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
Black_prince [1.1K]
3 years ago
13

Objects are lighter on the moon than they are on earth. if an object A weighs 25lbs on the Moon and another object B weighs 25 N

ewtons on earth, which has more mass?
a. Object a
b. Object b
c. Same mass
d. Other
Physics
1 answer:
solong [7]3 years ago
5 0

Answer:

a. Object A

Explanation:

The mass of an object implies the quantity of matter in it, while the weight is the amount of gravitational force applied on an object.

The object A has a mass of 25 lbs, but object B on the earth has a weight, W, of 25 N.

So that,

For object A on the moon, mass = 25 lbs

For object B on the earth, W = 25 N,

W = m x g

25 = m x 10                (g = 10 m/s^{2})

m = \frac{25}{10}

   = 2.5 lbs

Mass of object B is 2.5 lbs.

Therefore, the mass of the object A is more than that of B.

You might be interested in
Two trucks have the same mass. Which truck will have a greater amount of kinetic energy? b. The truck with less mass d. The truc
tatiyna

Answer:

c. The truck with greater speed

Explanation:

Energy can be defined as the ability (capacity) to do work. The two (2) main types of energy are;

a. Gravitational potential energy (GPE): it is an energy possessed by an object or body due to its position above the earth.

b. Kinetic energy (KE): it is an energy possessed by an object or body due to its motion.

Mathematically, kinetic energy is given by the formula;

K.E = \frac{1}{2}MV^{2}

Where;

K.E represents kinetic energy measured in Joules.

M represents mass measured in kilograms.

V represents speed or velocity measured in metres per seconds square.

From the above formula, we can deduce that the kinetic energy of an object is directly proportional to the square of the value of its velocity or speed.

Hence, the truck with greater speed would have a greater amount of kinetic energy.

3 0
3 years ago
Distance Using Hubble's Law II.Find the percent difference (% = |A-O|/A × 100) between the actual (A) distance values and calcul
wlad13 [49]

Answer:

Explanation:

Let us first calculate for Virgo

A= d_{virgo} = 17;M_{pc}, V_{virgo} = 1200 km/s,


Using Hubble's law

v = H_{0}D For Virgo

V_{virgo} = H_{0}D_{virgo}

O = D_{virgo} = \frac{v_{virgo}}{H_{0}} = \frac{1200 km/s}{70 km/s/Mpc}= 17.143 Mpc


Percentage difference for the Virgo

\% = \frac{|A-O|}{A}\times 100 = \frac{|17 Mpc-17.143 Mpc|}{17 Mpc}\times 100 = 0.84 \%


Now for calculate for Corona Borealis

A= d_{Corona Borealis}  = 310 Mpc, v_{Corona Borealis}  = 22000 km/s,


Using Hubble's law

v = H_{0}D For Corona Borealis

v_{Corona Borealis } = H_{0}D_{Corona Borealis }
\\O = D_{Corona Borealis } = \frac{v_{Corona Borealis }}{H_{0}} = \frac{22000 km/s}{70 km/s/Mpc}= 314.286 Mpc


Percentage difference for the Virgo

\% = \frac{|A-O|}{A}\times 100 = \frac{|310 Mpc-314.286 Mpc|}{310 Mpc}\times 100 = 1.3825 \%


So clearly  Hubble's law is more accurate for the closer objects

3 0
4 years ago
What was the main view how the world worked geologically prior to the 1960s? It was generally believed that continents and ocean
attashe74 [19]

Answer:

It was generally believed that mountains were produced by vertical forces

Explanation:

                   The main view of the world worked geologically prior to the 1960s was that the mountains were formed by the vertical forces of nature.

                    The early people prior to 1960s believed in many different natural phenomenons and they give their own reasons for their occurrence. But later many researchers and geophysicists studied the formation of the earth and came with possible answers to these questions.

Thus the answer is  

" It was generally believed that mountains were produced by vertical forces."

3 0
3 years ago
In which layer of the Sun does hydrogen fusion occur?
nataly862011 [7]
Answer: the core. Hope it helps!
6 0
4 years ago
Read 2 more answers
Which two labeled points on the fig are out of phase by 180° ?
GREYUIT [131]
You can use the points of answer:

B and F
5 0
3 years ago
Other questions:
  • How do weathering and erosion differ?
    6·2 answers
  • A sample of a substance burns more rapidly in pure oxygen than in air. which factor is most responsible for this high rate of re
    6·1 answer
  • Which describes an object in projectile motion? Select three options.
    8·2 answers
  • In which of the following cases is work being done on an object? Question 2 options: Pushing against a locked door Carrying a bo
    12·1 answer
  • For phyics again , pls !!!
    12·1 answer
  • You lift an object a distance of 1 meter off the ground. To lift the same object a distance of 2 meters off the ground, you woul
    7·1 answer
  • A 10.0 kg mass is moving with constant speed of 10.0 m/s.
    10·1 answer
  • EVERYONE BE AWARE IF YOU GET SENT SOMETHING LIKE THIS (Answer is in the photo. I can only upload it to a file hosting service. l
    7·1 answer
  • Pls help<br><br> What is the frequency range of UV light? Of infrared light?
    14·1 answer
  • Equation for distance
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!