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Trava [24]
3 years ago
10

Mechanical advantage is always less than validity ratio​

Physics
1 answer:
nata0808 [166]3 years ago
7 0

That statement is true.

The question wasn't that specific, so I couldn't give you an answer...

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A swimmer, capable of swimming at a speed of 1.0 m/s in still water (i.e., the swimmer can swim with a speed of 1.0 m/s relative
navik [9.2K]
In this problem, we are given with the resultant velocity of the swimmer considering the current is running 0.91 m/s that is equal to 1.1 m/s2. In this case, using v = d/t, t = 3000m / 1.1 m/s equal to 2727.27 seconds equal to 45.45 hours. The distance downstream is equal to 2727.27 seconds * 0.91 m/s equal to 2481.82 meters. 
3 0
3 years ago
If the resultant force acting on a 2.0 kg object is equal to (3.0î + 4.0ĵ) N, what is the change in kinetic energy as the object
12345 [234]

Answer:

ΔK = 24 joules.

Explanation:

ΔK = Work done on the object

Work is equal to the dot product of force supplied and the displacement of the object.

W = F * Δs

Δs can be found by subtracting the vectors (7.0, -8.0) and (11.0, -5.0), which is written as Δs = (11.0 - 7.0, -5.0 - -8.0) which equals (4.0, 3.0).

This gives us

W = < 3, 4 > * < 4, 3 > = (3*4)+(4*3) = 24 J

3 0
1 year ago
A certain car going from Atlanta to Philadelphia averages 24.0 m/s over the course of the trip. Determine how long it takes the
Dennis_Churaev [7]

Answer:

14.5 hours

Explanation:

The relationship between speed, time and distance for a uniform motion is

v=\frac{d}{t}

where

v is the speed

d is the distance

t is the time taken

Here we know:

v = 24.0 m/s is the average speed

d=1250 km = 1.25\cdot 10^6 m is the distance

Solving the equation, we find the time taken:

t=\frac{d}{v}=\frac{1.25\cdot 10^6 m}{24.0 m/s}=52083 s

And since

1 hour = 3600 s

The time in hours is

t=52083 s \cdot \frac{1}{3600 s}=14.5 h

6 0
4 years ago
What equipment used for rinsing out glassware with distilled water
IgorC [24]

Answer:

Explanation:

Water Bottle

8 0
3 years ago
A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations
Orlov [11]

For a current loop with a radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T, largest potential energy difference is mathematically given as

du=0.2512J

<h3>What is the largest potential energy difference (in Joules) you can find between two orientations?</h3>

Generally, the equation for the initial velocity  is mathematically given as

v0=-iAB

Therefore

-2*\pi(0.2)(0.5))

v0=-0.1256J

for  180

theta=0180=-iABcos180

V180=0.1256J

Therefore

du=v180-v0

0.1258-(-0.1256

du=0.2512J

In conclusion,  potential energy

du=0.2512J

Read more about Energy

brainly.com/question/13439286

8 0
2 years ago
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