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shusha [124]
3 years ago
7

Which one of the following is not a vector quantity? a) Displacement b ) density c) force d) vecocity​

Physics
1 answer:
katen-ka-za [31]3 years ago
8 0

Answer:

density

Explanation:

density is a scalar quantity having only magnitude and no info about derection

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The magnitude E of an electric field depends on the radial distance r according to E = A/r4, where A is a constant with unit vol
Lesechka [4]

Answer:

\Delta V = 0.053 A

Explanation:

Electric field in a given region is given by equation

E = \frac{A}{r^4}

as we know the relation between electric field and potential difference is given as

\Delta V = -\int E. dr

so here we have

\Delta V = - \int (\frac{A}{r^4}) .dr

\Delta V = \frac{A}{3r_1^3} - \frac{A}{3r_2^3}

here we know that

r_1 = 1.71 m  and r_2 = 2.89 m

so we will have

\Delta V = \frac{A}{3}(\frac{1}{1.71^3} - \frac{1}{2.89^3})

so we will have

\Delta V = 0.053 A

8 0
3 years ago
How many planets are made up of gas
Vadim26 [7]

Answer:

The four gas giants in our solar system are Neptune, Uranus, Saturn, and Jupiter. These are also called the Jovian planets. "Jovian planet" refers to the Roman god Jupiter and was intended to indicate that all of these planets were similar to Jupiter.

Explanation:

i hope this helps

7 0
2 years ago
What law states force is dependent on the mass and acceleration of an object
UNO [17]

Answer:

Newton's second law of motion

Explanation:

Newton's second law of motion can be stated  

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

in another form,

Force = mass * acceleration

5 0
4 years ago
8. A 12 kg mass, moving at 16 m/s, experiences an opposing force of 18 N for 3.0 s. What is the
pshichka [43]

Answer: 54 kg*m/s

Explanation:

6 0
3 years ago
A car travels between two towns 80 miles apart in 2 hours. What is its average speed?
3241004551 [841]
Speed is defined as the distance per unit time.
So we can calculate the speed by :

S = Distance traveled/Time taken
S = 80 /2
S = 40 miles/hour
7 0
3 years ago
Read 2 more answers
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