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
siniylev [52]
3 years ago
7

I throw a thin uniform circular disc (think of a frisbee) into the air so that it spins with angular velocity ω about an axis wh

ich makes an angle α with the axis of the disc. Show that the magnitude of ω is constant.
Physics
1 answer:
Ad libitum [116K]3 years ago
5 0

Answer:

| w | = w√ ( sin^2 ∝ + cos^2∝ ) shows that w is independent of time hence it is constant

Explanation:

prove that the magnitude of <em>w</em> is constant

attached below is a detailed solution of the question

You might be interested in
Sleep is a difficult problem for dolphins because dolphins __________. A. need more sleep than their predators B. must be awake
Alex17521 [72]
Need more sleep than their predators
5 0
3 years ago
Read 2 more answers
A rocket at rest with a mass of 942 kg is acted on by an average net force of 6,731 N upwards for 21 s. What is the final veloci
Galina-37 [17]

Answer:

Explanation:

Givens

m = 942

F = 6731

t = 21 seconds

vi = 0

vf = ?

Formula

F = m * (vf -  vi )  / t

Solution

6731 = 942*(vf - 0)/21          Multiply both sides by 21

6731 * 21 = 942*vf

141351 = 942*vf                   Divide by 942

141351/942 = vf

vf = 151 m/s

6 0
3 years ago
How is the voltage V across the resistor related to the current I and the resistance R of the resistor? (Use I for current and R
VladimirAG [237]

Answer:

This relationship is explained by Ohm's law

Explanation:

Ohm's law states that the current flowing through a circuit or a resistor is directly proportional to the voltage across the resistor and inversely proportional to the resistance. Where current is i, voltage is v and resistance is r, Ohm's law can be represented mathematically as

V= IR

8 0
4 years ago
Number of valence electrons for calcium?
zimovet [89]
Calcium has 2 valence electrons
7 0
3 years ago
Read 2 more answers
2 Ten identical lengths of wire are laid closely side-by-
Mice21 [21]

Answer:

(a) 0.71 mm

(b) 0.158 cubic cm

Explanation:

The width of one wire is the diameter of the wire.

(a) Let the diameter of each wire is d.

So, 10 d = 14.2 mm

d = 1.42 mm

radius of each wire, r = d/2 = 1.42/2 = 0.71 mm

(b) Length, L = 10 cm

The volume of the single wire is given by

V =\pi\times r^2\times h \\\\V =3.14\times 0.071^2\times 10\\\\V =0.158 cm^3

7 0
3 years ago
Other questions:
  • Stars only emit light within the visible spectrum of the electromagnetic spectrum.
    14·1 answer
  • An electron moves through a uniform electric field E = (2.00î + 5.40ĵ) V/m and a uniform magnetic field B = 0.400k T. Determine
    6·1 answer
  • When a candle burns, which forms of energy does the chemical energy in the candle change to? A. light and sound B. heat and soun
    15·2 answers
  • Use the chemical reaction to answer the question.
    7·2 answers
  • A physicist drops astone off the top of cliff over looking a lake. She hears the splash 4 second after releasing the stone?
    9·1 answer
  • Which of the following is NOT true about essential body fat? A. The human body would not function normally without essential bod
    7·2 answers
  • A marble is thrown horizontally with a speed of 15.0 m/s from the top of a building. When it strikes the ground, the marble has
    12·2 answers
  • Can you solve the issue
    12·1 answer
  • Perform the following mathematical operation and report the answer to the correct number of significant figures 143.6/21.2
    12·1 answer
  • S When two unknown resistors are connected in series with a battery, the battery delivers total power Ps and carries a total cur
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!