Answer:
Magnitude of the impulse = 75 Ns
Explanation:
Given:
Force exerts = 1500 N
Time = 50 ms = 0.05 s
Find:
Magnitude of the impulse
Computation:
Magnitude of the impulse = Force x Time
Magnitude of the impulse = 75 Ns
M=400/1000=0.4kg h=17.3 g=9.8m/s2 P.E=mgh P.E=0.4(9.8)(17.3) P.E=67.8J
Explanation:
The given number is 1.30x10-5. We need to convert it into scientific notation. We know that, any no can be written in this form as follows :
...(1)
m is any real no and n is any integer
If we compare the given no with equation (1), then, we found that m = 1.3 and n = -5.
It means that the given no is already in scientific notation. It can be written as :
Answer: 20 grams
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed by liquid = 5.23 kcal = 5230 cal (1kcal=1000cal)
C = heat capacity of liquid =
Initial temperature of the liquid = = 101 K
Final temperature of the liquid = = 225 K
Change in temperature ,
Putting in the values, we get:
Thus the sample of liquid in grams is 20
Answer;
-The white light shines forward and to both sides (225 Degrees) and is required on all power-driven vessels. A masthead light must be displayed by all vessels when under engine power. The absence of this light indicates a sailboat under sail.
Explanation;
-Masthead light; Means a white light placed over the fore and aft center-line of the vessel showing an unbroken light over an arc of the horizon of 225 degrees and so fixed to show the light from right ahead to 22.5 degrees abaft of the beam on either side of the vessel, except that on a vessel of less than 12 meters (39'4") in length the masthead light shall be placed as nearly as practical to the fore and aft center-line of the vessel.