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
liraira [26]
3 years ago
7

Two points are given in polar coordinates by : (r, θ) = (2.60 m, 50.0°)

Physics
1 answer:
alukav5142 [94]3 years ago
5 0

Answer:

The distance between the 2 points is 4.6558 meters.

Explanation:

The distance between 2 points (r_1,\theta _1),(r_2,\theta _2) is given by

d=\sqrt{r_{1}^{2}+r_{2}^{2}-2r_1\cdot r_2cos(\theta _2-\theta _1)}

In our case the given 2 points are (2.60,50.0^{o}),(3.60,-46.0^{o}) hence the distance is

d=\sqrt{2.60^{2}+3.60^{2}-2\cdot 2.60\cdot 3.60\cdot cos(-46.0-50)}\\\\\therefore d=4.6558m

You might be interested in
4.) An apartment building is on fire and a guy is trapped on the fire escape ladder. There is a
Tems11 [23]

Answer:

5.3 m/s

Explanation:

First, find the time it takes for him to fall 7m.

y = y₀ + v₀ t + ½ at²

0 = 7 + (0) t + ½ (-9.8) t²

0 = 7 − 4.9 t²

t ≈ 1.20 s

Now find the velocity he needs to travel 6.3m in that time.

x = x₀ + v₀ t + ½ at²

6.3 = 0 + v₀ (1.20) + ½ (0) (1.20)²

v₀ ≈ 5.27 m/s

Rounded to two significant figures, the man must run with a speed of 5.3 m/s.

3 0
3 years ago
****PLEASE HELP**** THERE ARE TWO QUESTIONS (ITS EASY)
notka56 [123]

but I think it's a and f

and

b and e

3 0
3 years ago
How could you weaken the force of gravity between cars and the Earth?<br>**I WILL MARK BRAINLEST**​
scoundrel [369]

Answer:

The answer you have selected is correct.

Explanation:

Increase radius, force of gravity decreases

6 0
3 years ago
What is a property of “normal force”? a. It always points perpendicular to the contact surface. b. It always points parallel to
OleMash [197]

Answer:

a. It always points perpendicular to the contact surface.

Explanation:

"Normal" means perpendicular.  Normal forces are always perpendicular to the contact surface.

6 0
3 years ago
How many animals lost each hour
joja [24]

Answer:

562

Explanation:

6 0
3 years ago
Other questions:
  • Now consider a different electromagnetic wave, also described by: Ex(z,t) = Eocos(kz - ω t + φ) In this equation, k = 2π/λ is th
    12·1 answer
  • A(n) 71.1 kg astronaut becomes separated from the shuttle, while on a space walk. She finds herself 70.2 m away from the shuttle
    15·1 answer
  • A girl coasts down a hill on a sled, reaching
    12·1 answer
  • The author writes that each part of the ecosystem is as important as another. Based
    12·1 answer
  • A finite line of charge with linear charge density ????=3.35×10^−6 C/m and length L=0.588 m is located along the x ‑axis (from x
    14·1 answer
  • A thin block of soft wood with a mass of 0.078 kg rests on a horizontal frictionless surface. A bullet with a mass of 4.67 g is
    14·1 answer
  • What does it mean if one person has a higher value for power?
    14·2 answers
  • An electric motor is rated at 900 W. How much force does it apply when moving
    11·1 answer
  • Please answer all questions COMPLETELY!! I NEED IT ASAP!!!​
    5·1 answer
  • A block of density 8.9g/cm³ measures 5cm by 2cm, Given that the force of gravity is 10N/kg. Determine the maximum pressure
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!