12,726 Answered Questions for the topic physics

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?
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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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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Physics

06/11/22

A copper vat is 15 m long at room temperature (20°C). How much longer is it when it contains boiling water at 1 atm pressure?
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Physics

06/11/22

Newtons laws of motion
A cannon is fi red horizontally from a platform. The platform rests on a flat, icy, frictionless surface. Just after the shell is fired and while it is moving through the barrel of the gun, the... more
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Physics

06/10/22

An aluminum wing on a passenger jet is 27 m long when its temperature is 27°C. At what temperature would the wing be 7 cm (0.07 m) shorter
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Physics

06/10/22

If timmy is traveling 20 mph south for 2 hours. How far is he displaced

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Physics

06/10/22

A rectangular shop in the mall is 8 meters wide and 10 meters long. What is its area
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Physics

06/10/22

A rectangular shop in the mall is 8 meters wide and 10 meters long. What is its area
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Physics

06/10/22

A rectangular shop in the mall is 8 meters wide and 10 meters long. What is its area
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Physics

06/10/22

A rectangular shop in the mall is 8 meters wide and 10 meters long. What is its area
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Expert Answers •1

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