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
Hunter-Best [27]
3 years ago
13

Help asap physics homework, i'll give brainliest

Physics
2 answers:
Georgia [21]3 years ago
7 0

Answer:

a= 0.2 m/s^2\\s  = 20m\\t =  2 s

Explanation:

gievn

two forces are given

f_{1} = 2000 N \\f_{2} = 1800 N\\F_{net} = 2000 -1800  = 200N

A) (a) What is the acceleration of the 1000-kg boat?

f_{net} = ma\\a  = \frac{f_{net}}{m}

     a = \frac{200}{1000}\\a= 0.2 m/s^2

B) If it starts from rest, how far will it move in 10.0 s?

using kinematic equation

s = ut +\frac{1}{2}at^2\\ u = 0  \   m/s\\\\S = \frac{1}{2} at^2 \\s = \frac{1}{2} \times 0.2 \times (10)^2\\s =  10 m

(c) What will its velocity be at the end of this time?

v= u +at \\u = 0 m/s \\v =  0.2\times 10\\v = 2 m/s

Bess [88]3 years ago
5 0

Answer:bippity boppity yee

Explanation:

You might be interested in
What does displacement describe?
Katarina [22]
<span>A vector which implies that an object has been moved or has changed its position is called displacement. Displacement is usually associated with length and direction of an imaginary straight point. It is the shortest distance from the initial point to the final point of final position (P). Displacement can also be described as the length between the final and initial point on the shortest path. It means an overall change in direction  of the object or point of a body.</span>


5 0
3 years ago
A wire, of length L = 4.1 mm, on a circuit board carries a current of I = 1.96 μA in the j direction. A nearby circuit element g
tamaranim1 [39]

Answer:

The magnitude of the magnetic field B is 5.921 T.

Explanation:

Given that,

Length = 4.1 mm

B_{x}=4.9\ G

B_{y}=2.3\ G

B_{z}=2.4\ G

Current I = 1.96\ mu A

We need to calculate the magnetic field

Using formula of magnetic field

B=\sqrt{B_{x}^2+B_{y}^2+B_{z}^2}

Put the value into the formula

B=\sqrt{(4.9)^2+(2.3)^2+(2.4)^2}

B=5.921\ T

Hence, The magnitude of the magnetic field B is 5.921 T.

6 0
3 years ago
An air conditioner has a power rating of 3000 W and is used daily. Its electrical
Anarel [89]

Answer:

5.714 hours / day

Explanation:

<u>Calculate the hours used in that week </u>

120000 / 3000 = 120 / 3 = 40 hours a week

<u>Calculate the amount it is used in one day</u>

40 / 7 = 5.71428571 hours or 5.714 hours/day

5 0
2 years ago
Read 2 more answers
From this diagram which of the following can you conclude
Volgvan

Answer: A

Explanation:

I say opposites attract

3 0
3 years ago
Read 2 more answers
What is the maximum speed when the conditions are mass =450 kg, initial height= 30 m, and the roller coaster is initially at res
Zarrin [17]

Answer:

B. 24.2 m/s

Explanation:

Given;

mass of the roller coaster, m = 450 kg

height of the roller coaster, h = 30 m

The maximum potential energy of the roller coaster  due to its height is given by;

P.E_{max} = mgh\\\\PE_{max} = 450 *9.8*30\\\\PE_{max} = 132,300 \ J

P.E_{max} = K.E_{max} \ (law \ of \ conservation\ of \ energy)

K.E_{max} = \frac{1}{2}mv_{max}^2\\\\ v_{max}^2 = \frac{2K.E_{max}}{m}\\\\ v_{max}^2 = \frac{2*132300}{450}\\\\ v_{max}^2 =588\\\\v_{max} = \sqrt{588}\\\\  v_{max} = 24.2 \ m/s

Therefore, the maximum speed of the roller coaster is 24.2 m/s.

3 0
3 years ago
Other questions:
  • Who developed radiometric dating? What age did he assign to the oldest rocks?
    11·1 answer
  • Which of the following developmental milestones is likely achieved before a child's first birthday?
    11·2 answers
  • One problem with wind energy as a major source of electricity is _____. (1 point)
    8·1 answer
  • Help please number 8 an 9
    7·1 answer
  • During a launch, a space shuttle increases its speed starting from 6 seconds to
    9·1 answer
  • Which of these scientists worked on a team that unified the electromagnetic and weak nucleus force?
    8·2 answers
  • A proton beam in an accelerator carries a current of 130 μa. if the beam is incident on a target, how many protons strike the ta
    13·1 answer
  • Discuss what it means to view a moving objectt from a frame of reference. Supply an example that illustrates your explanation.
    7·1 answer
  • Neylin engineered (drove) a horse train from Miami and traveled toward New York. 14
    5·1 answer
  • How much force is needed to lift a 25 kg mass at a constant velocity?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!