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Temka [501]
4 years ago
15

Which of the following determine an object's velocity?

Physics
1 answer:
STatiana [176]4 years ago
6 0
A. speed and direction......
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make a sentence using the terms yoga,Flexibility hatha yoga Namaste sun salutation meditation and relaxation
Leya [2.2K]

Answer:

Shake and move your body to release stress and shift your energy. Calm your nervous system with breathing exercises, and learn to settle your mind with meditation.

We recommend that you start with the movement classes and then add the breathing and meditation classes directly after, or as a separate practice later in the day or when needed.

Come back to the classes that you found most helpful. You might feel the difference immediately but aim to practice at least 2 classes a week over 3-4 weeks for the most effective results.

3 0
3 years ago
An automobile has a mass of 1200 kg. What is its kinetic energy, in kJ, relative to the road when traveling at a velocity of 50
nikdorinn [45]

Answer:

K.E = 463.04 k J

P = 23.14 Watt

Explanation:

given,

mass of automobile = 1200 kg

velocity = 50 km/h

             = 50 × 0.278

             = 13.9 m/s

kinetic energy = \dfrac{1}{2}mv^2

                        =\dfrac{1}{2}\times 1200 \times 13.9^2

        K.E = 115.93 k J

vehicle accelerated to velocity = 100 km/h

                                                    = 100 × 0.2778

                                                    = 27.78 m/s

kinetic energy = \dfrac{1}{2}mv^2

                        =\dfrac{1}{2}\times 1200 \times 27.78^2

        K.E = 463.04 k J

work done = change in kinetic energy

                   = 463.04 - 115.93

                   = 347.11 J

Power = \dfrac{work\ done}{time}

Power =\dfrac{347.11}{15}

P = 23.14 Watt

7 0
3 years ago
The least penetrating form of radiation is
goldfiish [28.3K]

Answer:

radio radiation........

6 0
3 years ago
Read 2 more answers
A 259-kV power transmission line carrying 429 A is hung from grounded metal towers by ceramic insulators, each having a 0.71×109
ella [17]

Answer:

The resistance is 7.47\times10^{6}\ \Omega.

Explanation:

Given that,

Power = 259 kV

Current = 429 A

Resistance R=0.71\times10^{9}\ Omega

We need to calculate the current in each insulator

Using formula of current

I=\dfrac{P}{R}

Put the value into the formula

I=\dfrac{259\times10^{3}}{0.71\times10^{9}}

I=3.64\times10^{-4}\ A

So all 95 insulators are in parallel

We need to calculate the resistance

Using formula of resistance

\dfrac{1}{R}=\sum_{i=1}^{95}\dfrac{1}{R_{i}}

Put the value into the formula

\dfrac{1}{R}=\dfrac{95}{0.71\times10^{9}}

\dfrac{1}{R}=1.338\times10^{-7}

R=\dfrac{1}{1.338\times10^{-7}}

R=7473841.5=7.47\times10^{6}\ \Omega

Hence, The resistance is 7.47\times10^{6}\ \Omega.

8 0
4 years ago
Discuss a main factor negatively affecting species around the world and what scientist are doing in order to combat those proble
stiks02 [169]
These are the common main factors negatively affecting species around the world:

• Invasive species. The overview of non-native species into an ecosystem can intimidate endemic wildlife, distress human health and upset economies. Scientist solution contain making systems to avoid introduction of invasive species in the first place effectively monitoring for new infestations and fast abolition anew noticed intruders. 

• Over-exploitation. Overhunting, overfishing and overharvesting give importantly to the damage of biodiversity which is killing of numerous species over the past several hundred years. The solution is conservation and constant consciousness neighboring over-exploitation mostly poaching and overfishing. 

• Climate change. Alterations in climate over our planet past have altered life on earth in the long run which ecosystems have originate and left and species regularly go nonexistent. The solution must be reducing carbon prints and promoting education.

• Deforestation and habitat loss. This is a direct cause of extinction and loss of biodiversity. The solution is recommending stronger scientific forest protection laws. 

• Lastly is the pollution. Acid rain which is normally initiated by the burning of fossil fuels can acidify smaller bodies of water and soil harmfully affecting the species that live there by altering breeding and nourishing habits. The solution must combat atmospheric and hydrologic pollution. 
3 0
4 years ago
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