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Physics

06/20/22

Explain why the emission spectra of elements show lines of different colors but inly in narrow bands

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Physics

06/20/22

I have a physics question

The half-life of radium-226 is 1,600 years and the half-life of carbon-14 is 5,730 years. Mathematically prove that the decay constant for radium-226 is larger than the decay constant for carbon-14.

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Physics

06/20/22

Can someone help me with physics hw

1) a microwave has a typical wavelength of about 0.1 meter. What us the comparable wavelength of a radio wave?A) less than 0.1 meterB) greater than 0.1 meterC) equal to 0.1 meterD) it depends on... more

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Physics

06/20/22

Water is flowing in a pipe of varying cross-sectional area...

Water is flowing in a pipe of varying cross-sectional area, and at all points the water completely fills the pipe. The cross-sectional area at point 1 is 0.0825 m2, and the velocity is 3.29 m/s.... more

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Physics Science

06/20/22

1b) An object 0.75 m tall is placed 3.4m in front of a convex mirror that has a focal length of -80cm. i) Calculate the image distance. ii) Calculate the image height.

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Physics

06/17/22

Which mirror is used as rearview and sideview mirror in vehicles?

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Physics Science

06/16/22

What is its velocity at the highest point?

A stone is thrown upward with a velocity of 4 m/s and fell down right after. What is its velocity at the highest point?

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Physics Science

06/16/22

How to find the resultant of two vectors that are perpendicular to each other?

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Physics Science Physical Science

06/15/22

Need Help! Thankyou

. A lens has a focal length of 2m. A pencil is placed 3m from the lens.Where will the image of the pencil be formed? (show all work) (3 marks)Is the image inverted or upright? How do you know? (1... more

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Physics

06/15/22

Physics Optics Help

An object that is 45cm away from a lens has a magnification of 2.5.What is the focal distance of this lens? Is the image created real or virtual and how do you know?

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Physics

06/15/22

Physics Optics Help

CALCULATIONS4. A lens has a focal length of 2m. A pencil is placed 3m from the lens.Where will the image of the pencil be formed? Is the image inverted or upright? How do you know?

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Physics

06/15/22

Physics Question Help

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Physics Science

06/15/22

What is the defining law that helps Maxwell to solve the missing link between the existence of electricity and magnetism in space?

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Physics

06/15/22

Calculate the wavelength of the resulting wave on the cable

A steel cable with total length 75 m and mass 150 kg is connected to two poles. The tension in the cable is 2,204 N, and the wind makes the cable vibrate with a frequency of 2 Hz. Calculate the... more

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Physics

06/15/22

Equation for tension in a string

Two blocks are connected by a string and pulley (such that block one (m sub 1) is on an incline, block two (m sub 2) is hanging from the string), and the incline of the ramp is the angle theta.... more

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Physics

06/14/22

Please help me with physics hw i dont understand

1) which of the following gives good evidence for the particle nature of EM radiation?A) photoelectric effectB) electron probability regionsC) interference patternsD) diffraction2) which of the... more

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Physics

06/13/22

circuit board construction

how do you build a circuit board at home?

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Physics

06/13/22

BRAINLIEST!!! how does the electric force between two charged particles change if the distance between them is reduced by a factor of 2?

a. its reduced by a factor of 2.b.. its reduced by a factor of 4.c. its increased by a factor of 2.d. it is increased by a factor of 4.

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Physics

06/13/22

A 12 kg runaway grocery cart runs into a spring with spring constant 220 N/m and compresses it by 80 cm .

A 12 kg runaway grocery cart runs into a spring with spring constant 220 N/m and compresses it by 80 cm .What was the speed of the cart just before it hit the spring?

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Physics

06/13/22

physics - question

In a physics lab experiment, a spring clamped to the table shoots a 20 g ball horizontally. When the spring is compressed 18 cm , the ball travels horizontally 5.2 m and lands on the floor 1.6 m... more

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Physics

06/13/22

physics - question

What minimum speed does a 100 g puck need to make it to the top of a 5.1 m -long, 28 ∘ frictionless ramp?

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Physics

06/13/22

How much energy can be stored in a spring with k = 500 N/m if the maximum possible stretch is 20 cm ?

How much energy can be stored in a spring with k = 500 N//m if the maximum possible stretch is 20 cm ?

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Physics Science Electrical Engineering

06/12/22

Physics question about AC generator

The AC generator rotation frequency is 16.5 Hz. The generator generates 50 Hz alternating current. How many pairs of magnetic poles this generator has?The correct answer is 3 pairs.

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Physics

06/12/22

Help My Physics Question

What are the reactive force and moment at shoulder?BW = 78KgUpper arm = 0.028BWdistance from shoulder to elbow = 33cmcenter of mass = 15 cm from the shoulderSoutheast is elbow.

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Physics

06/12/22

An apartment has the dimensions 17 m by 9 m by 6 m. The temperature is 30°C, and the relative humidity is 55 percent. What is the total mass (in kg) of water vapor in the air in the apartment?

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Explain why the emission spectra of elements show lines of different colors but inly in narrow bands

I have a physics question

Can someone help me with physics hw

Water is flowing in a pipe of varying cross-sectional area...

1b) An object 0.75 m tall is placed 3.4m in front of a convex mirror that has a focal length of -80cm. i) Calculate the image distance. ii) Calculate the image height.

Which mirror is used as rearview and sideview mirror in vehicles?

What is its velocity at the highest point?

How to find the resultant of two vectors that are perpendicular to each other?

Need Help! Thankyou

Physics Optics Help

Physics Optics Help

Physics Question Help

What is the defining law that helps Maxwell to solve the missing link between the existence of electricity and magnetism in space?

Calculate the wavelength of the resulting wave on the cable

Equation for tension in a string

Please help me with physics hw i dont understand

circuit board construction

BRAINLIEST!!! how does the electric force between two charged particles change if the distance between them is reduced by a factor of 2?

A 12 kg runaway grocery cart runs into a spring with spring constant 220 N/m and compresses it by 80 cm .

physics - question

physics - question

How much energy can be stored in a spring with k = 500 N/m if the maximum possible stretch is 20 cm ?

Physics question about AC generator

Help My Physics Question

An apartment has the dimensions 17 m by 9 m by 6 m. The temperature is 30°C, and the relative humidity is 55 percent. What is the total mass (in kg) of water vapor in the air in the apartment?

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