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Sholpan [36]
3 years ago
8

A 55 newton force applied on an object moves the object 10 meters in the same direction as the force. What is the value of work

done on the object?
Physics
2 answers:
gtnhenbr [62]3 years ago
8 0

<u>Answer:</u> The work done on the object is 110 W

<u>Explanation:</u>

Work is defined as the force that is causing the movement or displacement of an object.

Mathematically,

W=F\times d

where,

W = work done on the object

F = Force applied on the object = 55 N

d = displacement = 10 m

Putting values in above equation, we get:

W=55N\times 2m\\\\W=110N.m=110W

Hence, the work done on the object is 110 W

Elanso [62]3 years ago
6 0
F=55 \ N \\ d=10 \ m \\ \boxed{W-?} \\ \bold{Solving:} \\ \boxed{W=F \cdot d} \\ W=55\ N \cdot 10 \ m \\ \Rightarrow \boxed{W=550 \ J}
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Find the fundamental frequency and the next three frequencies that could cause standing-wave patterns on a string that is 30.0 m
maksim [4K]

Answer:

0.786 Hz, 1.572 Hz, 2.358 Hz, 3.144 Hz

Explanation:

The fundamental frequency of a standing wave on a string is given by

f=\frac{1}{2L}\sqrt{\frac{T}{\mu}}

where

L is the length of the string

T is the tension in the string

\mu is the mass per unit length

For the string in the problem,

L = 30.0 m

\mu=9.00\cdot 10^{-3} kg/m

T = 20.0 N

Substituting into the equation, we find the fundamental frequency:

f=\frac{1}{2(30.0)}\sqrt{\frac{20.0}{(9.00\cdot 10^{-3}}}=0.786 Hz

The next frequencies (harmonics) are given by

f_n = nf

with n being an integer number and f being the fundamental frequency.

So we get:

f_2 = 2 (0.786 Hz)=1.572 Hz

f_3 = 3 (0.786 Hz)=2.358 Hz

f_4 = 4 (0.786 Hz)=3.144 Hz

6 0
3 years ago
An object's inertia causes it to come to a rest position.<br><br> True or false
Scilla [17]
The answer is False
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8 0
3 years ago
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A loaf of bread (volume 3100 cm3) with a density of 0.90 g/cm3 is crushed in the bottom of the grocery bag into a volume of 1240
andrew11 [14]

Answer:

2,25 g/cm3

Explanation:

Hi, you have to know one thing for this.. Density = mass/Volume,

When you have the loaf of bread with 3100 cm3 and a density of 0.90 g/cm3, the mass of that bread is 2790 g because of if you isolate the variable mass from the equation you get..  mass= density x volume

Later, have on account the mass never changes, so you crush the bread and the mass is the same.. so when you have the mashed bread.. you know that the mass is 2790 g and the volume of the bag is 1240 cm3, so you apply the main equation.... density=2790 g / 1240 cm3 , so density =  2,25 g/cm3

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3 years ago
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Velocity = 14 m/s

Time = 20 s

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5 0
3 years ago
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Goryan [66]

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3 years ago
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