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1 year ago

A 1.2kg ball rolls forward with an acceleration of 1.11 m/s. What is the net force on the ball

Physics

1 answer:

grandymaker [24]1 year ago

8 0

Answer:

1.332 N

Explanation:

Net Force = Mass x Acceleration
1.2 x 1.11 = 1.332 N

I'm so sorry if I'm wrong.

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A geosynchronous satellite orbits Earth at a distance of 42,250 km from the center of Earth and has a period of 1 day. What is t

yan [13]

Answer:

The centripetal acceleration of the satellite is $a=0.22\ m/s^2$ .

Explanation:

Given that,

The distance covered by a geosynchronous satellite, d = 42250 km

The time taken by the satellite to covered distance, t = 1 day = 24 hours

Since, 24 hours = 86400 seconds

Let v is the speed of the satellite. It is given by the total distance divided by total time taken such that :

$v=\dfrac{d}{t}$

$v=\dfrac{2\pi d}{t}$

$v=\dfrac{2\pi\times 42250 \times 10^3}{86400 }$

v = 3072.5 m/s

The centripetal acceleration of the satellite is given by :

$a=\dfrac{v^2}{d}$

$a=\dfrac{(3072.5)^2}{42250 \times 10^3}$

$a=0.22\ m/s^2$

So, the centripetal acceleration of the satellite is $a=0.22\ m/s^2$ . Hence, this is the required solution.

7 0

3 years ago

The four living things seen here, dog, flower, algae, and bacteria, are all made of cells. A - C are multicellular, but D is uni

djverab [1.8K]

B) They are all made up of at least one cell

6 0

3 years ago

Read 2 more answers

What is the mass number of the isotope lithium-7?

NNADVOKAT [17]

<span>the answer is 7...What is the mass number of the isotope lithium-7? the mass of isotope lithium-7 is 7. </span>

5 0

3 years ago

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A quantity that is fully described by magnitude alone is a ___________ quantity. A quantity that is fully described by both magn

deff fn [24]

Answer:

Scalar quantity

Vector quantity

Explanation:

A scalar quantity is a quantity that is fully described by magnitude alone. Examples include; mass, temperature etc

A vector quantity is described by both magnitude and direction. E.g force, weight etc

7 0

3 years ago

A centripetal force of 190 N acts on a 1,550-kg satellite moving with a speed of 5,300 m/s in a circular orbit around a planet.

kvasek [131]

Answer:

Radius, r is equal to 229.16×10^6m

Explanation:

Given the following parameters;

Centripetal force on the satellite, Fc = 190N.

Mass of the satellite, M = 1,550-kg.

Speed of the satellite, V = 5,300m/s.

The relationship between a satellite of mass (m) moving in a circular orbit of radius (r) with a speed (v) and a centripetal force (Fc) is given by the equation;

Fc = (MV²)/r

Since, we're solving radius, r; we make "r" the subject of formula;

Thus, r = (MV²)/Fc

Substituting into the above equation;

r = (1550 × [5300]²)/190

r = (1550 × 28090000)/190

r = 43539500000/190

r = 229155263.16

Radius, r is equal to 229.16 × 10^6m

4 0

3 years ago