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
kaheart [24]
3 years ago
15

A spring with spring constant 15.5 N/m hangs from the ceiling. A ball is suspended from the spring and allowed to come to rest.

It is then pulled down 7.00 cm and released. The ball makes 37.0 oscillations in 22.0 seconds.1) What is its the mass of the ball?
2) What is its maximum speed?
Physics
1 answer:
Aloiza [94]3 years ago
6 0

Answer:

A) 138.8g

B)73.97 cm/s

Explanation:

K = 15.5 Kn/m

A = 7 cm

N = 37 oscillations

tn = 20 seconds

A) In harmonic motion, we know that;

ω² = k/m and m = k/ω²

Also, angular frequency (ω) = 2π/T

Now, T is the time it takes to complete one oscillation.

So from the question, we can calculate T as;

T = 22/37.

Thus ;

ω = 2π/(22/37) = 10.5672

So,mass of ball (m) = k/ω² = 15.5/10.5672² = 0.1388kg or 138.8g

B) In simple harmonic motion, velocity is given as;

v(t) = vmax Sin (ωt + Φ)

It is from the derivative of;

v(t) = -Aω Sin (ωt + Φ)

So comparing the two equations of v(t), we can see that ;

vmax = Aω

Vmax = 7 x 10.5672 = 73.97 cm/s

You might be interested in
What is the frequency of a wave having a period Equal to 18 seconds
madreJ [45]
The frequency is. 1/18. per second.
5 0
3 years ago
What is the algebraic expression for the component of the normal force in the vertical direction?
inna [77]

The algebraic expression for the component of the normal force in the vertical direction is Force= product of mass and area.

<h3>What is Force?</h3>

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction. Or, there is a specific meaning to the word "force." At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.

To learn more about Force, visit

brainly.com/question/13014979

#SPJ4

5 0
1 year ago
3. Why is the term cold blooded a misconception? Explain​
jok3333 [9.3K]

Answer:

The term “cold-blooded” implies that these animals are in a never-ending struggle to stay warm. That really isn't correct. A cold-blooded animal can warm up their blood by being in the sun for hours.

7 0
3 years ago
Joules constant, 4.1868 J/cal, is an equivalence relation for 4.1868 Joules of work for 1 calorie of heat delivered to a substan
Llana [10]

Answer:

The final answer is 6.1 BTU = 6.5621*103 KJ

Explanation:

1 BTU= 252 cal\\1 BTU =252 × 4.2 kJ\\6.1 BTU = 252 × 6.1×4.2 kJ                = 6562.08 kJ\\                = 6.5621 × 103 kJ\\

Hence, 6.1 BTU = 6.5621 × 103 kJ

7 0
3 years ago
Which of the following activities works on muscle strength? A. cutting hedges B. moving furniture C. raking leaves D. vacuuming
Ksenya-84 [330]
The answer would be B
3 0
3 years ago
Other questions:
  • You have a beaker with a layer of olive oil floating on top of water. A ray of light travels through the oil and is incident on
    12·1 answer
  • The electric potential in a certain region is given by the equation V(x,y,z) = 3αx2y3 - 2γx2y4z2 where the potential is in volts
    11·1 answer
  • You measure the voltage difference of a circuit to be 5 V and the resistance to be 1,000 ohms.
    8·1 answer
  • What is an important difference between medieval muslim and christian art?
    15·1 answer
  • The moon has a weaker gravitational force than earth. Sofia weighs 50 lbs. on earth. How much will she weigh on the moon? exactl
    9·2 answers
  • ________ is defined as physical, social, and economic access to sufficient, safe, and nutritious food to meet dietary needs and
    9·1 answer
  • To keep the calculations fairly simple, but still reasonable, we shall model a human leg that is 92.0 cm long (measured from the
    9·1 answer
  • Một vật chuyển động tròn đều có chu kì T = 0,25 s. Tính tần số chuyển động f của vật?
    9·1 answer
  • A 90N force towards postive x-axis, A 50N force towards negative x-axis applied on 5kg object. Find:- A) the net force on the ob
    10·1 answer
  • A spring has a length of 0.270 m when a 0.300 kg mass hangs from it, and a length of 0.750 m when a 2.80 kg mass hangs from it.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!