This is true. There is a downward force on the table that stabilizes the rock to stay there.
Answer:four times
Explanation:
Given
mass of both cars A and B are same suppose m
but velocity of car B is same as of car A
Suppose velocity of car A is u
Velocity of car B is 2 u
A constant force is applied on both the cars such that they come to rest by travelling certain distance
using to find the distance traveled
where, v=final velocity
u=initial velocity
a=acceleration(offered by force)
s=displacement
final velocity is zero
For car A


For car B


divide 1 and 2 we get

thus 
distance traveled by car B is four time of car A
C. A child can pass through the stages in any order.
i dont know the answer of your question correctly
Answer:
60 ohms
Explanation:
From Ohm's Law:
V = IR
Where V = 120volts
I = 2A
R = ?
Note that R,V and I represents resistance, voltage and current respectively.
Substituting the above values into the formula.
V = IR
120v = 2×R
120= 2R
Making R the subject
R =120/2
R = 60 ohms
Hence the resistance of the toaster will be 60 ohms.