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pantera1 [17]
3 years ago
14

The rate at which an object's velocity changes is called its

Physics
2 answers:
Marianna [84]3 years ago
6 0
I agree the answer is A
Flura [38]3 years ago
4 0

Answer:

A. acceleration

Explanation:

Acceleration is the increase of motion, it is the rate at which an object changes its velocity.

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On earth, two parts of a space probe weigh 14500 N and 4800 N. These parts are separated by a center-to-center distance of 18 m
Nastasia [14]

Answer:

F = 1.489*10^{-7}  N

Explanation: Weight of space probes on earth is given by:W= m*g

W= weight of the object( in N)

m= mass of the object (in kg)

g=acceleration due to gravity(9.81 \frac{m}{s^{2} })

Therefore,

m_{1} = \frac{14500}{9.81}

m_{1} = 1478.08  kg

Similarly,

m_{2} = \frac{4800}{9.81}

m_{2} = 489.29  kg

Now, considering these two parts as uniform spherical objects

Also, according to Superposition principle, gravitational net force experienced by an object is sum of all individual forces on the object.

Force between these two objects is given by:

F =  \frac{Gm_{1} m_{2}}{R^{2} }

G= gravitational constant (6.67 * 10^{-11} m^{3} kg^{-1} s^{-2})

m_{1} , m_{2}= masses of the object

R= distance between their centres (in m)(18 m)

Substituiting all these values into the above formula

F = 1.489*10^{-7}  N

This is the magnitude of force experienced by each part in the direction towards the other part, i.e the gravitational force is attractive in nature.

7 0
3 years ago
A bird flies 2 km to the south then 0.2 km to the north . What is the displacement of the bird?
lidiya [134]
The displacement of the bird is 1.8 km...because displacement is the distanse of the object from mean position to the travelled position.....hope it helps
8 0
3 years ago
Read 2 more answers
A bar of gold has a temperature of 31°C, and a bar of aluminum has a
Katarina [22]
Different dense matters
3 0
3 years ago
Please help....
neonofarm [45]

Answer:

its a compass rose or a temperature that tells how is it hot or cold or it is to u where to go when needed like a map.And the angles is 6

Explanation:

8 0
3 years ago
The density of water is 1.0 gram per milliliter at 4 degrees Celsius.
Mazyrski [523]

Sugar molecules present at the bottom of solution due to more mass.

<h3>Which is more denser water or sugar?</h3>

Table sugar is more dense than water due to the presence of more mass of sugar molecule as compared to water. We know that denser objects has more mass so that's why sugar molecules present at the bottom of solution due to more mass.

Learn more about density here: brainly.com/question/1354972

8 0
2 years ago
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