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3 years ago

Which is a valid velocity reading for an object?

Physics

2 answers:

pashok25 [27]3 years ago

5 0

Answer:

45 m / s North is a valid vector reading for an object.

Explanation:

Then velocity will be defined by x km / hr North. And, magnitude of velocity defines the speed of the body. Although this tells the speed, but there is no description for the direction, so it's not a vector reading

zloy xaker [14]3 years ago

3 0

Answer:

Its 45 m/s north

Explanation:

cause its valid

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Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second a

snow_lady [41]

Answer:

Explanation:

the first 35 to 40 acceleration will be 5 same as 40 to 45 ,

5+5=10

7 0

3 years ago

8. A crate of bananas weighing 3000 N is shipped from South America to New York, where it

LiRa [457]

Answer:

Mechanical advantage = 15

Explanation:

Given the following data;

Output force = 3000N

Input force = 200N

To find the mechanical advantage;

Mechanical advantage = output force/input force

Substituting into the equation, we have

Mechanical advantage = 3000/200

Mechanical advantage = 15

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3 years ago

If a fast-moving car making a loud noise approaches and moves past the person, what will happen as the distance between the two

lesantik [10]

The pitch of the sound of the car will appear to be lower than the pitch of the car next to you

8 0

4 years ago

PLSSS HELPPPPP!! due today @ 8:30!

romanna [79]

Answer:

(1) weight = 565N

distance = 325m

time= 12.6s

power = work done/time

work done= force * distance

= 565*3.25 =1836.25

:. power = 1836.25\12.6

=145.7!

(2) the books will add more to her weight and thereby increasing her power output.

4 0

3 years ago

A right triangle with the base labeled 40 meters and the height labeled 30 meters. The hypotenuse is a dotted arrow labeled R. W

Pepsi [2]

Answer:

The magnitude of the resultant vector R is 50 meters ⇒ 2nd answer

Explanation:

The resultant vector is the vector sum of two or more vectors

If the two vectors perpendicular to each other, then the magnitude of

the resultant vector is the square root of the sum of their squares

If x and y are two vectors perpendicular to each other, then the

magnitude of its resultant vector R is:

→ $R=\sqrt{x^{2}+y^{2}}$

Lets solve the problem

A right triangle with the base labeled 40 meters and the height labeled

30 meters

The hypotenuse is a dotted arrow labeled R

→ The base and the height of the right triangle are perpendicular

→ The hypotenuse is the resultant vector of them

Assume that x represents the base of the triangle and y represents the

height of it

By using the rule above

→ x = 40 m , y = 30 m

→ $R=\sqrt{x^{2}+y^{2}}$

→ $R=\sqrt{(40)^{2}+(30)^{2}}$

→ $R=\sqrt{1600+900}$

→ $R=\sqrt{2500}=50$

The magnitude of the resultant vector R is 50 meters

7 0

3 years ago