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
Svetach [21]
3 years ago
14

A street light is mounted at the top of a 15-ft-tall pole. A man 6 ft tall walks away from the pole with a speed of 5 ft/s along

a straight path. How fast is the tip of his shadow moving when he is 40 ft from the pole? (a) What quantities are given in the problem? (b) What is the unknown? (c) Draw a picture of the situation for any time t. (d) Write an equation that relates the quantities. (e) Finish solving the problem.
Physics
1 answer:
snow_lady [41]3 years ago
5 0

Answer:

d) or (e) but It'll most likely be (d) because their is an option of writing a nother equation related to this,so d. final answer. Good Luck

You might be interested in
A very small source of light that radiates uniformly in all directions produces an electric field with an amplitude of ܧ ௠at a d
Angelina_Jolie [31]

A very small source of light that radiates uniformly in all directions produces an electric field with an amplitude of ܧ ௠at a distance R from the source. What is the amplitude of the magnetic field at a point 2R from the source?

If the distance from the source is doubled. The amplitude of the magnetic field is smaller 4 times.

4 0
3 years ago
Can you help me? Thanks! 10+ points!
Elis [28]

Explanation:

velocity: average velocity equals Displacement /change in time.

Kinetic energy: K=1/2mv^2 (m = Mass) ( v = Velocity).

speed using the kinetic energy is also KE =1/2mv^2

(M in Kg) (V in m/s)

4 0
2 years ago
Read 2 more answers
Jumping up before the elevator hits. After the cable snaps and the safety system fails, an elevator cab free-falls from a height
noname [10]

Answer:

a)   I = 2279.5 N s , b) F = 3.80 10⁵ N, c)   I = 3125.5 N s  and d)  F = 5.21 10⁵ N

Explanation:

The impulse is equal to the variation in the amount of movement.

    I =∫ F dt = Δp

     I = mv_{f} - m v₀

Let's calculate the final speed using kinematics, as the cable breaks the initial speed is zero

   v_{f}² = V₀² - 2g y

   v_{f}² = 0 - 2 9.8 30.0

   v_{f} = √588

   v_{f} = 24.25 m/s

a) We calculate the impulse

   I = 94 24.25 - 0

   I = 2279.5 N s

b) Let's join the other expression of the impulse to calculate the average force

   I = F t

  F = I / t

  F = 2279.5 / 6 10⁻³

  F = 3.80 10⁵ N

just before the crash the passenger jumps up with v = 8 m / s, let's take the moments of interest just when the elevator arrives with a speed of 24.25m/s down and as an end point the jump up to vf = 8 m / n

c)     I = m v_{f} - m v₀

       I = 94 8 - 94 (-24.25)

       I = 3125.5 N s

d)     F = I / t

       F = 3125.5 / 6 10⁻³

       F = 5.21 10⁵ N

7 0
3 years ago
The gauge pressure in a car tyre is 300 kPa at 20°C. After moving at high speed, the tyre has
Leno4ka [110]

Answer:

229kPa

Explanation:

4 0
3 years ago
Read 2 more answers
Why does rhododendron not grow well in the terai region of nepal give reason
Andrews [41]

Answer:

Tge Rhododendrob is the national flower of Nepal. The hills and mountain sides ranges of Nepal are decorated with diff colours and shapes

3 0
2 years ago
Other questions:
  • how much energy is required to turn 20 gram cube of ice at a temperature of -10 degrees Celsius into liquid water at a temperatu
    10·1 answer
  • Two charges are located in the x – y plane. If ????1=−4.10 nC and is located at (x=0.00 m,y=0.600 m) , and the second charge has
    11·1 answer
  • A 2-kilogram object falls 3 meters. a. How much potential energy did the object have before it fell? b. How much work was accomp
    15·1 answer
  • At a speed of 60 mph, how far does your car travel in 3 seconds
    10·1 answer
  • Two cars are moving towards each other and sound emitted by first car with real frequency of 3000 hertz is detected by a person
    6·1 answer
  • When sound is created it travels to the car through a
    13·1 answer
  • The bending of a wave as it moves from one medium to another is called
    6·1 answer
  • Write the answer:<br>physics ... i need help ​
    11·1 answer
  • What is the frequency of a sound wave directly related to?
    10·1 answer
  • In this picture there is a circuit and the boxes are circuit component please tell how many nodes are there in circuit?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!