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
Andre45 [30]
3 years ago
7

spring is compressed 4.2 cm. If a box is placed at the end of the compressed spring, and let go, how far up the ramp will the sp

ring cause the box to travel? Ignore any frictional effects.
Physics
1 answer:
mariarad [96]3 years ago
3 0

Answer:

0.81 m

Explanation:

K= 36 N/m

θ= 30°

mass m = 8 kg

let the distance moved by the box be d

We can  solve this using

Apply conservation of energy

\frac{1}{2}kx^2= mg sin\theta\times d

d= 1/2×k×x^2/ mg sinθ

d= \frac{1}{2}\times36(0.042)^2/8\times9.81sin30

d  = 0.81 m

You might be interested in
If a ball with an original velocity of zero is dropped from a tall structure and it takes 7 seconds to hit the ground, what velo
Colt1911 [192]
The velocity of the ball when it reaches the ground is equal to B. 68.6 m/s. This value was obtained from the formula Vf = Vi + at. Vf is the final velocity. Vi is the initial velocity. The acceleration is "a", while the time of travel is "t". The solution is:

<span>Vf = Vi + at
</span>Vf = 0 + (-9.8 m/s^2) (7 s)
Vf = -68.6 m/s

The negative sign denotes the direction of the ball.
5 0
3 years ago
Read 2 more answers
Please help :)<br><br><br> Microwaves are transmitted by ....... ?
Dima020 [189]
Microwaves are transmitted by Radio Waves.
4 0
3 years ago
In a car with a mass of 4,000 KG is accelerating at a rate of 2m/s2 and hits a tree what force does it have
Ilia_Sergeevich [38]

According to Newton's second law of motion, the acceleration of a body is directly proportional to the force acting on the body and inversely proportional to its mass. The formula for this law is

F=ma

=4000kg * 2m/s 2 =8000N

3 0
3 years ago
A physical science test book has a mass of 2.2kg. . What is the weight on the earth
dem82 [27]
Weight = mg,          g ≈ 9.8 m/s²

Weight = 2.2 * 9.8 ≈ 21.56 N
8 0
3 years ago
Read 2 more answers
The X and Y components of a vector are described in the image below. Which of the following will be accurate when solving for th
DochEvi [55]
That’s right hope this helpppeedssd
5 0
3 years ago
Other questions:
  • Why are all machines not 100% efficient<br> A. Mass<br> B. Gravity <br> C. Friction <br> D. Distance
    12·2 answers
  • Simon puts new batteries in his radio-controlled car and its controller. He activates the controller, which sends a radio signal
    10·1 answer
  • In order to catch a fast-moving softball with your bare hand, you extend your hand forward just before the catch and then let th
    8·1 answer
  • When a plant is entering the calvin cycle of photosythesis______.
    7·2 answers
  • We can model a pine tree in the forest as having a compact canopy at the top of a relatively bare trunk. Wind blowing on the top
    9·1 answer
  • A parallel-plate capacitor with plates of area 540 cm2 is charged to a potential difference V and is then disconnected from the
    7·1 answer
  • A toy plane with a mass of 1.5 kg is flying in the air at 8.0 m/s. What is its kinetic energy?
    5·2 answers
  • Swimmers at the beach are tanning on towels. Which method of heat transfer is responsible for their tan? *
    8·2 answers
  • Is a frame of reference usually moving
    6·1 answer
  • 7. An Archimedean screw is a screw within a closely fitting cover, so that water can be raised when the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!