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
klemol [59]
3 years ago
12

A spring whose spring constant is 850 N/m is compressed 0.40 m. What is the maximum speed it can give to a 500 g ball? ____m/s

Physics
1 answer:
Vlada [557]3 years ago
6 0
Answer: 16.5 m/s

Explanation:
By law of conservation of energy:

\frac{kx^2}{2} =  \frac{mv^2}{2} --- (1)

Since k = Spring Constant = 850 N/m
x = 0.40 m
m = 500g = 0.5kg
v=?

Plug in the values in (1):

\frac{(850)(0.40^2)}{2} =  \frac{0.5v^2}{2}  \\ v =  \sqrt{272} \\ v = 16.49 m/s\\  v = 16.5 m/s(approx)
You might be interested in
The liquid pressure exerted in one direction only​
Wewaii [24]
The pressure exerted by a liquid on an object increases as we go more deep into the liquid and this pressure is called as hydro static pressure . if we consider a part of the static fluid then all the horizontal forces will cancel out while the vertical forces will add vectorilly and due to which a pressure difference is created . so as we go more deep the pressure increase .

Now pressure is a scalar so it does not depend on direction but when two objects are on the same level with respect to a reference level then the pressure exerted on them by fluid is always the same . hope this helps
8 0
2 years ago
A rocket consists of a shuttle and a fuel tank. The rocket flies through the air with a momentum of 180000kgm/s at a velocity of
babunello [35]

Answer:

Answer is 1000kg

Hope it help

6 0
2 years ago
A pilot drops a bomb from a plane flying horizontally with constant velocity. When the bomb hits the ground, the horizontal loca
polet [3.4K]

Answer: The horizontal location of the plane will BE OVER THE BOMB

Explanation:

As soon as the bomb was dropped, the bomb will fall under gravity (free fall) and the location of the plane continues to increase horizontally till the bomb reaches the ground which is a falling distance to be travelled by the bomb at 9.8m/s²

8 0
3 years ago
Find the unit vector in the direction of vector B=4i+2j-5k​
solmaris [256]

Answer:

\frac{4}{\sqrt{45} } i\,+\frac{2}{\sqrt{45} } j-\frac{5}{\sqrt{45} } k

Explanation:

for the unit vector, we need to divide the given vector by its norm, because it should be in the SAME direction as the original vector, but of magnitude "1".

We notice that the norm of the given vector is:

\sqrt{4^2+2^2+(-5)^2} =\sqrt{45}

Then, the unit vector becomes:

\frac{4}{\sqrt{45} } i\,+\frac{2}{\sqrt{45} } j-\frac{5}{\sqrt{45} } k

7 0
2 years ago
If two forces are in the same direction then do they cancel each other out
stellarik [79]
Im pretty sure that they do

3 0
3 years ago
Other questions:
  • A certain metal wire has a cross sectional area of 1 mm2 and is 1 m long. when it is hung from the ceiling and a 10 kg mass is h
    10·1 answer
  • Why does a dropped feather hit the ground later than a rock dropped at the same time? *
    12·2 answers
  • Refractive index measures the speed of light in a vacuum to its speed in
    11·1 answer
  • The electric field between two parallel plates has a magnitude of 875 n/
    11·1 answer
  • What acceleration is produced when a 12-N force is exerted on a 3-kg object?
    6·1 answer
  • A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed of 79.6 m/s at ground level.
    11·1 answer
  • What if someone refers to a crystal's " habit" what are they referring to?
    7·1 answer
  • What’s the voltage of a battery in a circuit with resistance of 3 ohms and current of 5 amps?
    10·1 answer
  • The number of mushrooms needed by a pizza restaurant is given by the
    12·1 answer
  • Plzzz help me with this<br> I’ll give brainliest
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!