Answer:
<h2>100 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 5 × 20
We have the final answer as
<h3>100 N</h3>
Hope this helps you
The ground is a foundation for many of the things of our lives. It is the foundation for the buildings in our life such as our houses, schools, work, hospital, and so on. It is the foundation for our lives that we often take for granted and it nurtured the trees and nature around us.
Answer: Sound has vibrations of molecules and it spread through the air
Explanation: Pretty much what this means you need molecules to produce sounds and in space there isn't any. On the other hand light is a electromagnetic waves and those waves do not need a medium to travel through
Answer:
All of the choices are correct
Explanation:
The power dissipated in a single resistor connected to a battery is given by:
where
V is the voltage
I is the current
R is the resistance
Let's analyze each case:
A) Doubling the voltage (V'=2V) and reducing the current by a factor of 2 (I'=I/2). The new power dissipated is:
--> the power is unchanged
B) Doubling the voltage (V'=2V) and increasing the resistance by a factor of 4 (R'=4R). The new power dissipated is:
--> the power is unchanged
C) Doubling the current (I'=2I) and reducing the resistance by a factor of four (R'=R/4). The new power dissipated is:
--> the power is unchanged
Answer:
Wfr=-496.4 J
Explanation:
The total work of the motion is describe
x=5.0m
v=9.0 m/s
m=58.4kg
The Work of the friction can be find without know the coefficient however knowing the total work and the work done by the gravity down a ramp can find the work of the friction