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
OLga [1]
3 years ago
5

I NEED A QUESTION ON THE CONSERVATION OF MECHANICAL ENERGY AND THE ANSWER PLEASE

Physics
1 answer:
zavuch27 [327]3 years ago
3 0

Answer:

See Below

Explanation:

Question:

A 200 g dart is pressed against the spring of a toy dart gun. The spring (with spring constant k = 500 N/s) is compressed by 6.0 cm and released. If the dart detaches from the spring when the spring reaches its equilibrium length (x = 0), what is the launch speed of the dart?

Answer:

PE = KE

1/2kx^2 = 1/2mv^2

Sole for v:

v = sqrt(kx^2/m)

v = sqrt(500*(0.06)^2/0.200)

v = sqrt(1.8/0.200

v = sqrt(9)

v = 3 m/s

I really hoped this helped you. :) Sorry if it didn't.

You might be interested in
Calculate the rate of loss of heat through a glass window of area 200 CM square and thickness 0.5 CM where temperature inside is
saw5 [17]

Answer:

The inner and outer surfaces of a 0.5-cm thick 2-m by 2-m window glass in winter are 10°C and 3°C, respectively. If the thermal conductivity of the glass

Explanation:

7 0
3 years ago
____ 1. A mineral is inorganic, which means that it contains
Dimas [21]

Answer:

no material that were once part of living things

8 0
3 years ago
Urgent!!!!!! 20 points!!!!!!<br> how are the speed, wavelength and frequency of a wave related
zheka24 [161]

Answer:

The higher the frequency, the shorter the wavelength. Because all light waves move through a vacuum at the same speed, the number of wave crests passing by a given point in one second depends on the wavelength. Speed shows how long it takes for wavelengths to travel.

6 0
3 years ago
What elements make gas
kari74 [83]
<span>carbon, hydrogen, and oxygen onLY</span>
7 0
3 years ago
Read 2 more answers
You are an astronaut floating alongside your space ship. If you throw a baseball with a speed of 10 m/s, you will move at:
ZanzabumX [31]

Answer:

D

Explanation:

There is no friction to stop you from moving BC you are in space, however you have a larger mass than the ball, so it takes more force to get you up to the same speed as the baseball. You will move in the opposite direction of the ball because you exerted force on the ball in one direction and therefore yourself in the opposing direction.

4 0
3 years ago
Other questions:
  • Four of your friends are in new relationships, but only two of these relationships are healthy. Which of your friends are in unh
    9·2 answers
  • Kalea throws a baseball directly upward at time t = 0 at an initial speed of 13.7 m/s. How high h does the ball rise above its r
    15·1 answer
  • A 800 kg safe is 2.1 m above a heavy-duty spring when the rope holding the safe breaks. The safe hits the spring and compresses
    15·1 answer
  • Describe how compass needle move when it is placed in a magnet ?
    8·1 answer
  • Explain concept of donor levels and accepter levels in extrinsic semiconductors and How can Fermi level be defined for conductor
    12·1 answer
  • Superman does an exhibition run at a track meet. When he runs the 200 m
    9·1 answer
  • A science teacher ran a marathon. After the race she showed her students the silver blanket she was given to keep her warm.A gro
    5·1 answer
  • A truck initially traveling at a speed of 22 m/s increases at a constant rate of 2.4 m/s^2 for 3.2s. What is the total distance
    12·1 answer
  • The acceleration of a particle is directly proportional to the square of the time t. When t =0, the particle is at x =24 m. Know
    14·1 answer
  • Consider the following scenario. A car for which friction is not negligible accelerates from rest down a hill, running out of ga
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!