12,762 Answered Questions for the topic physics

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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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 Homeschool

06/10/22

Compute for the resistivity of the wire
1. The graph below shows the current vs. voltage characteristics (IV) graph of a filament lamp. At 4.0 V, the current of the filament lamp is?A. 8x10^-3 AB. 0.5x10^-3AC. 16x10^-3AD. Need more... more
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Physics Homeschool

06/10/22

Calculate for Electric Circuits
For items no. 17-21, refer to this figure.17. What is the equivalent resistance of the circuit?18. If the circuit is connected to a 12 V source, how much power is supplied to the circuit?19. How... more
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Physics Math Homeschool

06/10/22

Electric Circuits
1. Which of the following statements are true? (Select all applicable)a. High conductivity of a wire means that it is more capable for handling currentsb. High resistivity of a wire means that it... more
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06/10/22

What is the difference in voltage between the plates? Science
Two large parallel plates are 2.0 cm apart. The strength of the electric field between them is 100.0 N/C . What is the difference in voltage between the plates?(a) −2.0 V(b) +2.0 V(c) 0 V(d) +20 VI... more
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Physics Science Chemistry

06/10/22

Where is the image of the object? Science
An object is placed 4.0 cm to the left of a convex lens with a focal length of +8.0 cm . Where is the image of the object?(a) 8 cm to the left of the lens(b) 8 cm to the right of the lens(c) 12 cm... more
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Physics

06/09/22

Charges tend to move "downhill" in potential. "Yes" or "No".
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Physics Science

06/08/22

A 5cm pencil is placed at a distance of 20cm from a converging mirror with a focal length of 40cm. i) using formulas, calculate the distance to the image. ii) calculate the image height.

iii) find the magnification factor.
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