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4vir4ik [10]
3 years ago
8

When the velocity of a moving object stays the same, it has a what speed

Physics
1 answer:
Molodets [167]3 years ago
8 0
Same rate of change of distance but velocity include circular motion and known as vector quantity but speed is scalar quantity only.
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A satellite is acted upon by a 10n force upwards and 20n force downwards. What is the net force acting on the satellite and what
Lina20 [59]

Answer:

Net force = 10 N in downward direction

Explanation:

Given that,

Upward force = 10 N

Downward force = 20 N

Let downward is negative and upward is positive.

Net force = 10+(-20)

= -10 N

So, the net force is 20 N and it is acting in downward direction.

8 0
3 years ago
VTheStampy is this right and what do I do next?
koban [17]
That is correct.  Based on the listed requirements, that is all you have to do.
3 0
3 years ago
If the potential due to a point charge is 490 V at a distance of 10 m, what are the sign and magnitude of the charge?
uysha [10]

Answer:

+5.4×10⁻⁷ C

Explanation:

Electric potential: This can be defined as the work done in bringing a unit charge from infinity to that point against the action of the field. The S.I unit of potential is volt (V)

The formula for potential is

V = kq/r............................ Equation 1

Where V = electric potential, k = proportionality constant, q = charge, r = distance.

making q the subject of the equation,

q = Vr/k............................ Equation 2

Given: V = 490 V, r = 10 m,

Constant: k = 9×10⁹ Nm²/C²

Substitute into equation 2

q = 490(10)/(9×10⁹)

q = 5.4×10⁻⁷ C

q = +5.4×10⁻⁷ C

Hence the charge is +5.4×10⁻⁷ C

7 0
3 years ago
Which property of light is not explained by the wave model of light?
Ronch [10]

Blue light can knock electrons off a plate, but red light can't

5 0
3 years ago
1. An astronaut is getting ready to explore. If his mass is 60 kg, what is his weight<br> on Earth?
kifflom [539]

Answer:

<h3>The mass of an object is the same on Earth, in orbit, or on the surface of the Moon. ... 1N=1kg ⋅m/s2. 1 N = 1 kg · m/s 2 . ... The gravitational force on a mass is its weight. ... </h3>

Explanation:

<h3>ILY:)</h3>

3 0
2 years ago
Read 2 more answers
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