)

√(25) ≠√41

5 ≠ √41

<h3>15)</h3><h3>co ordinates are D(0,a) and E(c,b)</h3><h3>16)</h3><h3>co ordinates are D(0,b) and E(a,0) </h3>

since rhombus have equal opposite sides

<h3>17)</h3><h3>(-1,1) (4,1) (-1,4)</h3><h3>18)</h3><h3>(0,0) (a,0) (a,a) (0,a)</h3><h3 />

6 0
3 years ago
A complex shape with measurements 10 feet, 4 feet, 7 feet, 5 feet, 3 feet, 9 feet.
Archy [21]

Answer:

Add each side to get perimeter so your total is 38ft

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
You have $10,000 to deposit in a savings account that earns simple interest at a rate of 4.5% per year. how much interest will b
postnew [5]
0.045×10,000×2 =900..............
7 0
3 years ago
Other questions:
  • What is a rule that represents the function, (0,1), (1,3), (2,9), (3,27), (4, 81)?
    13·2 answers
  • Which of the following is the algebraic expression that best describes the height y, if x is the width
    7·1 answer
  • It takes 2 2 ⁄3 spoons of chocolate syrup to make 2 2 ⁄4 gallons of chocolate milk. How many spoons of syrup would it take to ma
    6·1 answer
  • can the locus of the points idea can be used to define straight lines,cicles,and even more complex shapes such as parables
    6·1 answer
  • What is the value of x in the equation below?<br> -3-(-8)-(-2) = x<br> O-13<br> O9<br> O 3<br> O 7
    8·1 answer
  • August 22 3months later what day would it be
    7·1 answer
  • Given: WY=ZX<br><br> A is the midpoint of WY.<br><br> A is the midpoint of ZX.<br><br> Prove: WA =ZA
    5·1 answer
  • Please help asap for math will give extra points on my next post
    7·1 answer
  • How much simple interest would be earned on a certificate of deposit worth
    15·1 answer
  • Solve for y.<br><br> –4(y − 15) + –6 = –10 What does y equal
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!