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3 years ago

I though a=9.8 is in free fall?

2 answers:

8 0

A free-falling object has an acceleration of 9.8 m/s/s, downward (on Earth). ... It is known as the acceleration of gravity - the acceleration for any object moving under the sole influence of gravity.

Elina [12.6K]3 years ago

7 0

9.8m/s^2, i’m not sure what you are asking

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True or False: GLOBAL WINDS

jasenka [17]

I believe the answer is tru

5 0

3 years ago

Read 2 more answers

Pls help me pls i’m begging u

Minchanka [31]

Answer: Rolling Friction

Explanation:A rolling ball stops because the surface on which it rolls resists its motion. A rolling ball stops because of friction.

3 0

3 years ago

If you place 48 cm object 15 m in front of a convex mirror of focal length 5 m, what is the magnification of the image?

Arisa [49]

Answer:

m = 0.25

Explanation:

Given that,

Object distance, u = -15cm

Height of the object, h = 48

Focal length, f = cm

We need to find the magnification of the image.

Let v is the image distance. Using mirror's equation.

$\dfrac{1}{v}+\dfrac{1}{u}=\dfrac{1}{f}\\\\\dfrac{1}{v}=\dfrac{1}{f}-\dfrac{1}{u}\\\\=\dfrac{1}{5}-\dfrac{1}{(-15)}\\\\=3.75\ cm$

Magnification,

$m=\dfrac{-v}{u}\\\\=\dfrac{-3.75}{-15}\\\\=0.25$

Hence, the magnification of the image is 0.25.

7 0

3 years ago

A proton moves along the x-axis with vx=1.0×107m/s. As it passes the origin, what are the strength and direction of the magnetic

Sunny_sXe [5.5K]

Answer:

Magnetic field will be ZERO at the given position

Explanation:

As we know that the magnetic field due to moving charge is given as

$B = \frac{\mu_0 qv sin\theta}{4\pi r^2}$

so here we know that for the direction of magnetic field we will use

$\hat B = \hat v \times \hat r$

so we have

$\hat B = \hat i \times (\hat i + 0\hat j + 0\hat k)$

so magnetic field must be ZERO

So whenever charge is moving along the same direction where the position vector is given then magnetic field will be zero

3 0

3 years ago

If a truck weighs 195,000N what is the mass of the truck

Vsevolod [243]

Answer:

19500kg

Explanation:

If you divide 195000N by 10

8 0

3 years ago