Answer:
19696 J or 19700 J
Explanation:
COMPONENT OF FORCE IN DIRECTION OF DISPLACEMENT IS
F cosФ = 200 cos 10° = 196.96 N
work = component of force in direction of displacement × displacement
= 196.96 × 100
= 19696 J
= 19700 J
Other families might be more private, so a girl might not know exactly what to say or whom to tell. But this news needs to be shared, at least with one grown-up in the family. You might just pull the person aside and say it clearly, like this: "I got my first period today. Do you think you can help me get some supplies?"
Answer:
Kinetic energy of mass A = 20 J
Kinetic energy of mass B = 40 J
Explanation:
Lets take final speed of mass A = v
The final speed of mass B = v'
mass of A= m
mass of B = m'
m = 2 m'
There is no any external force so the linear momentum will be conserve.
Pi = pf
0 = m v + m ' v'
0 = 2 m ' v +m ' v'
v ' = - 2 v
Now from energy conservation
1/2 k x²=1/2 m v² + 1/2 m' v'²
60 = 1/2 m v² + 1/2 m' v'²
m v² + m' v'² = 120
2 m ' (-v'/2)² + m' v'² = 120
m ' v'²/2 + m' v'² = 120
m' v '² = 80
m =2 m' and v ' = - 2 v
So
m/2 ( 4 v²) = 80
m v ²=40
So the kinetic energy of mass A= 1/2 m v² = 20 J
Kinetic energy of mass B = 1/2 m' v'² = 40 J
To solve the problem, apply the concepts related to constructive and destructive interference. For this purpose, we will start by defining the distance from the dark fringe from the central maximum in terms of the slit separation, the number of fringe the wavelength and the distance of the screen to the slit. Mathematically this is,
Here,
d = Slit separation
n = Number of fringe
= Distance of the dark fringe from the central maximum
D = Distance of the screen to the slit
= Wavelength
Our values are given as,
Replacing,
Therefore the screen is located from the slit to 9.61m
Answer:
the motorcycle travels 522 miles in 18 seconds Explanation: 29 x 18 is 522 I'm pretty sure that's what it was asking but I don't know
