PHYSICS HIGH SCHOOL

Think about multiplying the mass of each student by a factor to calculate each student’s kinetic energy. Is there a common factor that works for every student? If so, what’s this factor?

Answers

Answer 1

Answer:

Answer:

KE= (1/2)mv^2

given m, the remaining components of the equation are=

1/2v^2?

Explanation:

KE= (1/2)mv^2

plug in...

=(1/2)(27 kg)(3 m/s)^2= 121.5

KE= 121.5 J

Answer 2

Answer:

Answer:

Multiplying the mass of any student by a factor of 4.5 gives the kinetic energy of the student.

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The ability of solid rock to flow is called _____. convection plasticity seafloor spreading seismology

Answers

The ability of solid rock to flow is called Plasticity.

Plasticity is the deformation of a solid mateial which resulted in non reversible changes of shape in response to applied force.

Another example of plasticity is when you bend metal through a forcer force to create an art or kitchen set

Hope this Helps! Feel Free to mark me the brainliest!

Answer:

The ability of solid rock to flow is called Plasticity.

Explanation:

Plasticity is the deformation of a solid material which resulted in non reversible changes of shape in response to applied force.

Which of the following is NOT a shoulder and back weight training exercise A.Shoulder Shrug B.Triceps Curl C.Military Press
D.Suitcase

Answers

Tricep Curls is not a shoulder and back weight training exercise and is denoted as option B.

What is Exercise?

This is a form of physical activity which keeps the body fit and improves the general well being.

Tricep Curls work your triceps which is a muscle in the upper arm thereby making it the most appropriate choice.

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A.
- Shoulder Shrug works your shoulders... says it in the name XD

B.
- (Correct answer) Tricep Curls work your triceps (which is the muscle between your elbow and shoulder.)

C.
- Military press works your deltoids (which is a part of your shoulder.)

D.
- Suitcase is a full-body workout (this includes shoulders and back.)

A car acclerates forward at 3.5m/s2 .if the car has a mass of 873 kg, whats the force applied to the car

Answers

Newton's second law.
F=ma=873*3.5=3055.5 N

Net force on the car = mass x acceleration = 873x3.5 = 3055.5N.

Consider a single slit that produces a first-order minimum at 16.5° when illuminated with monochromatic light. show answer No Attempt 50% Part (a) At what angle, in degrees, is the second-order minimum?

Answers

Answer:

$\theta_2 = 34.61^0$

Explanation:

Path difference for the destructive interference of a single slit:

$D sin \theta = n \lambda$

For the first - order minimum, n = 1, and $\theta = \theta_1$

$D sin \theta_1 = \lambda$ .........(1)

For the second - order minimum, n = 2, and $\theta = \theta_2$

$D sin \theta_2 = 2 \lambda$ .........(2)

Dividing equation (2) by equation (1):

$(D sin \theta_2)/(Dsin \theta_1) = (2 \lambda)/(\lambda) \n( sin \theta_2)/(sin \theta_1) = 2 \n\theta_1 = 16.5^0\n( sin \theta_2)/(sin 16.5) = 2\nsin \theta_2 = 2 sin 16.5\nsin \theta_2 = 0.568\n\theta_2 = sin^(-1) 0.568\n\theta_2 = 34.61^0$

Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 900 kHz. (9.00 · 105 Hz.)_____ m

2.70 x 1014
3.70 x 10-15
3.33 x 102
3.00 x 10-3

Answers

v: velocity of wave
f: frequency
L: wavelenght

v = fL => L = v/f => L = (3x10^8)/(900x10^3) => L = 3.33 x 10^2m

Which of the following is a chemical property of a mineral?A Hardness
B Luster
C Atomic structure
D Color

Answers

Hardness, color , and luster.

But since you can pick one, I would say hardness

Final answer:

The chemical property of a mineral is its atomic structure, which influences its chemical behavior.

Explanation:

The correct answer is C Atomic structure. A chemical property of a mineral refers to the behavior of a mineral when it undergoes a chemical change or reaction.

Atomic structure is a chemical property because it determines the way in which the atoms of a mineral are arranged and bonded together, which influences its overall chemical behavior.

For example, the atomic structure of a mineral can determine its reactivity with acids or its ability to conduct electricity.The chemical property of a mineral could be derived from its atomic structure.

The atomic structure, which includes the number of protons, neutrons, and electrons in an atom of the element, determines the behavior of the element in a chemical reaction. Hardness, luster, and color are considered physical properties of the mineral, not chemical. Example, quartz (a common mineral) has a specific atomic structure that makes it react to acid differently than a mineral like calcite.

Learn more about chemical property here:

brainly.com/question/1935242

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