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ratelena [41]
3 years ago
10

Unless an object at rest is acted upon by a force, it stays at rest due to its

Physics
1 answer:
Lelu [443]3 years ago
4 0
There are a lot of things about this whole statement that bother me,
but I'm pretty sure you're not interested in those.  You just want a word
to glue onto the end and complete the statement.  OK.  Use "inertia".
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Where is the majority of the mass located in an atom
bogdanovich [222]
It's located in the nucleus
7 0
3 years ago
A student wishes to work out how much power she uses to lift her body when climbing a
Bess [88]

Answer

i'm not 100% sure but 1764

Explanation:

Work done = gravitational potential energy

Gravitational potential energy = mass(kg) × height(m) × gravitational field strength(N/kg)

We can assume that the student is on earth so the gravitational field strength is 9.8N/kg

So work done = 60 × 3×9.8

=1764

(if you need help calculating power but if you do just divide your answer by 12 and you will get 147)

4 0
2 years ago
Find the electric force acting on an alpha particle in a horizontal electric field of 600N/C
Sergeeva-Olga [200]
Since an alpha particle has 2 protons and no negative particles (electrons) to balance the net charge, its charge is
Q=2(1.6e-19)=3.2e-19C.
The force on a charged particle is F=QE so
(3.2e-19C)(600N/C)=1.92e-16N
6 0
3 years ago
A sinusoidal wave travels along a string. The time for a particular point to move from maximum displacement to zero is 0.13 s. W
vitfil [10]

Answer:

Part a)

T = 0.52 s

Part b)

f = 1.92 Hz

Part c)

speed = 3.65 m/s

Explanation:

As we know that the particle move from its maximum displacement to its mean position in t = 0.13 s

so total time period of the particle is given as

T = 4\times 0.13 = 0.52 s

now we have

Part a)

T = time to complete one oscillation

so here it will move to and fro for one complete oscillation

so T = 0.52 s

Part b)

As we know that frequency and time period related to each other as

f = \frac{1}{T}

f = \frac{1}{0.52}

f = 1.92 Hz

Part c)

As we know that

wavelength = 1.9 m

frequency = 1.92 Hz

so wave speed is given as

speed = wavelength \times frequency

speed = 1.92 \times 1.9

speed = 3.65 m/s

4 0
3 years ago
FEMA stands for Federal Emergency?
Nataliya [291]
FEMA stands for <span>Federal Emergency Management Agency</span>
5 0
3 years ago
Read 2 more answers
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