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
kotegsom [21]
3 years ago
11

A large raindrop-the type that lands with a definite splat-has a mass of 0.0014 g and hits your roof at a speed of 8.1 m/s. a. W

hat is the magnitude of the impulse delivered to your roof? b. If the raindrop comes to rest in 0.37 ms, what is the magnitude of the force of the impact?
Physics
1 answer:
DENIUS [597]3 years ago
5 0

Answer

given,

mass of the drop, m = 0.0014 g

speed of the drop, u = 8.1 m/s

a) Change in momentum is equal to impulse

   final velocity of the drop, v = 0 m/s

   J = m ( v - u )

   J = 0.0014 x 10⁻³ x ( 0 - 8.1 )

   J = -1.134 x 10⁻⁵ kg.m/s

impulse of the roof = - J = 1.134 x 10⁻⁵ kg.m/s

b) time, t = 0.37 m s

   impact of force = ?

  we know

     J = F x t

   1.134 x 10⁻⁵ = F x 0.37 x 10⁻³

     F =  0.031 N

the magnitude of the force of the impact is equal to F =  0.031 N

You might be interested in
What are the four different types of economic resources?
77julia77 [94]
The factors of production are resources that are the building blocks of the economy; they are what people use<span> to </span>produce goods<span> and services. Economists divide the factors of production into four categories: </span>land<span>, </span>labor<span>, </span>capital<span>, and entrepreneurship. hope that helped</span>
8 0
3 years ago
A baseball pitcher throws a baseball horizontally at a linear speed of 49.4 m/s. Before being caught, the baseball travels a hor
RideAnS [48]

Answer:

v = 3.61 m/s

Explanation:

As we know that ball travels horizontal distance of 24.7 m with uniform speed 49.4 m/s

so we will have

t = \frac{x}{v_x}

t = \frac{24.7}{49.4}

t = 0.5 s

now in the same time ball is turned by angle

\theta = 52.7 rad

now we know that

\theta = \omega t

52.7 = \omega (0.5)

\omega = 105.4 rad/s

now the tangential speed of a point at equator is given as

v = r\omega

v = 0.0343(105.4)

v = 3.61 m/s

4 0
4 years ago
An electric field of intensity 3.7 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.3
jekas [21]

Answer:

a)906.5 Nm^2/C

b) 0

c) 742.56132 N•m^2/C

Explanation:

a) The plane is parallel to the yz-plane.

We know that

flux ∅= EAcosθ

3.7×1000×0.350×0.700=906.5 N•m^2/C

(b) The plane is parallel to the xy-plane.

here theta = 90 degree

therefore,

0  N•m^2/C

(c) The plane contains the y-axis, and its normal makes an angle of 35.0° with the x-axis.

therefore, applying the flux formula we get

3.7×1000×0.3500×0.700×cos35°= 742.56132 N•m^2/C

4 0
3 years ago
Read 2 more answers
True or false? If the speed of an object doubles, its kinetic energy will also double.
Anastasy [175]

Answer:

False

Explanation:

It's kinetic energy would change to four times the amount.

4 0
3 years ago
HELP WILL MEDAL!!!! HELP
steposvetlana [31]
Here try this. The pic is the answer

8 0
3 years ago
Other questions:
  • Which of these characteristics did all of the five waves of immigrants have in common A. They all had the same political beliefs
    6·1 answer
  • Which form of energy does a plant store when light is transformed during photosynthesis?
    5·2 answers
  • Which planet spins on it's side Uranus or neptune?
    8·2 answers
  • How to make green colour with two colours?
    10·2 answers
  • What happens to a light ray if it is incident on a reflective surface along the normal?
    8·1 answer
  • Please help I will give you brainlest <br> Please make sure that's this answer is correct
    7·2 answers
  • The temperature at which the vapor pressure of a liquid equals the environmental pressure surrounding the liquid is best defined
    8·2 answers
  • No interior de um calorímetro de capacidade térmica 6 cal/°C encontram-se 85 g de um líquido a 18°C. Um bloco de cobre de massa
    15·2 answers
  • What type of reaction occurs when an egg cooks in a pan?
    14·2 answers
  • Sam heaves a 16lb shot straight upward, giving it a constant upward acceleration from rest of 35 m/s^2 for 64.0 cm. He releases
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!