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
olya-2409 [2.1K]
2 years ago
12

A herdsman yelling out to a fellow herdsman heard his voice reflected by a cliff 4s later.What is

Physics
1 answer:
Sloan [31]2 years ago
4 0

Answer:

v = 340 m/s

Explanation:

Given that,

A herdsman yelling out to a fellow herdsman heard his voice reflected by a cliff 4s later.

The cliff is 680 m away

We need to find the velocity of sound in air.

Velocity = distance/time

Distance = 2 × 680 = 1360 m

v=\dfrac{1360\ m}{4\ s}\\\\=340\ m/s

So, the velocity of sound in air is 340 m/s.

You might be interested in
light incident on a polarizer is then passed through a second polarizer. if the polarizer and the analyzer are perpendicular to
Lerok [7]
<span>Indeed, this is one of the odd results in physics. A system of two polarizing filters arranged as shown below trasmits no light.</span>
8 0
3 years ago
Read 2 more answers
A comet is in an elliptical orbit around the Sun. Its closest approach to the Sun is a distance of 4.8 1010 m (inside the orbit
creativ13 [48]

Answer:

Explanation:

From the given information:

Distance d_i = 4.8 \times 10^{10} \ m

Speed of the comet V_i = 9.1 \times 10^{4} \ m/s

At distance d_2 = 6 \times 10^{12} \ m

where;

mass of the sun = 1.98 \times 10^{30}

G = 6.67 \times 10^{-11}

To find the speed V_f:

Using the formula:

E_f = E_i + W \\ \\  where; \  \  W = 0  \ \  \text{since work done by surrounding is zero (0)}

E_f = E_i + 0 \\ \\  K_f + U_f = K_i + U_i  \\ \\ = \dfrac{1}{2}mV_f^2 +  \dfrac{-GMm}{d^2} =  \dfrac{1}{2}mV_i^2+ \dfrac{-GMm}{d_i} \\ \\ V_f = \sqrt{V_i^2 + 2 GM \Big [  \dfrac{1}{d_2}- \dfrac{1}{d_i}\Big ]}

V_f = \sqrt{(9.1 \times 10^{4})^2 + 2 (6.67\times 10^{-11}) *(1.98 * 10^{30} ) \Big [  \dfrac{1}{6*10^{12}}- \dfrac{1}{4.8*10^{10}}\Big ]}

\mathbf{V_f =53.125 \times 10^4 \ m/s}

3 0
2 years ago
If the same types of fossils are found in two separate rock layers, it's likely that the two rock layers ____. A-formed at diffe
zmey [24]
<span>B-are part of one continuous deposit.</span>
5 0
3 years ago
Read 2 more answers
For an object to be in static equilibrium, the net force must be equal to zero and and The center of gravity must be above the s
iren [92.7K]

Answer:

The normal force must equal the weight.

8 0
3 years ago
Help me get a answer ​
daser333 [38]

Answer:

I think D sorry if I'm wrong

6 0
2 years ago
Other questions:
  • Two charges, -20 C and +4.7 C, are fixed in place and separated by 3.0 m. a. At what spot along a line through the charges is th
    6·1 answer
  • Before 1960, people believed that the maximum attainable coefficient of static friction for an automobile tire on a roadway was
    13·1 answer
  • Moustapha jones drives east at 100km/hr for 3 hours then back west at 80km/hr for 1.5 hours. which pair of answers gives his ave
    8·1 answer
  • What properties does a loud, shrill whistle have? a.) high amplitude, high frequency
    7·1 answer
  • Reeti has a mass of 51.0 kg. The Gravitron, a ride that spins so fast that the floor can be removed without the riders falling,
    13·1 answer
  • Someone plz help me with this problem!!!
    10·1 answer
  • Answer please, anyone?
    8·1 answer
  • What is the formula for finding the velocity?
    15·2 answers
  • The maximum electric field strength in air is 3.0 Mv/m . Stronger electric fields ionize the air and create a spark. What is the
    9·1 answer
  • Which object would have MORE kinetic energy?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!