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Ksivusya [100]
3 years ago
13

What is netwon first law of motion​

Physics
2 answers:
DanielleElmas [232]3 years ago
5 0
An object at rest will stay at rest, and an object in motion will stay in motion unless a force acts on it.
Misha Larkins [42]3 years ago
4 0

Answer:

Newton’s first law of motion states that there must be a cause—which is a net external force—for there to be any change in velocity, either a change in magnitude or direction. An object sliding across a table or floor slows down due to the net force of friction acting on the object.

Explanation:

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When frequency division multiplexing (FDM) is used to aggregate several modulated channels together, no separation between chann
zaharov [31]

Answer:

False.

Separation between channel is required when frequency division multiplexing (FDM) is used to aggregate several modulated channels together.

Explanation:

In Frequency Division Multiplexing (FDM), the total bandwidth is divided to a set of frequency bands that do not overlap. Each of these bands is a carrier of a different signal that is generated and modulated by one of the sending devices.

The frequency bands are separated from one another by strips of unused frequencies called the guard bands, to prevent overlapping of signals.

The modulated signals are combined together using a multiplexer (MUX) in the sending end. The combined signal is transmitted over the communication channel, thus allowing multiple independent data streams to be transmitted simultaneously. At the receiving end, the individual signals are extracted from the combined signal by the process of demultiplexing (DEMUX).

6 0
3 years ago
in positive numbers less than 1, the zeros between the decimal point and non zero are _____ significant ​
Margaret [11]
Zeros the left of the decimal but still less than one are non significant but to the right they are.
For example: 0.003 (only 3 is significant) but for 0.030 (two are significant)
8 0
3 years ago
How much heat is needed to raise the temperature of 100 g of water by 50 C, if the specific heat of water is 4,184 J/kg.C?
Yuliya22 [10]

Heat required to raise the temperature of water is given as

Q = ms\Delta T

here we have

m = 100 g = 0.100 kg

s = 4183 J/kg C

\Delta T = 50 ^0 C

now we can use the above equation

Q = 0.100 * 4184 * 50

Q = 20920 J

so here it requires 20920 J heat to raise the temperature of 100 g water by 50 degree C

4 0
3 years ago
Who’s going faster in the attached image?
ioda

Answer:

Art

Explanation:

Polly's line is linear, while arts line is going up with constant velocity. There for art is going faster.

8 0
3 years ago
Read 2 more answers
A car and a heavy truck roll down a hill and reach the bottom at the same speed. Compared with the momentum of the truck, the mo
RoseWind [281]

Answer:

A. less

Explanation:

The momentum of an object is directly proportional to it mass and velocity. It is the product of mass and velocity of the object. Given as

Momentum (p) = Mass (m) \times Velocity (v)

So the momentum of car,

p_{c} = m_{c}\times v_{c}

Momentum of truck,

p_{t} = m_{t}\times v_{t}

We know that, mass of car is less than that of truck and velocity of the two are same. It is implied that, momentum of car will be less than that of truck.

3 0
4 years ago
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