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3 years ago

What is the difference between speed and velocity?

Physics

1 answer:

inysia [295]3 years ago

6 0

Answer:

Velocity is defined as the rate of change of displacement whereas speed is defined as the rate of change in distance with respect to time.

Explanation:

i think it is b from this

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Which type of transformer is found outside a residential house

KonstantinChe [14]

The type of transformer that is found outside a residential house is :
step-down transformer
In step-down transformer, the secondary voltage is less than the primary voltage, which will reduce the voltage from the primary win.

7 0

3 years ago

when a man throws a stone in the direction of maximum range the stone rises to a height of 20m . what is the range and how long

jeyben [28]

Answer:

50m

Explanation:im just smart thank me later

3 0

3 years ago

_ Ba+_O2 =_BaO how do I balance this?

astraxan [27]

Answer:

02-ba=_4

Explanation:

5 0

3 years ago

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kirza4 [7]

helium group no val elect

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3 years ago

A satellite orbits the earth a distance of 1.50 × 107 m above the planet's surface and takes 8.65 hours for each revolution abou

kupik [55]

Answer:

The acceleration of the satellite is $0.87 m/s^{2}$

Explanation:

The acceleration in a circular motion is defined as:

$a = \frac{v^{2}}{r}$ (1)

Where a is the centripetal acceleration, v the velocity and r is the radius.

The equation of the orbital velocity is defined as

$v = \frac{2 \pi r}{T}$ (2)

Where r is the radius and T is the period

For this particular case, the radius will be the sum of the high of the satellite ( $1.50x10^{7} m$ ) and the Earth radius ( $6.38x10^{6} m$ ) :

$r = 1.50x10^{7} m+6.38x10^{6}m$

$r = 21.38x10^{6}m$

Then, equation 2 can be used:

$T = 8.65 hrs \cdot \frac{3600 s}{1hrs}$ ⇒ $31140 s$

$v = \frac{2 \pi (21.38x10^{6}m)}{31140s}$

$v = 4313 m/s$

Finally equation 1 can be used:

$a = \frac{(4313m/s)^{2}}{21.38x10^{6}m}$

$a = 0.87 m/s^{2}$

Hence, the acceleration of the satellite is $0.87 m/s^{2}$

6 0

3 years ago