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
kolbaska11 [484]
3 years ago
12

A spring is hung from the ceiling. A 0.442-kg block is then attached to the free end of the spring. When released from rest, the

block drops 0.150 m before momentarily coming to rest, after which it moves back upward. (a) What is the spring constant of the spring
Physics
1 answer:
siniylev [52]3 years ago
6 0

Answer:

K=58.8N/m

Explanation:

From the question we are told that:

Mass M=0.442

Drop distance d=0.150

Generally the equation for Spring Constant is mathematically given by

 K=\frac{2mg}{x}

 K=\frac{2*0.442*9.8}{1.150}

 K=58.8N/m

You might be interested in
A boy of mass 50 kg walks up a staircase of 10 steps each 15 cm high. Calculate the work done.​
Burka [1]

Answer:

735 J

Explanation:

Total height reached(displaced)=10x15 cm

= 10 x 15/100 m

= 1.5 m

Workdone = F.S (force x displacement)

Here, the boy is traveling against the gravitation force(=mg) , and traveled a height of 1.5m

Hence,

Workdone = 50 x 9.8 x 1.5 J

= 735 J

3 0
3 years ago
Does an electrochemical cell use two terminals or a voltmeter?
goldfiish [28.3K]

A voltmeter does so.

5 0
4 years ago
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.00 m above. The brother’s outst
MakcuM [25]

Answer:10.02 m/s

4.68 m/s

Explanation:

Given

height of building=4 m

time taken=1.5 s

(a)Let u be the initial velocity

using equation of motion

s=ut+\frac{gt^2}{2}

4=u\times 1.5-\frac{9.81\times 1.5^2}{2}

8=u\times 3-9.81\times 2.25

u=10.02 m/s

(b)Velocity of keys just before keys were caught

v^2-u^2=2as

v^2=10.02^2-2(-9.81)\cdot 4

v^2=21.92

v=\sqrt{21.92}=4.68 m/s

3 0
3 years ago
Which of the following cannot be used for measurement of time
Snowcat [4.5K]

Answer:

D. blinking ofeyea

Explanation:

not really sure

6 0
3 years ago
Superguy is flying at treetop level near Paris when he sees the Eiffel Tower elevator start to fall (the cable snapped). His x-r
brilliants [131]

If the elevator falls from a height of 240 meters and Superguy is 1 km away, he will have 6.5 seconds to save Lois, which means that his average speed must be 150 meters per second.

<h3>What is the average speed?</h3>

The total distance traveled by an object divided by the total time taken is the average speed.

The average speed of an object indicates the pace at which it will traverse a distance. The metric unit of speed is the meter per second.

Given data:

Distance of super guy from the tower = 1.00 km

height(h)= 240 m

From the Newtons' second equation of motion:

\rm S= ut+\frac{1}{2} at^2 \\\\\ 210 = 0+\frac{10}{2} t^2 \\\\ t= \sqrt 42\\\\t=6.5 \ sec

Distance is the foundation as the product the velocity and time;

D=ut

u=d/t

u=1000/t

u=1000/6.5

u=150 m/sec

Hence, he will have 6.5 seconds to save Lois, which means that his average speed must be 150 meters per second.

To learn more about the average speed, refer to the link;

brainly.com/question/12322912

#SPJ1

4 0
2 years ago
Other questions:
  • When a loose brick is resting on a wall, it has energy. When the brick is pushed off the wall and is falling down, the amount of
    13·2 answers
  • Is physics and physical science the same thing?
    13·1 answer
  • What is the purpose of a lanyard attached to an ignition safety switch??
    8·2 answers
  • What is acceleration?
    10·1 answer
  • A cyclist travels 36km in 3 hours. What is the cyclist’s average speed?
    8·1 answer
  • In the graph above, how does the acceleration at A compare with the acceleration at B?
    10·2 answers
  • The drawing shows three identical springs hanging from the ceiling. Nothing is attached to the first spring, whereas a 4.5 n blo
    14·1 answer
  • A frictionless pendulum of length of 3 m swings with an amplitude of 10o. At its maximum displacement, the potential energy of t
    11·1 answer
  • Which has a greater buoyant force on it, a 35.0-cm3 piece of wood floating with part of its volume above water or a 35.0-cm3 pie
    13·1 answer
  • Help pls lots of pts
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!