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3 years ago

A cyclist travels 36km in 3 hours. What is the cyclist’s average speed?

1 answer:

4 0

To determine what the cyclists average speed is, simply divide the distance the cyclist has travelled by the time the cyclist has traveled for.

Assuming that this is the average rate the cyclist is moving at it would be 12 km/hr.

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On a day when the temperature reaches 50°F, the temperature in degrees Celsius is: 20°C

anzhelika [568]

Answer:

10°C

Explanation:

To convert °F to °C, we use the formula:

°C = (°F - 32) * ( 5/9)

So, to convert 50°F to the equivalent in °C, we can proceed as follows:

°C = ( 50 - 32 ) * (5/9)

°C = ( 18 ) * (5/9), which is, approximately,

°C = 9.999999999... ≈ 10 (5/9 ≈0.555555...)

So, 50°F is equivalent to 10°C.

3 0

3 years ago

In a perfectly elastic collision between two perfectly rigid objects

ipn [44]

Both the total momentum and the total kinetic energy are conserved

Explanation:

- In a collision between two or more objects, if there are no external forces acting on the system (isolated system), the total momentum of the objects is always conserved. This is called principle of conservation of momentum, and can be written as follows:

$mu+MU = mv+MV$

where

m, M are the masses of the two objects

u, U are the initial velocities of the two objects

v, V are the final velocities of the two objects

- The total kinetic energy, however, is not always conserved. In fact, we have two types of collision:

1) In a perfectly elastic collision, the total kinetic energy of the objects is conserved. This means that we can write the following equation:

$\frac{1}{2}mu^2 + \frac{1}{2}MU^2 = \frac{1}{2}mv^2+\frac{1}{2}MV^2$

2) In an inelastic collision, the total kinetic energy of the object is NOT conserved. This means that part of the total kinetic energy is "lost", converted into other forms of energy (mainly thermal energy, due to the presence of frictional forces within the system). The most extreme case is called perfectly inelastic collision, in which the two objects stick together after the collision, and there is the maximum loss of kinetic energy.

Learn more about collisions:

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7 0

4 years ago

Anyoneeee knows transfer function??????

elena-14-01-66 [18.8K]

in engineering a transfer function of an electronic or control system component is a mathematical function which directly models the devices output for each possible input

6 0

3 years ago

The graphs display velocity data. Velocity is on the y-axis (m/s), while time is on the x-axis (s). Based on the graphs,

EastWind [94]

Answer:

0 1 2 3 4 . because the particle moved with a constant acceleration

3 0

2 years ago

Suppose you are standing in the center of a large, densely populated city that is exactly circular, surrounded by a ring of subu

bogdanovich [222]

Answer:

Homogenity means identical and even distribution of matter in every location and isotropic means distribution that is the same in every direction. The population is inhomogeneous because it consist of different species and has an uneven distribution, however it is isotropic because the distribution is the same in every direction. if you were to cut the circular section from the center to the end, in every direction you may look it will always be the same.

5 0

3 years ago