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3 years ago

According to Newton´s second law of motion, what does an object with more mass require? Question 8 options:

2 answers:

6 0

More force to accelerate. If you push a car compared to a beach ball, which will you have to push harder for it to move? That's pretty much what the question is asking, if that helps any:)

trapecia [35]3 years ago

6 0

more for force to accelerate

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If a person lives in china in which two hemispheres does he or she live

Delvig [45]

on the globe , the largest continent on earth , asia lies in between eastern and northern hemisphere. it is also known that country china comes in asian continent. hence we can say that china also lies in between eastern and northern hemisphere.

hence the two hemispheres are northern and eastern.

5 0

4 years ago

A system is said to be closed if _____ the system.

hoa [83]

No net force acts on it.example is the earth

5 0

3 years ago

The three vectors in Fig. 3-33 have magnitudes a = 3.00 m, b = 4.00 m, and c = 10.0 m and angle θ = 30.0°. What are

aliya0001 [1]

Answer:

a) $a_{x} =3$ b) $a_{y} =0$

c) $b_{x} =3.46$ d) $b_{y} =2$

e) $c_{x} =0$ f) $c_{y} =10$

g) p = -5.77 h) q=5

Explanation:

Diagram for given question is attached below in fig 1

for vector $\vec{a}$

θ = 0°

$a_{x} = 3 cos (0)\\a_{x} = 3\\a_{y} = 3 sin (0)\\a_{y} = 0$

for vector $\vec{b}$

θ = 30°

$b_{x} = 4 cos (30)\\b_{x} = 3.46\\b_{y} = 4 sin (30)\\b_{y} = 2$

for vector $\vec{c}$

θ = 90°

$c_{x} = 10 cos (90)\\c_{x} = 0\\c_{y} = 10 sin (90)\\c_{y} = 10$

$\vec{c} = p\vec{a} + q\vec{b}$

$c =c_{x} \hat{i} + c_{y}\hat{j}\\as a_{y} =0\\c_{x} \hat{i} + c_{y}\hat{j} = pa_{x} \hat{i} +q(b_{x} \hat{i} +b_{y} \hat{j} )\\c_{x} \hat{i} = pa_{x} \hat{i} +qb_{x} \hat{i}\\c_{y}\hat{j} =qb_{y}\hat{j}$

$q=\frac{c_{y}}{b_{y}} \\q=\frac{10}{2}\\q=5$

$c_{x} \hat{i} = pa_{x} \hat{i} +qb_{x} \hat{i}\\0 = p(3) + (5)(3.46)\\p = -5.77$

5 0

3 years ago

A simple gaussmeter for measuring horizontal magnetic fields consists of a stiff 52 cm wire that hangs from a conducting pivot s

vivado [14]

Answer:

8.1345°

Explanation:

We apply $\sum F_x=0$ to the wire to obtain:

$\sum F_x=-F_m+mg\ sin \theta=0$

#The magnitude of the magnetic force acting on the wire is given by:

$F_m=IlB\ sin \phi, \phi=90\textdegree\\\\F_m=IlB$

#Substitute for $F_m$ to obtain:

$-IlB+mg\ sin \ \theta=0\ \ \ \ \ \ \ \ ...i$

Solve for $\theta$ :

$\theta=sin^{-1}[\frac{IlB}{mg}]$

We the substitute the numerical values to calculate the equilibrium angular displacement:

$\theta= sin^{-1}[\frac{0.2A\times0.52m\times 0.040T}{0.003\ kg\times9.8m/s^2}]\\\\=8.1345\textdegree$

Hence, the equilibrium angular displacement of the wire from vertical if the horizontal magnetic field is 8.1345°

3 0

3 years ago

Help me write this three paragraph Physics essay. I'll Venmo you, give me asking price.

viktelen [127]

Answer:

Physics, or the study of matter, energy, and the interactions between them, helps us to understand the laws and rules that govern the physical world. Not every student will grow up and study physics on a deeper level, but everyone uses basic physics concepts to navigate everyday life.A

Physics is a natural science that involves the study of matter and its motion through space and time, along with related concepts such as energy and force. More broadly, it is the study of nature in an attempt to understand how the universe behaves.Physics helps you to understand the world around you, and satisfy your curiosity. Studying physics develops your critical thinking and problem-solving skills. Physicists are versatile, which opens a wide range of future careers.

8 0

3 years ago