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
Nataly [62]
3 years ago
11

On my science test, there is a bonus question that I want to get right. Why would it be a bad idea to skydive on the moon? Hint:

It has nothing to do with gravity. Please get back to me about it.
Physics
1 answer:
eduard3 years ago
7 0

Answer:

Because there is no air resistance

Explanation:

When an object falls on Earth, there are essentially two forces acting on it:

- The force of gravity, downward, equal to the weight of the object:

W=mg

where m is the mass and g the acceleration due to gravity

- The air resistance, F, which acts upward, and whose magnitude is generally proportional to v, the speed of the object

When the object starts its fall, its initial speed is zero: v = 0, so the air resistance is also zero: F=0, and the object accelerates downward due to gravity.

However, as it accelerates downward, its speed increases, and so does the air resistance F. However, F is upward, opposite to the direction of motion, therefore it reduces the net acceleration of the object; at a certain point, the magnitude of the air resistance will become equal to the weight, so that

mg = F

and at that point, the net acceleration of the object will become zero: this means that the object will continue its fall at a constant velocity, called terminal velocity.

On the Moon instead, there is no air resistance: this means that for an object falling down, the speed keeps increasing due to the effect of gravity, and it will never reach a terminal value: therefore, the final velocity at the impact will be much higher than on the Earth, if we assume the two objects have been dropped from a very high altitude from the surface.

You might be interested in
A ball rolls over the edge of a platform with only a horizontal velocity. The height of the platform is 1.6 m and the horizontal
Sever21 [200]

Explanation:

the answer is in the above image

3 0
3 years ago
A loop of wire is placed in a uniform magnetic field. For what orientation of the loop is the magnetic flux a maximum? For what
andreyandreev [35.5K]

Answer:

The flux is calculated as φ=BAcosθ. The flux is thereforemaximum when the magnetic field vector is perpendicular to theplane of the loop. We may also deduce that the flux is zero whenthere is no component of the magnetic field that is perpendicularto the loop.

when angle is zero then flux is maximium because when angle zerocos is maximium

8 0
3 years ago
A ceiling fan has three blades. The moment of inertia of a blade is 0.2kgm^2. The net torque exerted on fan blades is 8Nm. Find
olchik [2.2K]

Answer:

(A) the angular acceleration of the blades is 13.33 m/s.

Explanation:

Given;

moment of inertia of a blade, I = 0.2 kgm²

net torque exerted on fan blades, ∑τ =  8Nm

Torque is given as product of moment of inertia and angular acceleration;

τ = Iα

where;

α is the angular acceleration

Since there are three blades of the ceiling fan, the net torque is given as;

∑τ = (3I)α

∑τ = 3Iα

α = ∑τ / 3I

α = (8) / (3 x 0.2)

α = 13.33 m/s

Therefore, the angular acceleration of the blades is 13.33 m/s.

8 0
2 years ago
How large is the area of water found on Mars?
ehidna [41]

More than five million cubic kilometers of ice have been identified.


8 0
3 years ago
Read 2 more answers
Spherical mirror is a​
madam [21]

Answer:

Spherical mirror is a mirror with a curved reflecting surface.

5 0
2 years ago
Other questions:
  • In the unsaturated zone, the pores of the soil are totally filled with water. T or F
    9·1 answer
  • What did it mean if something was in blue glass?
    9·1 answer
  • a 2kg object is moving horizontally with a speed of 4 m/s.how much net force is required to keep the object moving at this speed
    10·1 answer
  • What is common to all fossil fuels?
    15·2 answers
  • You find it hard to ride faster on your bike because a force is pushing back on you. What type of force is slowing you down?
    15·2 answers
  • do clouds and wind appear to follow the same patterns? Can you find any patterns in the direction that they move?
    7·1 answer
  • An 80-kg firefighter slides down a fire pole. After 1.3 seconds of sliding, the firefighter is sliding at a velocity of 6.5 m/s,
    11·1 answer
  • a garden hose of diameter 2cm is used to fill 1000 litre container in a time of 10 minutes.calculate the flow rate in cubic cm p
    6·1 answer
  • When the program reads the 0 and 1's it is called _______________________.
    7·1 answer
  • Mary finishes a marathon at a speed of 2 m/s. If her
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!