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Paraphin [41]
3 years ago
8

Which practice reduces the risk of a boating emergency?

Physics
1 answer:
ruslelena [56]3 years ago
5 0
<span>It is very important  to recognize and to act upon emergency warning signs or to minimize the effects of the boating emergency if it does occur. There are several practices that reduce the risk of boating emergency:
1. P</span><span>ay close attention to other boats and potential hazards
2. Maintain a safe speed
3. All passengers always wear life jackets or PFD

</span>
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beks73 [17]
1) calcium sulfate
2) potassium carbonate
3) Copper Nitrate
4) Ammonium Chloride
5) Magnesium Nitrate
6) Potassium Phosphate
7) Lithium Chromate
8) Magnesium Hydroxide
9) Aluminum Phosphate
10) potassium Nitrate
11) Calcium Sulfite
6 0
4 years ago
Read 2 more answers
Once ignited, a small rocket motor on a spacecraft exerts a constant force of 10 N for 7.80s. During the burn the rocket causes
Marat540 [252]

Answer:

a = 0.01 [m/s²]

Explanation:

To solve this problem we must use Newton's second law, which says that the sum of forces on a body is equal to the product of mass by acceleration.

ΣF = m*a

where:

F = forces = 10 [N]

m = mass = 100 [kg]

a = acceleration [m/s²]

10 = 100*a

a = 0.01 [m/s²]

4 0
4 years ago
Two mirrors are set up at an angle of 90.0°. If light is incident on the first mirror at an angle of 34.6° from the normal, at w
oksano4ka [1.4K]

Answer:

angle of incidence for the second mirror is 55.4 degree  

Explanation:

Given data;

Angle between two mirror is 90 degree

Incident angle on first mirror is 34.6 degree

For first mirror

Angle of incidence  is equal to  angle of reflection

34.6 degree = angle of reflection

r_1 = 42.5 degree

Now , for the triangle ABC         [from figure]

90 - r_1 + 90 + 90 - i_1 = 180

34.6 + i_1 = 90

i_1 = 55.4 degree

The angle of incidence for

angle of incidence for the second mirror is 55.4 degree  

4 0
3 years ago
a student determines the circumference of a golf ball. a man pulls a sledge of mass 25 kg across level ground with a horizontal
Travka [436]

Explanation:

Fnet = Ft - Ff = 60N - 20N = 40N

a = Fnet / m = 40N / 25kg = 1.6m/s².

4 0
3 years ago
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You need to know the height of a tower, but darkness obscures the ceiling. You note that a pendulum extending from the ceiling a
larisa86 [58]

Answer:

120 m

Explanation:

We can calculate the period of a pendulum using the following expression.

T=2\pi \sqrt{\frac{L}{g} }

where,

T is the period of the pendulum

L is the length of the pendulum (here it coincides with the height of the tower)

g is the gravity

T=2\pi \sqrt{\frac{L}{g} }\\L=(\frac{T}{2\pi } )^{2} g=(\frac{22s}{2\pi} )^{2} .9.81m/s^{2} =120m

6 0
3 years ago
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