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2 years ago

What is kinematics?explain!!~

Physics

2 answers:

KIM [24]2 years ago

8 0

Answer:

it is an 3d array of structure which involves inopperation methods

Explanation:

loollll

nydimaria [60]2 years ago

3 0

Kinematics refers to the study of motion without taking into account the forces that cause motion.

<h3>What is Kinematics?</h3>

Motion is the movement of a body from one point to another. There are two approaches to the study of motion which are;

Dynamics
Kinematics

Kinematics refers to the study of motion without taking into account the forces that cause motion. This is covered when we study the equations of motion.

Learn more about kinematics: brainly.com/question/25638908

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Displacement of the plane?

dsp73

Answer: The Total Displacement between City A and City B is 530 KM

Explanation: The Explanation to the Answer is simple you have to subtract City B To City A

5 0

2 years ago

Water is boiled at 300 kPa pressure in a pressure cooker. The cooker initially contains 3 kg of water. Once boiling started, it

Inessa [10]

Answer:

The average rate of energy transfer to the cooker is 1.80 kW.

Explanation:

Given that,

Pressure of boiled water = 300 kPa

Mass of water = 3 kg

Time = 30 min

Dryness friction of water = 0.5

Suppose, what is the average rate of energy transfer to the cooker?

We know that,

The specific enthalpy of evaporate at 300 kPa pressure

$h_{f}=561.47\ kJ/kg$

$h_{fg}=2163.8\ kJ/kg$

We need to calculate the enthalpy of water at initial state

$h_{1}=h_{f}$

$h_{1}=561.47\ kJ/kg$

We need to calculate the enthalpy of water at final state

Using formula of enthalpy

$h_{2}=h_{f}+xh_{fg}$

Put the value into the formula

$h_{2}=561.47+0.5\times2163.8$

$h_{2}=1643.37\ kJ/kg$

We need to calculate the rate of energy transfer to the cooker

Using formula of rate of energy

$Q=\dfrac{m(h_{2}-h_{1})}{t}$

Put the value into the formula

$Q=\dfrac{3\times(1643.37-561.47)}{30\times60}$

$Q=1.80\ kW$

Hence, The average rate of energy transfer to the cooker is 1.80 kW.

3 0

3 years ago

A bus traveled down Interstate 35 at a speed of 75 km/h for 4 hours. How many kilometers was the bus speeding?

vesna_86 [32]

Answer:

300 kilometers

Explanation:

75 km x 4 = 300 km

8 0

2 years ago

A proton moves at constant velocity in the +y direction, through a region in which there is an electric field and a magnetic fie

Ivenika [448]

Answer:

a) F_{e} - F_{m} = 0, b) v = 666.67 m / s

Explanation:

For the proton to move y-axis the sum of the electric and magnetic force must be zero, therefore

$F_{e} - F_{m}$ = 0

a) ∑ F = 0

F_{e} - F_{m} = 0

b) we write the forces

q E = q v B

v = E / B

Let's calculate

v = 300 / 0.45

v = 666.67 m / s

4 0

3 years ago

Followed by the previous question: presume that the electron performs a uniform circular motion around the hydrogen nucleus. Wha

Ksivusya [100]

Answer:

$A_c=87.73*10^{21}m/s$

Explanation:

From the question we are told that

$r=5\times 10^{-11}$

$T=1.5 \times 10^{-16}$

Generally the equation for velocity is mathematically given as

$Velocity (v)=\frac{2 \pi r}{t}$

$V=\frac{2 \pi (5*10^{-11})}{1.5*10^{-16}}$

Generally the equation for Centripetal acceleration is mathematically given as

$A_c=\frac{V^2}{r}$

$A_c=(\frac{20.944*10^5)}{r5*10^{-11}}$

$A_c=87.73*10^{21}m/s$

8 0

2 years ago

What is kinematics?explain!!~​

What is kinematics?explain!!~