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
Ilia_Sergeevich [38]
2 years ago
6

Evaluate tan(249). O A. 1.36 B. 0.45 C. 0.41 D. 0.91

Physics
1 answer:
vodomira [7]2 years ago
3 0

Answer:

tan 249 = 2.61

tan 249 = tan (249 - 180) = tan 69 = 2.61

You might be interested in
The speed of light in a transparent medium is 0.6 times that of its speed in vacuum. Find the refractive index of the medium.
grin007 [14]
<h2>Answer:</h2>

The refractive index is 1.66

<h2>Explanation:</h2>

The speed of light in a transparent medium is 0.6 times that of its speed in vacuum .

Refractive index of medium = speed of light in vacuum / speed of light in medium  

So

RI = 1/0.6 = 5/3 or 1.66

3 0
2 years ago
Read 2 more answers
On a straight, level, two-lane road, two cars moving in opposite directions approach and pass each other. Car A is in the eastbo
ludmilkaskok [199]

Answer:

a) 42 m/s, positive direction (to the east), b) 42 m/s, negative direction (to the west).

Explanation:

a) Let consider that Car A is moving at positive direction. Then, the relative velocity of Car A as seen by the driver of Car B is:

\vec v_{A/B} = \vec v_{A} - \vec v_{B}\\\vec v_{A/B} = 11 \frac{m}{s} \cdot i + 31 \frac{m}{s} \cdot i\\\vec v_{A/B} = 42 \frac{m}{s} \cdot i

42 m/s, positive direction (to the east).

b) The relative velocity of Car B as seen by the drive of Car A is:

\vec v_{B/A} = \vec v_{B} - \vec v_{A}\\\vec v_{B/A} = -31 \frac{m}{s} \cdot i - 11 \frac{m}{s} \cdot i\\\vec v_{B/A} = - 42 \frac{m}{s} \cdot i

42 m/s, negative direction (to the west).

5 0
3 years ago
A wheel in the shape of a flat, heavy, uniform, solid disk is initially at rest at the top of an inclined plane of height 2.00 m
olasank [31]

Answer:

Explanation:

If friction is neglected, the wheel cannot roll and can only slide frictionlessly and will have the same velocity at the bottom of the ramp as if it had been in free fall as it has converted the same amount of potential energy.

mgh = ½mv²

v = √(2gh) = √(2(9.81)(2.00)) = 6.26418... = 6.26 m/s

However if we do not ignore all friction and the wheel rolls without slipping down the slope, the potential energy becomes linear and rotational kinetic energy

mgh = ½mv² + ½Iω²

mgh = ½mv² + ½(½mR²)(v/R)²

2gh = v² + ½v²

2gh = 3v²/2

v = √(4gh/3) =√(4(9.81)(2.00)/3) = 5.11468... = 5.11 m/s

7 0
2 years ago
How is velocity determined from a distance over time graph
Elden [556K]

Answer:

The slope of a distance vs time graph represents velocity.

Explanation:

7 0
2 years ago
How does energy from the sun affect the motion of molecules in a gas compared to molecules in a liquid?
AnnZ [28]
Molecules in a gas move faster than in a liquid.

hope it helps.
3 0
2 years ago
Read 2 more answers
Other questions:
  • Science is made up of two things, what is it
    5·1 answer
  • The picture below shows a person exploring an underwater cave in Florida.
    7·1 answer
  • when the total amount of a quantity is the same before and after some event occurs, we say that the quantity is (blank)
    13·1 answer
  • One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a s
    9·1 answer
  • What is nuclear fission? (Points : 1)
    11·2 answers
  • Determine the orbits period of the moon when the distance between the earth and the moon is 3.82 x 10 to the power of 8
    5·2 answers
  • Find the dimensional formulas=ut+1/2at^2​
    8·1 answer
  • A material that does not conduct heat very well
    9·2 answers
  • Two cylinders contain the same ideal gas and have the same volume. If the gas molecules in cylinder B have twice the average kin
    5·1 answer
  • The box shown on the rough ramp above is sliding up the ramp.calculate the force of friction on the box
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!