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
Komok [63]
3 years ago
14

PLEASE HELPPPP ME WITH THIS

Physics
1 answer:
lozanna [386]3 years ago
4 0
I am not so sure about this it is too difficult
You might be interested in
What is bought from an electric company
Luden [163]

Answer: electricity

Explanation:

8 0
3 years ago
Read 2 more answers
Vinegar (C2H4O2) and baking soda (NaHCO3) react to form sodium acetate, water, and carbon dioxide. C2H4O2 + NaHCO3 ? How many to
aliya0001 [1]

The total oxygen atoms that are exprected in the vinegar and baking soda reaction is three oxygen atoms.


Answer: B. 3




why;live

5 0
3 years ago
Read 2 more answers
True or false electrons are a lot lower in mass than protons
slavikrds [6]
True. The mass of an electron is about 1/2000 amu whereas the mass of a proton is 1 amu.
4 0
3 years ago
Read 2 more answers
A 200 – g object is tied to the end of a cord and it is turning in horizontal circle of radius 1.20 Cm at the constant 3 rev/sec
ankoles [38]

At angular speed of 3 rev/s, the object moves a distance equal to 3 times the circumference of the circle each second, or a distance of 3 • 2<em>π</em> (1.20 cm) ≈ 22.6 cm.

So, with a linear speed of 22.6 cm/s = 0.226 m/s, the object has a centripetal acceleration <em>a</em> of

<em>a</em> = (0.226 m/s)² / (0.012 m) ≈ 18.8 m/s²

directed toward the center of the circle.

7 0
3 years ago
Please help. Need help with 2d and vector problems. Please help it's urgent?
patriot [66]

Let \theta denote the angle made by a given force with the positive <em>x</em>-axis (pointing right). So in (1), <em>A</em> makes an angle of 90º - 30º = 60º, and <em>B</em> makes an angle of -45º; and in (2), <em>A</em> still makes angle of 30º, <em>B</em> makes an angle of -15º, and <em>C</em> makes one of -90º.

Separate each force vector in to <em>x</em>- and <em>y</em>-components, then compute the required vector. This involves writing each given vector \mathbf v as

\mathbf v=v_x\,\mathbf i+v_y\,\mathbf j

where

\begin{cases}v_x=\|\mathbf v\|\cos\theta\\v_y=\|\mathbf v\|\sin\theta\end{cases}

(1)

\mathbf A=200\left(\cos60^\circ\,\mathbf i+\sin60^\circ\,\mathbf j\right)=100\,\mathbf i+100\sqrt3\,\mathbf j

\mathbf B=150\left(\cos(-45^\circ)\,\mathbf i+\sin(-45^\circ)\,\mathbf j\right)=75\sqrt2\,\mathbf i-75\sqrt2\,\mathbf j

\implies\mathbf A-\mathbf B\approx-6.066\,\mathbf i+67.139\,\mathbf j

(2)

\mathbf A=25\sqrt3\,\mathbf i+25\,\mathbf j

\mathbf B=25\sqrt2(1+\sqrt3)\,\mathbf i+25\sqrt2(1-\sqrt 3)\,\mathbf j

\mathbf C=-50\,\mathbf j

\implies\mathbf A+\mathbf B+\mathbf C\approx139.894\,\mathbf i-50.882\,\mathbf j

\implies\|\mathbf A+\mathbf B+\mathbf C\|\approx148.86

4 0
3 years ago
Other questions:
  • Green plants convert light energy from the sun into ______. * a. gravitational potential energy b. chemical potential energy c.
    14·1 answer
  • A ball player catches a ball 3.24 s after throwing it vertically upward.With what speed did he throw it?
    6·1 answer
  • If you are walking to the elevator on a cruise ship , what are you probably using your frame of reference
    14·1 answer
  • 18. A circuit contains a 10 ohm resistor, a 50 ohm resistor, and an 80 ohm resistor connected in parallel. If you test this circ
    14·1 answer
  • A student in an undergraduate physics lab is studying Archimede's principle of bouyancy. The student is given a brass cylinder a
    15·1 answer
  • What is the range of these data? 6,9,2,12,3,5,9​
    9·2 answers
  • Ice melts in your<br> glass of water. What method of heat transfer causes this?
    7·1 answer
  • How are galaxies named?
    8·1 answer
  • If a person is driving a speed of 162 km and drive for 35 seconds. How far will they drive?
    14·1 answer
  • Two equal-mass balls swing down and hit identical bricks while traveling at identical speeds. Ball A bounces back, but ball B ju
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!