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
qaws [65]
3 years ago
6

An arrow is used to show a force acting on an object. what information does the arrow give about the force

Physics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0
The Force surrounds us and penetrates us. It flows through Jedis. May the Force be with you all.
You might be interested in
calculate the work done by 2N force directed at 30 degree to the vertical to move a 500g box a horizontal distance of 400 cm acr
sattari [20]

Answer:

there is no picture :o?

Explanation:

:oo

3 0
3 years ago
A roller coaster car is going over the top of a 18-mm-radius circular rise. At the top of the hill, the passengers "feel light,"
Andre45 [30]

Answer:

0.29713 m/s

Explanation:

m = Mass of person

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity

r = Radius = 18 mm

By balancing the forces in the system we have

mg-N=\dfrac{mv^2}{r}\\\Rightarrow mg-\dfrac{mg}{2}=\dfrac{mv^2}{r}\\\Rightarrow v=\sqrt{r(g-\dfrac{g}{2})}\\\Rightarrow v=\sqrt{0.018\times (9.81-\dfrac{9.81}{2})}\\\Rightarrow v=0.29713\ m/s

The velocity of the coaster is 0.29713 m/s

7 0
3 years ago
What makes a model not useful?
lina2011 [118]
Answer is b hope this helps
8 0
3 years ago
An electric furnace is to melt 40 kg of aluminium/hour. The initial temperature of aluminium is 32°C. Given that aluminium has s
gizmo_the_mogwai [7]

Answer:

Part a)

P = 13.93 kW

Part b)

R = 8357.6 Cents

Explanation:

Part A)

heat required to melt the aluminium is given by

Q = ms\Delta T + mL

here we have

Q = 40(950)(680 - 32) + 40(450 \times 10^3)

Q = 24624 kJ + 18000 kJ

Q = 42624 kJ

Since this is the amount of aluminium per hour

so power required to melt is given by

P = \frac{Q}{t}

P = \frac{42624}{3600} kW

P = 11.84 kW

Since the efficiency is 85% so actual power required will be

P = \frac{11.84}{0.85} = 13.93 kW

Part B)

Total energy consumed by the furnace for 30 hours

Energy = power \times time

Energy = 13.93 kW\times 30 h

Energy = 417.9 kWh

now the total cost of energy consumption is given as

R = P \times 20 \frac{Cents}{kWh}

R = 417.9 kWh\times  20 \frac{cents}{kWh}

R = 8357.6 Cents

3 0
3 years ago
How many species go extinct every day??
Law Incorporation [45]
Approximately 150-200 species.
5 0
3 years ago
Other questions:
  • A point charge q1 = -2.3 μC is located at the origin of a co-ordinate system. Another point charge q2 = 6.2 μC is located along
    6·1 answer
  • Dalton was one of the first scientists to experimentally prove that
    15·2 answers
  • One of the 64.3-cm-long strings of an ordinary guitar is tuned to produce the note LaTeX: B_3B 3 (frequency 245 Hz) when vibrati
    15·1 answer
  • What does a refractive index from medium 1 to medium 2 mean? Isn't one of the medium must be vacuum?
    6·1 answer
  • Three identical train cars, coupled together, are rolling east at speed v0. A fourth car traveling east at 2v0 catches up with t
    13·1 answer
  • The layers of the atmosphere are divided into layers based on changes in __________.
    10·1 answer
  • wo ships, one 200200 metres in length and the other 100100 metres in length, travel at constant but different speeds. When trave
    9·1 answer
  • 12. Since the Clean Air Act was passed in 1970, why is the air still not clean?
    10·1 answer
  • Lesson 2 History of Physical Science
    14·1 answer
  • Progress of science has not caused any ill effect true or false?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!