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
LekaFEV [45]
3 years ago
14

An object weighs 100 newtons on earth.What is its weight on the moon?

Physics
2 answers:
k0ka [10]3 years ago
7 0

Answer:

20 N

Explanation:

Consider that earth's acceleration due to gravity is approximately 9.81 m/s^2. Also consider that the moon's acceleration due to gravity is about 1.62 m/s^2. Using these two values, we can easily find the weight of the object on the moon, given that the object weighs 100 N, and that F = ma.

First, let's break it up.

100/9.81 =

10.193679918450561 kg

10.193679918450561*1.62 =

16.513761467889908 N

≈ 20 N (with one significant digit, since that is the least amount of sig figs in the problem)

Pachacha [2.7K]3 years ago
4 0

Answer:

a) The gravitational acceleration at the surface of the Moon is g moon=1.67 m/s  

2

The ratio of weights (for a given mass ) is the ratio of g-values, so  

W  

moon

​  

=(100N)(1.67/9.8)=17N.

(b) For the force on that  object caused by Earth's gravity to equal 17 N, then the free fall acceleration at its location must be  

ag

​  =1.67m/s  

2

 . Thus , .

ag

= r  2

Gm

E

⇒  

a  

g

Gm  

=1.5×10  

7

m

So the object would need to be a distance of r/R  

E

​  

=2.4 "radii" from Earth's center.

You might be interested in
A truck going 15 km􏰀h has a head-on collision with a small car going 30 km􏰀h. Which statement best describes the situation
zlopas [31]

1. e) None of the above is necessarily true.

2.d) Without knowing the mass of the boat and the sack, we cannot tell.

5 0
3 years ago
A 43 kg girl and a 7.1 kg sled are on the frictionless ice of a frozen lake, 12 m apart but connected by a rope of negligible ma
trapecia [35]

Answer:

(a) Girl acceleration =  0.15 m/s², (b) Sled acceleration =  0.93 m/s²

Explanation:

Given:

M1=Mass of girl = 43 Kg

M2= mass of Sled = 7.1 Kg

Force F= 6.6 N

To Find (a) a1 = girl acceleration  (b) a2 = sled acceleration

Solution:

F1 = F2 = F   (Newton's 3rd Law)

F=ma (Newton's 2nd Law)

(a) F = M1a1

⇒a1 = F/M1 = 6.6 N / 43 Kg = 0.15 m/s²

(b) a2 = F / M2 = 6.6 N / 7.1 Kg =  0.93 m/s²

6 0
3 years ago
When the valve between the 2.00-L bulb, in which the gas pressure is 2.00 atm, and the 3.00-L bulb, in which the gas pressure is
padilas [110]

Answer:

P_{C} = 3.2\, atm

Explanation:

Let assume that gases inside bulbs behave as an ideal gas and have the same temperature. Then, conditions of gases before and after valve opened are now modelled:

Bulb A (2 L, 2 atm) - Before opening:

P_{A} \cdot V_{A} = n_{A} \cdot R_{u} \cdot T

Bulb B (3 L, 4 atm) - Before opening:

P_{B} \cdot V_{B} = n_{B} \cdot R_{u} \cdot T

Bulbs A & B (5 L) - After opening:

P_{C} \cdot (V_{A} + V_{B}) = (n_{A} + n_{B})\cdot R_{u} \cdot T

After some algebraic manipulation, a formula for final pressure is derived:

P_{C} = \frac{P_{A}\cdot V_{A} + P_{B}\cdot V_{B}}{V_{A}+V_{B}}

And final pressure is obtained:

P_{C} = \frac{(2\,atm)\cdot (2\,L)+(4\,atm)\cdot(3\,L)}{5\,L}

P_{C} = 3.2\, atm

5 0
3 years ago
Q.01 When charging a secondary cell, energy is stored within a dielectric material using an electric field. True or False
Nitella [24]

True, when charging a secondary cell, energy can be stored within a dielectric material using an electric field.

<h3>Relationship between dielectric material and electric field</h3>

The electric field in a capacitor separates the negative and positive charges in the dielectric material, this causes an attractive force between each plate and the dielectric.

The dielectric material can store electric energy due to its polarization in the presence of external electric field, which causes the positive charge to store on one electrode and negative charge on the other.

Thus, when charging a secondary cell, energy can be stored within a dielectric material using an electric field.

Learn more about dielectric material here: brainly.com/question/17090590

4 0
3 years ago
Ten seconds after starting from rest, a freely-falling object will have a speed of about ________________________
yaroslaw [1]

Answer:

100 m/s

Explanation:

Speed increases at a rate of 10 m/s (actually 9.8 m/s) every second. Thus after 10 seconds, the speed is 10 x 10 = 100 m/s.

6 0
3 years ago
Other questions:
  • A scientist is creating a new synthetic material. The material’s density is 6.1 g/cm3. Which sentences describe how the scientis
    14·2 answers
  • The light from the Sun heats a metal surface
    9·1 answer
  • After tasting the salt in the ocean water on a visit to the beach one day, you recall from class that the salt is the __________
    13·2 answers
  • Problem 3: A basketball player is running at 4.75 m/s toward the basket when he jumps into the air to dunk the ball. He maintain
    6·1 answer
  • An object with a mass of 20 kg has a net force of 80 n acting on it. what is the acceleration of the object?
    11·1 answer
  • Which scale is being described? Water freezes at 32 . Water freezes at 0 . Water freezes at 273
    14·2 answers
  • A yet-to-be-built spacecraft starts from Earth moving at constant speed to the yet-tobe-discovered planet Retah, which is 20 lig
    15·1 answer
  • Change into60f into c​
    15·1 answer
  • A series L-R-C circuit consists of a 226 Ω resistor, a 27.4 mH inductor, a 11.55 µF capacitor, and an AC source of amplitude 15
    9·1 answer
  • Darwin observed fossils of glyptodonts, which are now extinct. Living armadillos are the only animals remaining on Earth that ar
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!