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notsponge [240]
3 years ago
5

What is the net force on this object: F norm = 20N F frict = 14N F app = 22N F grav = 20N?

Physics
2 answers:
sergey [27]3 years ago
8 0

Answer:

8N is the net force on the object.

Explanation:

Given that,

\mathrm{F}_{\text {norm }}=20N is normal force acting upward (+20N)

F_{\text {frict }}=14N is frictional force which is opposite to the applied force (-14N)

\mathrm{F}_{\mathrm{app}}=22N is applied force which is applied on right side (+22N)

\mathrm{F}_{\mathrm{grav}}=20N is gravitational force acting downward (-20N)

We know that ,

\text { Fnet }=applied force \left(\mathrm{F}_{\mathrm{app}}\right)+frictional force\left(F_{\text {frict }}\right)+normal force \left(\mathrm{F}_{\mathrm{norm}}\right)+gravitational force \left(F_{\text {grav}}\right)

\mathrm{F}_{\mathrm{net}}=22+(-14)+ 20+(-20)

\mathrm{F}_{\mathrm{net}}=22-14+20-20

\mathrm{F}_{\mathrm{net}}=8 \mathrm{N}

Therefore the net force of the object be 8N.

viva [34]3 years ago
4 0

Answer:

8N i believe

Explanation:

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Oksana_A [137]

Answer:

α = - 1.883 rev/min²

Explanation:

Given

ωin = 113 rev/min

ωfin = 0 rev/min

t = 1.0 h = 60 min

α = ?

we can use the following equation

ωfin = ωin + α*t      ⇒     α = (ωfin - ωin) / t

⇒     α = (0 rev/min - 113 rev/min) / (60 min)

⇒     α = - 1.883 rev/min²

6 0
3 years ago
A technician wishes to determine the wavelength of the light in a laser beam. To do so, she directs the beam toward a partition
Nana76 [90]

Answer:

λ = 5.656 x 10⁻⁷ m = 565.6 nm

Explanation:

Using the formula of fringe spacing from the Young's Double Slit experiment, which is given as follows:

\Delta x = \frac{\lambda L}{d}\\\\\lambda = \frac{\Delta x\ d}{L}

where,

λ = wavelength = ?

Δx = fringe spacing = 1.6 cm = 0.016 m

L = Distance between slits and screen = 4.95 m

d = slit separation = 0.175 mm = 0.000175 m

Therefore,

\lambda = \frac{(0.016\ m)(0.000175\ m)}{4.95\ m}\\\\

<u>λ = 5.656 x 10⁻⁷ m = 565.6 nm</u>

6 0
3 years ago
2.Cars were previously manufactured to be as sturdy as possible, whereas today's cars
Marina CMI [18]

Answer:

Crumple zones are designed to absorb and redistribute the force of a collision. ... Also known as a crush zone, crumple zones are areas of a vehicle that are designed to deform and crumple in a collision. This absorbs some of the energy of the impact, preventing it from being transmitted to the occupants.

4 0
3 years ago
The mass of the Sun is 2multiply1030 kg, and the mass of the Earth is 6multiply1024 kg. The distance from the Sun to the Earth i
spayn [35]

Answer:

<em>a) 3.56 x 10^22 N</em>

<em>b) 3.56 x 10^22 N</em>

<em></em>

Explanation:

Mass of the sun M = 2 x 10^30 kg

mass of the Earth m = 6 x 10^24 kg

Distance between the sun and the Earth R = 1.5 x 10^11 m

From Newton's law,

F = \frac{GMm}{R^2}

where F is the gravitational force between the sun and the Earth

G is the gravitational constant = 6.67 × 10^-11 m^3 kg^-1 s^-2

m is the mass of the Earth

M is the mass of the sun

R is the distance between the sun and the Earth.

Substituting values, we have

F = \frac{6.67*10^{-11}*2*10^{30}*6*10^{24}}{(1.5*10^{11})^2} = <em>3.56 x 10^22 N</em>

<em></em>

A) The force exerted by the sun on the Earth is equal to the force exerted by the Earth on the Sun also, and the force is equal to <em>3.56 x 10^22 N</em>

b) The force exerted by the Earth on the Sun = <em>3.56 x 10^22 N</em>

7 0
3 years ago
Introduction to Forces<br> Warm-Up Active<br> How do forces affect the motion of an object?
In-s [12.5K]

Answer:

Forces can affect an object.

Balanced forces allow an object to continue moving at a constant motion (law of inertia).

Unbalanced forces cause a change in motion.

4 0
2 years ago
Read 2 more answers
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