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
Usimov [2.4K]
3 years ago
13

A man 6.00 ft tall approaches a street light 15.0 ft above the ground at the rate of 4.00 ​ft/s. How fast is the end of the​ man

's shadow moving when he is 14.0 ft from the base of the​ light?

Physics
1 answer:
klio [65]3 years ago
7 0

Answer:

\frac{dx}{dt} = 10 ft/s

Explanation:

As per given figure let say the tip of the shadow is at distance "x" from the base of the lamp

so here we have

\frac{x}{15} = \frac{x - y}{6}

so we have

6x = 15 x - 15 y

15 y = 9 x

now we have

5\frac{dy}{dt} = 2\frac{dx}{dt}

5(4) = 2\frac{dx}{dt}

\frac{dx}{dt} = 10 ft/s

You might be interested in
A magnetically soft material is placed in a strong magnetic field. What is the most likely outcome?
MakcuM [25]

Answer:

It will become a temporary magnet because the domains will easily realign.

Explanation:

3 0
3 years ago
Which part of the atmosphere is the highest layer in which planes can fly?
Rudiy27

Answer:

the stratosphere

Explanation:

Planes most commonly fly in the lower stratosphere to avoid turbulence which is common in the troposphere. little to no clouds appear in the stratosphere due to low humidity so it is easier to see.

8 0
4 years ago
Which explains why more energy is released in nuclear reactions then in chemical reactions
beks73 [17]
Nuclear reaction you are literally splitting an atom and in a chemical reaction you are not
7 0
3 years ago
I need help please ;)
ElenaW [278]

Answer:

its b.CB

Explanation:

your welcome

8 0
3 years ago
You are driving on the highway at constant speed of 60 mph for 1 hour and then 70 mph for 2 hours. What was your average speed f
Elis [28]

Answer:

it would be 66.66

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which process is associated with an increase in kinetic energy, and what experimental evidence supports this?
    10·1 answer
  • What is the external-internal pressure difference when the diver's lungs are at a depth of 6.1m (about 20ft)? assume that the di
    6·1 answer
  • Action and reaction force always cancel each other. <br><br> True or False.
    11·1 answer
  • When this current is closed which way does the current flow
    9·1 answer
  • Since the density of air decreases with an increase in temperature, but the bulk modulus B is nearly independent of temperature,
    14·1 answer
  • DUE IN 15 MIN!
    5·1 answer
  • Malcolm and Ravi raced each other. The average of their maximum speeds was 260 km/h If doubled, Malcolm's maximum speed would be
    9·1 answer
  • What determines the amount of inertia an object has
    11·1 answer
  • Does the world actually end on April 21, 2021?
    9·1 answer
  • What law explains why a collapsing cloud usually forms a protostellar disk around a protostar?.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!