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
n200080 [17]
2 years ago
6

A solid ball with a mass of 4.25 kg and a

Physics
1 answer:
Liono4ka [1.6K]2 years ago
8 0

7.20 units long yea
You might be interested in
Barometers have long been used to predict the weather. Jay and Jeff were responsible for recording the class weather data each d
AfilCa [17]

Answer:

B

Explanation:

You would have rain. You would have clouds, precipitation, and strong winds.

4 0
3 years ago
Read 2 more answers
As the temperature decreases, the atoms lose energy. The atoms begin to move slower. They are held together by attractive forces
bogdanovich [222]

gas to liquid is the answer

8 0
3 years ago
Read 2 more answers
If momentum is conserved, what happened to velocity when mass changes?
kifflom [539]

Explanation:

The momentum of an object is given in terms of its mass and its velocity. The law of conservation of momentum says that the net momentum of a system remains conserved for an isolated system.

Momentum is given by :

p = m × v

If p is conserved, velocity is inversely proportional to the mass of an object. When mass changes, velocity also changes but inversely.

5 0
3 years ago
When Coach Kwan notices that a player is getting tired, she takes out the tired player and substitutes a fresh player.
Wittaler [7]
The answer is a




If you can’t get the correct answer, this is on edg


5 0
2 years ago
Read 2 more answers
The cannon on a battleship can fire a shell a maximum distance of 26.0 km.
Alla [95]
It is possible to demonstrate that the maximum distance occurs when the angle at which the projectile is fired is \theta = 45^{\circ}.
In fact, the laws of motions on both x- and y- directions are
S_x(t)= v_0 cos \theta t
S_y(t)= v_0 \sin \theta t -  \frac{1}{2} gt^2
From the second equation, we get the time t at which the projectile hits the ground, by requiring S_y(t)=0, and we get:
t= \frac{2 v_0 \sin \theta}{g}
And inserting this value into Sx(t), we find
S_x(t) = 2  \frac{v_0^2}{g}  \sin \theta \cos \theta= \frac{v_0^2}{g} \sin (2\theta)
And this value is maximum when \theta=45^{\circ}, so this is the angle at which the projectile reaches its maximum distance.

So now we can take again the law of motion on the x-axis
S_x(t)=  \frac{v_0^2}{g} \sin (2\theta)
And by using S_x = 26 km=26000 m, we find the value of the initial velocity v0:
v_0 =  \sqrt{ \frac{S_x g}{\sin (2\theta)} } = \sqrt{ \frac{(26000m)(9.81m/s^2)}{\sin (2\cdot 45^{\circ})} } =505 m/s
8 0
3 years ago
Other questions:
  • An external resistor with resistance R is connected to a battery that has emf ε and internal resistance r. Let P be the electric
    5·1 answer
  • When you push on the sides of a balloon, the gas inside is ___________.
    7·1 answer
  • A sound wave traveling downward with a speed of about 4,000 m/s suddenly slows to 1,500 m/s not far below the Earth’s surface.
    12·2 answers
  • Based on the solubility chart, which of the listed salts is the most soluble at 25 °C?
    11·2 answers
  • Convert 225oC into Fahrenheit.
    8·1 answer
  • A) An electron is moving with a speed of 3.5 x105 m/s when it encounters a magnetic field of 0.60T. The direction of the magneti
    13·1 answer
  • A meter stick is held vertically above your hand, with the lower end between your thumb and first finger. On seeing the meter st
    13·1 answer
  • What is the resultant force of 500g on abject accelerating at 5m/s2
    5·1 answer
  • A car travels 480 km in 12 hr. what is its velocity
    14·2 answers
  • Can someone pls help with the last one
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!