Revolution means orbiting around another body.
<span>A year is the time for a planet to complete one orbit around the Sun. 100% sure
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The air mass that originates over land in Canada is most likely to be cold and dry
<u>Explanation:</u>
- The air masses overland from a continent is usually Dry. The air masses are formed by the uneven warming and cooling of the surface of the earth by the sun gives rise to air masses.
- Canada is affected by the five air masses they are Continental Arctic, Maritime Arctic, Maritime polar, Maritime tropical, and Continental Tropic.
- As Canada is most likely affected by the Continental Arctic the air masses are cold and dry.
The skateboard that has the greatest impulse is Skateboard C (Impulse = 25.74 Ns)
From the question,
We are to determine which skateboard has the greatest impulse. To do this, we will calculate the impulse of each skate board.
Impulse can be calculated by using the formula
I = Ft
Where I is the impulse
F is the force
and t is the time
Force = 33 N
Time = 0. 12 s
∴ Impulse = 33 × 0.12
Impulse = 3.96 Ns
Force = 33 N
Time = 0. 57 s
∴ Impulse = 33 × 0.57
Impulse = 18.81 Ns
Force = 33 N
Time = 0. 78 s
∴ Impulse = 33 × 0.78
Impulse = 25.74 Ns
Hence, the skateboard that has the greatest impulse is Skateboard C (Impulse = 25.74 Ns)
Learn more here: brainly.com/question/21840495
Answer:
The correct option is;
B. Subtract vectors A from C; 
= 12 N
Explanation:
The given parameters are;
The weight of the dresser = 250 N
The force applied by the man = 20 N = C
The frictional force provided by the carpet = 8 N = The component of the weight resisting motion = A
Therefore, the net force tending to put the dresser in motion, , is given as follows;
= The force applied by the man, C - The frictional force provided by the carpet which is the component of the weight resisting motion, A
= C - A = 20 N - 8 N = 12 N
= 12 N
The resulting net force, = 12 N.
Answer:
After the colision, the stationary electron's momentum is given as:
P = 2.7328 x 10^(-25) kg m/s
The direction of momentum is the same as the direction of velocity of the electron.
Explanation:
In an Isolated system, when an object moving at some velocity v collides head on with a stationary object of equal mass. There velocities are exchanged.
This means that the first electron will become stationary and the electron which was stationary initially will start moving at a velocity of 3*10^(5)m/s in the same direction as the first electron.
Post collision momentum of the stationary electron:
V = 3 x 10^5 m/s
m = 9.1093 x 10^(-31) kg
Momentum = P = mV = 9.1093 x 10^(-31) x 3 x 10^5
P = 2.7328 x 10^(-25) kg m/s
The direction of momentum is the same as the velocity of the electron.
