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
ICE Princess25 [194]
2 years ago
8

THE ANSWER!!! Please

Physics
1 answer:
Anuta_ua [19.1K]2 years ago
5 0

Answer:

I think -7 N. Netforce is 3N-10N= -7N

Explanation:

You might be interested in
A block measure 10 cm by 10 cm by 5 cm , what is it’s volume
Lina20 [59]
I think it is 500 cm. Hope I helped!
5 0
3 years ago
If an object accelerates from rest, with a constant acceleration of 5.4 m/s2, what will its velocity be after 28s?
aleksklad [387]
Vf = Vi + at
Vf = 0 + 5.4•28
= 151.2m/s..
not sure if its right
6 0
3 years ago
A hot cube of iron was heated up using 1500 J of thermal energy and was placed in a beaker of water. Before it was heated, the i
Mariana [72]

Answer:

451.13 J/kg.°C

Explanation:

Applying,

Q = cm(t₂-t₁)............... Equation 1

Where Q = Heat, c = specific heat capacity of iron, m = mass of iron, t₂= Final temperature, t₁ = initial temperature.

Make c the subject of the equation

c = Q/m(t₂-t₁).............. Equation 2

From the question,

Given: Q = 1500 J, m = 133 g = 0.113 kg, t₁ = 20 °C, t₂ = 45 °C

Substitute these values into equation 2

c = 1500/[0.133(45-20)]

c = 1500/(0.133×25)

c = 1500/3.325

c = 451.13 J/kg.°C

4 0
3 years ago
How does an environmental change (ex. hurricane, drought, etc.) affect the organisms that are adapted to the environment before
rjkz [21]
The environmental changes can will negatively affect different organisms differently, for example some organisms might die due to failure of the organisms to adapt to the new changes. Some organisms will be forced to migrate in order to counter these changes, this may lead to this organisms leaving their old living routine and adapt to the new methods of living, this may lead to evolution caused by new environment.  
3 0
3 years ago
Under certain circumstances, potassium ions (K+) in a cell will move across the cell membrane from the inside to the outside. Th
choli [55]

Answer:

1.368\times 10^{-20}\ J

Explanation:

q = Charge in the potassium ion = 19e-18e

e = Charge of electron = 1.6\times 10^{-19}\ C

V_2-V_1 = Change in potential = 0-(-85.5\times 10^{-3})

Change in electric potential is given by

E=q(V_2-V_1)\\\Rightarrow E=(19e-18e)(0-(-85.5\times 10^{-3})\\\Rightarrow E=1.6\times 10^{-19}\times 85.5\times 10^{-3}\\\Rightarrow E=1.368\times 10^{-20}\ J

The energy is 1.368\times 10^{-20}\ J

3 0
3 years ago
Other questions:
  • Which of these actions is an example of chemical weathering? A. Freezing water widens the cracks in rocks B. plant roots force t
    12·1 answer
  • If you wanted the pitch of a horn to drop relative to an observer, which way would you move the horn, relative to where that obs
    6·2 answers
  • The dimensions of a room are 16.40 m long, 4.5 m wide and 3.26 m high. What is the volume of the room in cubic meters? Express y
    5·1 answer
  • What are two real life examples that resemble peristalsis?
    9·1 answer
  • show answer No Attempt Treated as a projectile, what is the maximum range, in meters, obtainable by a person if he or she has a
    11·2 answers
  • A uniform disk of mass m = 2.4 kg and radius R = 25 cm can rotate about an axle through its center. Four forces are acting on it
    11·1 answer
  • Two projectiles are launched with the same initial speed from the same location, one at a 30° angle and the other at a 60° angle
    8·1 answer
  • The total resistance of a series circuit is 15.0 ohms what is the second resistance of the first resistance is 10.0 ohms?
    10·1 answer
  • Friction is a force in which two objects __________. A. Collide and move in one direction B. Are repelled from each other C. Sli
    5·1 answer
  • A 1-kg block is lifted vertically 1 m at constant speed by a boy. The work done by the boy is about:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!