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just olya [345]
3 years ago
13

If a child pulls a sled through the snow on a level path with a force of 60 N exerted at an angle of 39° above the horizontal, f

ind the horizontal and vertical components of the force.
Physics
1 answer:
White raven [17]3 years ago
5 0

Explanation:

Given that,

Force with which a child pulls a sled, F = 60 N

It is at an angle of  39° above the horizontal. We need to find the horizontal and vertical components of the force.

The horizontal component is given by :

F_x=30\ cos(39)=23.31\ N

The vertical component is given by :

F_y=30\ sin(39)=18.87\ N        

So, the horizontal and vertical components of the force are 23.31 N and 18.87 N. Hence, this is the required solution.

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A bowling ball (mass = 7.2 kg, radius = 0.11 m) and a billiard ball (mass = 0.38 kg, radius = 0.028 m) may each be treated as un
Semenov [28]

Answer:

Explanation:

Given that

Mass of bowling ball M1=7.2kg

The radius of bowling ball r1=0.11m

Mass of billiard ball M2=0.38kg

The radius of the Billiard ball r2=0.028m

Gravitational constant

G=6.67×10^-11Nm²/kg²

The magnitude of their distance apart is given as

r=r1+r2

r=0.028+0.11

r=0.138m

Then, gravitational force is given as

F=GM1M2/r²

F=6.67×10^-11×7.2×0.38/0.138²

F=9.58×10^-9N

The force of attraction between the two balls is

F=9.58×10^-9N

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3 years ago
You are conducting a cross using Drosophila melanogaster. The results of your cross indicate that the recombination frequency is
Lapatulllka [165]

Answer: Explained below

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4 0
3 years ago
Calculate the potential difference of a wire of 10 ohm , through which 5 A of current is flowing .
HACTEHA [7]
Resistance= Potential Difference/Current
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Heather and Matthew take 45 s to walk eastward along a straight road to a store 72 m away. What is their average velocity?
vladimir1956 [14]

Answer:

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Explanation:

Given that,

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