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4 years ago

HELPPPPP 9) Type three problem questions using this sentence stem,

Physics

1 answer:

Setler [38]4 years ago

3 0

Answer: what is the effect of temperature on kinetic energy ?

Explanation: on what the scientists depend while theyre doing experiences to prove their results ??

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The number of wavelengths that pass a given point/second is called

myrzilka [38]

Answer:

I believe the answer is frequency

Hope this helps!! (let me know if it is right)

Explanation:

6 0

3 years ago

Un contenedor de 1800 N está en reposo sobre un plano inclinado a 28°, el coeficiente de fricción entre el contenedor y el plano

babunello [35]

Answer:

F = 1480.77N

Explanation:

In order to calculate the required force to push the container with a constant velocity, you take into account the the sum of force on the container is equal to zero. Furthermore, you have for an incline the following sum of forces:

$F-Wsin\alpha-F_r=0\\\\F-Wsin\alpha-N\mu cos\alpha=0\\\\F-Wsin\alpha-W\mu cos\alpha=0$ (1)

F: required force = ?

W: weight of the container = 1800N

N: normal force = weigth

α: angle of the incline = 28°

g: gravitational acceleration = 9.8m/s^2

μ: coefficient of friction = 0.4

You solve the equation (1) for F and replace the values of the other parameters:

$F=W(sin\alpha+\mu cos\alpha)\\\\F=(1800N)(sin28\°+(0.4)cos28\°)=1480.77N$

The required force to push the container for the incline with a constant velocity is 1480.77N

8 0

3 years ago

The fact that you can see interference colors in an oil slick on a puddle gives evidence that the oll film A) has two reflecting

luda_lava [24]

Answer:

Option A

Explanation:

The interference color in an oil slick on a puddle results from the interference caused as a result of reflection of light waves from the top as well as from the bottom surface of the oil slick.

This causes a disparity in the path of light reflecting from the surfaces and hence the sunlight is a band of seven colors, i.e., VIBGYOR, the disparities in the path results in constructive interference of the light rays which enables us to see interference colors in an oil slick.

7 0

4 years ago

Which two concepts are Newton´s laws based on?

sukhopar [10]

Instantaneous impulse and continuous force: these are the foundations of Newton laws. In short explanation; concept of force and mass.

6 0

3 years ago

Read 2 more answers

The velocity of a body of mass 20kg decreases from 20m/s to 5m/s in a distance of 100 m force on body is ?

MrRissso [65]

Answer:

hope it helps brainliest pls. and the answer is the one that is circled in red color.