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
Lesechka [4]
3 years ago
5

The frequency of a wave is 250hz. What is the period

Physics
1 answer:
antoniya [11.8K]3 years ago
8 0

Answer:

Hope it helps for you :)))))

You might be interested in
What will happen to the force between 2 charged objects if the mass of one of the charges is doubled and the distance between th
bekas [8.4K]

The size of the force varies inversely as the square of the distance between the two charges. Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing to one-fourth of the original value
7 0
2 years ago
Which of the following produces a physical change ?
stellarik [79]

Answer:

B: leaving metal outside in the rain until rust forms an it's surface

4 0
2 years ago
A ball is at rest at the top of a hill until a boy kicked it with his foot. What is the force that causes motion in this scenari
vazorg [7]
The boy’s foot causes the motion. His foot is the one that causes the ball to roll down the hill.
3 0
3 years ago
A 5-m steel beam is lowered by means of two cables unwinding at the same speed from overhead cranes. As the beam approaches the
ArbitrLikvidat [17]

Answer:

a) The angular acceleration of the beam is 0.5 rad/s²CW (direction clockwise due the tangential acceleration is positive)

b) The acceleration of point A is 3.25 m/s²

The acceleration of point E is 0.75 m/s²

Explanation:

a) The relative acceleration of B with respect to D is equal:

a_{B} =a_{D} +(a_{B/D} )_{n} +(a_{B/D} )_{t}

Where

aB = absolute acceleration of point B = 2.5 j (m/s²)

aD = absolute acceleration of point D = 1.5 j (m/s²)

(aB/D)n = relative acceleration of point B respect to D (normal direction BD) = 0, no angular velocity of the beam

(aB/D)t = relative acceleration of point B respect to D (tangential direction BD)

a_{B} =a_{D}  +(a_{B/D} )_{t}

2.5j=1.5j  +(a_{B/D} )_{t}\\(a_{B/D} )_{t}=j=1m/s^{2}

We have that

(aB/D)t = BDα

Where α = acceleration of the beam

BDα = 1 m/s²

Where

BD = 2

2\alpha =1\\\alpha =0.5rad/s^{2}CW

b) The acceleration of point A is:

a_{A} =a_{D}  +(a_{A/D} )_{t}

(aA/D)t = ADαj

a_{A} =a_{D}  +AD\alpha j\\a_{A}=1.5j+(3.5*0.5)j\\a_{A}=3.25jm/s^{2}

The acceleration of point E is:

(aE/D)t = -EDαj

a_{E} =a_{D}  -ED\alpha j\\a_{E}=1.5j-(1.5*0.5)j\\a_{E}=0.75jm/s^{2}

7 0
3 years ago
Which statement describes how this diagram could be changed so that it
Dominik [7]

Answer:

b. add a magnetic metal core

Explanation:

a p e x test

8 0
3 years ago
Read 2 more answers
Other questions:
  • What accurately describes the relationship between brain damage and language impairment?
    15·2 answers
  • I'm a given chemical reaction, the energy of the products is less than the energy of the reactants. Which statement is true for
    14·2 answers
  • The law of conservation of momentum states that the total momentum of interacting objects does not _______. This means the total
    11·2 answers
  • A girl on the beach sees 8 waves pass in 4 s. If the wavelength of each
    12·2 answers
  • As energy transformations occur within a system, the total energy of the system it A)increases B) decreases C) remains constant
    13·1 answer
  • Does your BMR increase decrease stay the same or dissapear as you age?
    10·1 answer
  • What must the condition of the alveoli be in order for gas exchange to occur
    10·1 answer
  • 1. Two wires - A and B - with circular cross-sections have identical lengths and are made of the same material. Yet, wire A has
    15·1 answer
  • Why does a Parallel Circuit still continue to function after a switch turns off one bulb but continues to pass through the secon
    5·1 answer
  • What is a quasar made of?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!