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
hram777 [196]
2 years ago
10

Will give Brianliest answer. help.

Physics
1 answer:
dimaraw [331]2 years ago
3 0

Answer:6.2

Explanation:

You might be interested in
José and Laurel measured the length of a stick's shadow during the day. Without knowing the length of the stick, which of their
skelet666 [1.2K]

Answer:

Option B.

Explanation:

Assuming the stick is in vertical position, its shadow depends on two factors: its length and the angle between the sun rays and the stick. When the angle is bigger, the lenght of the shadow increases, and vice versa. So, when the sun rays are parallel to the stick, the shadow may be small. Since they are nearly perpendicular to the Earth's surface at 12 o'clock, the shadow of the stick at that time should be minimal. It means that the measured shadow of 75 cm at 12:30 p.m. is almost impossible (Option B).

5 0
3 years ago
How can spectroscopy and infrared technology be useful in space?
olchik [2.2K]

Answer:

B

Explanation:

Spectroscopy measures electromagnetic radiation.

3 0
3 years ago
Your digestive system has three main functions digestion, absorption and elimination. in which organ does absorption begin?
xeze [42]
The Answer Is The Small Intestine

3 0
3 years ago
Read 2 more answers
A rock is suspended by a light string. When the rock is in air, the tension in the string is 51.9 N . When the rock is totally i
Luden [163]

Answer:

\rho _{liquid}=1995.07kg/m^{3}

Explanation:

When the rock is immersed in unknown liquid the forces that act on it are shown as under

1) Tension T by the string

2) Weight W of the rock

3) Force of buoyancy due to displaced liquid B

For equilibrium we have T_{3}+B = W_{rock}

T_{3}+\rho _{Liquid}V_{rock}g=W_{rock}.....(\alpha)

When the rock is suspended in air for equilibrium we have

T_{1}=W_{rock}....(\beta)

When the rock is suspended in water for equilibrium we have

T_{2} + \rho _{water}V_{rock}g=W_{rock}.....(\gamma)

Using the given values of tension and solving α,β,γ simultaneously for \rho _{Liquid} we get

W_{rock}=51.9N\\31.6+1000\times V_{rock}\times g=51.9N\\\\11.4+\rho _{liquid}V_{rock}g=51.9N\\\\

Solving for density of liquid we get

\rho _{liquid}=\frac{51.9-11.4}{51.9-31.6}\times 1000

\rho _{liquid}=1995.07kg/m^{3}

5 0
2 years ago
Why do elements need to be heated to emit color?
kirill115 [55]
Light carries away the energy. At a room temperature they are at their lowest energy
7 0
3 years ago
Other questions:
  • 1 point
    15·1 answer
  • Suppose you're on a hot air balloon ride, carrying a buzzer that emits a sound of frequency f. If you accidentally drop the buzz
    15·1 answer
  • Liam throws a water balloon horizontally at 8.2 m/s out of a window 18 m from the ground.
    5·1 answer
  • What electromagnetic wave has the most energy?
    9·2 answers
  • You kick a soccer ball of mass 0.41 kg. the ball leaves your foot with an initial speed of 23 m/s. (a what is the magnitude of t
    9·2 answers
  • During which segments is kinetic energy decreasing?
    5·2 answers
  • what output force is generated when an input force of 630 n is applied to a machine with a mechanical advantage of 3
    8·2 answers
  • A current of 0.2A flows through a component with a resistance of 40ohms calculate the potential difference
    5·1 answer
  • By which factor is the sound intensity decreased at 3 meters?
    13·1 answer
  • People cannot see certain types of light waves because:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!