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
solmaris [256]
3 years ago
13

You have just landed on planet x. you take out a 250-g ball, release it from rest from a height of 12.0 m, and measure that it t

akes 2.4 s to reach the ground. you can ignore any force on the ball from the atmosphere of the planet. how much does the 250-g ball weigh on the surface of planet x? 104.16667 incorrect: your answer is incorrect. n
Physics
2 answers:
nekit [7.7K]3 years ago
7 0

For the first step, since we know the time it takes to fall 12 meters, 
we can calculate the acceleration of gravity on Planet-X. 

           Falling distance = (1/2) (gravity) (time²)

                            (12 m)  =  (1/2) (gravity) (2.4 seconds)²

                                        =   (1/2 gravity)  (5.76 seconds²)

Divide each side by  (5.76 s²) :

                       1/2 gravity  =  (12 m) / (5.76 s²)

                             gravity  =  (24 m) / (5.76 s²)

                           Gravity  =  4.17 m/s²     (42.5% of Earth gravity)

Now that we know the acceleration  of gravity on Planet-X,
we can calculate the weight of the ball, (or of any mass).

           Weight of any mass = (mass) x (gravity)

For the ball,     Weight = (0.250 kg) x (4.17 m/s²)

                                    =   1.042 Newton

(The same 250-gram ball would weigh 2.45 newtons on Earth.)
DENIUS [597]3 years ago
5 0
I believe your answer is off by a couple of decimal points. The answer is approximately 1.041 N
You might be interested in
Plane a travels at 900km/h and plane b travels at 250/5.which plane travels faster
vesna_86 [32]

Explanation:

We have,

Speed of plane a is 900 km/h

Plane b is moving at a rate of \dfrac{250\ km}{5\ h}=50\ km/h

It is required to find which plane is faster. To find which plane is faster, we need to compare their speeds.

Speed of a plane a is 900 km/h and that of plane b is 50 km/h. So, we can say that plane a is moving faster.

5 0
2 years ago
In which situation would an object weigh the LEAST? (assume all the objects have the same mass)
inessss [21]

Answer:

An object on the moon would weigh the LEAST among these. So correct answer is B.

Explanation:

  • Weight of an object on any place is given by:

W = Mass * Acceleration due to gravity(g)

  • It means when masses of different objects those are in different places are same, the weight of  those objects depends upon the 'g' of that particular place.
  • As we know, acceleration due to gravity on surface of moon (g') is 6 times weaker than the acceleration on surface of earth (g), which is due to the large M/R^2 of the earth than the moon.

i.e. g' = g/6 so W' = W/6

  • And in the space between the two, the object is weightless.
8 0
2 years ago
Read 2 more answers
A 1.50 kg rock is thrown up into the air from ground level, reaches a maximum height of 7.00 m, then returns to the ground. Calc
Minchanka [31]

Answer:

17.565 kgm/s

Explanation:

Momentum = mass × velocity

I = mv..................... Equation 1

But we can calculate the value of v  using the equation of motion under gravity.

v² =  u²+2gs............. Equation 2

Where u = initial velocity, s = maximum heigth, g = acceleration due to gravity.

Given: u = 0 m/s (at the maximum heigth), s = 7.0 m.

Constant: g = 9.8 m/s²

Substitute these values into equation 2

v² = 0²+ 2×7×9.8

v² = 137.2

v = √137.2

v = 11.71 m/s.

Also given: m = 1.50 kg

substitute these values into equation 1

Therefore,

I = 1.5×11.71

I = 17.565 kgm/s

3 0
2 years ago
Choose ne
Tju [1.3M]

Answer:

diamond

Explanation:

im not 100% sure so my bad if im wrong

6 0
2 years ago
The acceleration of an object is due to the net force on the object and the object's
Marat540 [252]

Answer:

blah balh blah blah blah 4 time s for 6 then add 3

8 0
3 years ago
Other questions:
  • ______ is the percent ionization of a weak acid in water increases as the concentration of acid decreases.
    6·1 answer
  • Which letter below represents a nucleotide?<br> A.<br> D.<br> B.<br> C
    5·2 answers
  • 2. What happens when multiple forces act on an object? (Points : 1)
    5·2 answers
  • Calculate the internal energy (in J) of 86 mg of helium at a temperature of 0°C.
    7·1 answer
  • A pilot must fly his plane due north to reach his destination. The plane can fly at 300 km/h in still air. A wind is blowing out
    13·1 answer
  • The message refers to which of the following?
    5·1 answer
  • A watering can is most likely measured in which metric unit
    7·1 answer
  • Help me I got this photo please
    9·1 answer
  • Mass, volume and density are all properties of
    15·2 answers
  • 1. What happens when like magnetic poles are brought close together?​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!