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
Mnenie [13.5K]
3 years ago
9

if the force moving an object points at least partially in the positive direction of the objects motion the work is considered t

o be
Physics
1 answer:
jasenka [17]3 years ago
8 0

Answer:

the work done can be positive or negative  

Explanation:

You might be interested in
The moon has a mass of 7.35x1022 kg and is a lot farther away than is shown in textbooks. The mass of the
anyanavicka [17]

Answer:

F=1.98\times 10^{20}\ N

Explanation:

Given that,

The mass of a Moon, M_m=7.35\times 10^{22}\ kg

The mass of the Earth, M_e=5.98\times 10^{24}\ kg

The moon's mean orbit distance around the earth is, r=3.84\times 10^8\ m

We need to find the gravitational force exerted on the moon by the Earth.

The formula of gravitational force is given by :

F=G\dfrac{M_mM_e}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{7.35\times 10^{22}\times 5.98\times 10^{24}}{(3.84\times 10^8)^2}\\\\F=1.98\times 10^{20}\ N

So, the required force is 1.98\times 10^{20}\ N.

3 0
3 years ago
O((>ω< ))oo((>ω< ))oo((>ω< ))oo((>ω< ))oo((>ω< ))o
Paladinen [302]

Answer:

(•_•)

Explanation:

7 0
3 years ago
Identify the normal force on the shopping cart after 75 newtons of groceries are added to the cart
Anna71 [15]
If the shopping cart is parallel to the ground, the weight is acting vertically downward, then force is equal to weight. The normal force will be acting perpendicular to the ground,and acting upward opposite of the weight.
3 0
3 years ago
Read 2 more answers
PLEASE ANSWER ASAP BEFORE MY TEACHER AND MY MOM KILLES ME PLEASE ASAP
alisha [4.7K]

Answer:

There are 4 liquids in this experiment and red is the least dense of all of them so it should float on top, which it is doing.

The red that you see at the bottom is neither liquid nor is it a part of the experiment.

It is simply the <u>color of the bottom of the container</u> that the experiment was conducted in.

4 0
3 years ago
Read 2 more answers
Two children of about the same weight are playing at the playground. They both climb up to the top of a small tower. One slides
olya-2409 [2.1K]

Answer:

D

Explanation:

D) The overall work done by gravity is zero  

This statement is correct .

If m be the mass of each of the children and h be the height of tower

work done by gravity on the boys in going up = - mgh

it is so because force applied by gravity = mg downwards and displacement

is upwards

work done will be negative = - mgh

Work done by gravity on boys when they come down = + mgh because both force and displacement are downwards .

Hence total work done = - mgh + mgh = 0.

The children will have same kinetic energy as the inclined surface is friction-less so no energy will be dissipated hence addition of energy to boys in both the cases will be same.

4 0
4 years ago
Other questions:
  • A satellite is in elliptical orbit with a period of 7.20 104 s about a planet of mass 7.00 1024 kg. At aphelion, at radius 5.1 1
    15·1 answer
  • Sound Waves (1 point)
    15·2 answers
  • Larry lightweight stands on a pair of bathroom scales each scale reads 300 N what is larry's mass
    11·2 answers
  • A person behind a moving siren will interpret the frequency of the siren as being
    8·2 answers
  • What might cause convection currents in a hot spring?
    15·1 answer
  • Two students measure the time constant of an RC circuit. The first student charges the capacitor using a 12 V battery, then lets
    6·1 answer
  • Two equal forces act on two different objects, one of which has a mass ten times as large as the other. Will the more massive ob
    9·1 answer
  • 2 objects have a total momentum of 400kg m/s, they collide. Object A’s mass is5kg &amp; object B’s mass is 11kg. After the colli
    11·1 answer
  • I need help ASAP please.....
    14·1 answer
  • An archer shoots an arrow at an 85.0 m distant target; the bulls eye of the target is at same height as the release height of th
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!