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Physics
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Questions (149,062)
Use the table to answer the question.
Sample Observation 1 The drop of food coloring spreads slowly. 2 The drop of food coloring
81 answers
asked by
Daniel
26,820 views
The girl in the picture is at the highest point in swinging and starts to come down. Which statement best describes the changes
46 answers
asked by
carson
13,120 views
modeling fusion quick check
19 answers
asked by
help
4,420 views
Which describes a difference between solar wind and geomagnetic storm? Select the three correct answers
2 answers
asked anonymously
173 views
Which of the following is an example of kinetic energy transfer?
18 answers
asked by
please help
8,379 views
The difference in length between a brass and an iron is 14CM at 10°C what must be the length of the iron for this difference to
10 answers
asked by
Elia
4,937 views
A spiral spring loaded with a piece of metal extends by 10.5cm in air. When the mental is fully submerged in water, the spring
6 answers
asked by
Joker
3,988 views
Dark matter_____ absorb light,______ emit radiation, and_____ been observed directly.
3 answers
asked anonymously
309 views
The heat capacity of a material shows the amount of heat that can be taken in before the material increases in temperature.
6 answers
asked by
SPAMTON G SPAMTON
1,176 views
N1V1 = N2V2 is always positive but M1V1 may or may not be equal to M2V2,Why?
5 answers
asked by
Oliver
1,270 views
It takes a boat going upstream 3 hours to cover the same distance, as it would cover in 2 hours going downstream. What is the
7 answers
asked by
Helen
6,215 views
If a load of 100N is applied to a wire,the extension is 0.01m. Calculate the energy stored in the wire.
17 answers
asked by
Joshua
2,287 views
A giant model of a magnet is being built for a museum exhibit. What is the total surface area of the prop that will need to be
1 answer
asked anonymously
178 views
What's the scientific term for a wire that gets longer due to heat?
5 answers
asked by
Botshelo
716 views
Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and
6 answers
asked by
TWO
2,840 views
A glider on an air track is connected by springs to either end of the track. Both springs have the same spring constant,k , and
7 answers
asked by
annie
5,816 views
Why do scientists observe blueshift in certain stars?(1 point)
Stars with higher temperatures emit more light waves at the blue
5 answers
asked by
amos goresatann
2,485 views
A Particle moves along the x-axis so that at any time t>0, its acceleration is given by a(t)= ln(1+2^t). If the velocity of the
5 answers
asked by
D-MO
10,034 views
a force of 0.8N stretches an elastic spring by 2cm. find the force constant.
f e = k=? f=ke 0.8=0.02 * k k=0.8/0.02 k=40N/m
10 answers
asked by
sharon
4,779 views
Piston A has a cross section of 1200 sq.cm. While that of piston B is 950 sq.cm. with the latter higher than piston A by 1.75m.
4 answers
asked by
Jet
10,442 views
An oceanographer measured a set of sea waves during a storm and modelled the vertical displacement of waves in meters using the
5 answers
asked by
Farah
3,601 views
Stored Energy Changes I Quick Check
1. A horseshoe magnet is moved toward a pile of iron shavings. The iron shavings divide and
24 answers
asked by
Connexus Student
19,260 views
What happens when a cold spoon is placed in hot soup?(1 point)
Responses The soup’s molecules have more potential energy, so
4 answers
asked by
meli
731 views
A 30 kg table is pulled by a constant force across a rough horizontal floor with an estimated coefficient of kinetic friction
1 answer
asked by
Deadrea
172 views
Which statement correctly describes the relationship between thermal energy and particle movement?
As thermal energy increases,
79 answers
asked by
Anonymous
18,130 views
A golf ball was hit and projected in an angle of 60 degrees with the horizontal. if the initial velocity of the ball was 50m/s,
6 answers
asked by
YellowCorn
14,438 views
Ball A was carried to the top of a hill in a straight line, while ball B was carried in a longer, zigzag path. At the top of the
6 answers
asked by
carson
4,259 views
A receiving antenna becomes misaligned by 30° to its original position. The power of the received signal in this new position
10 answers
asked by
Ramesh
5,488 views
A body is displaced through a certain distance x by a force of 30 newtons.if the work done is 100 joules and the displacement is
21 answers
asked by
CHIDIEBERE
8,069 views
Hi guys how do I calculate residual driving force, driving force is 3000 air resistance is 370 N and rolling resistance is 160
7 answers
asked by
Anonymous
2,336 views
A uniform half metre rule is freely pivoted at the 15cm Mark and it balanced horizontally when a body of mass 40g is hung from
7 answers
asked by
Deborah
8,316 views
A rectangular of mass 10kg rest on an inclined plane with a coefficient of static friction of 0.55 and coefficient of kinetic
7 answers
asked by
elizabeth luhoya
2,781 views
which term best describes the force exerted on the structural parts of a building?
a. density b. load c. weight d. gravity
7 answers
asked by
no name
712 views
Two relays each with 20 ohms resistance and 0.16 henry inductance are connected in series. What is the equivalent impedance?
10 answers
asked by
student
5,868 views
How do electrons flow through an electric circuit?(1 point)
Responses The device that is using the electricity pulls electrons
4 answers
asked by
A
285 views
A catapult launches a boulder with an upward velocity of 92 m/s. The height of the boulder, h, in meters after t seconds is
9 answers
asked by
Anonymous
7,375 views
An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be
5 answers
asked by
Emperor
1,704 views
yall know the anwsers to the LESSON 13
Non-Contact Forces Unit Test?? heres the first question Which statement explains how the
67 answers
asked by
HELP WWITH A TEST
4,636 views
A stone is suspended from the free end of a wire that is wrapped around the outer rim of a pulley, as shown in the figure (see
4 answers
asked by
Anonymous
12,459 views
A 52 kg woman is standing in a 26 kg cart that is moving a velocity of 1.2 m/s S. The woman staying rest then moves at a
4 answers
asked by
Anna
2,264 views
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = –0.04x2+
5 answers
asked by
Fiddle sticks!
1,925 views
You are fishing in a boat anchored in a bay. You notice that the current is in the eastern direction with small wave crests that
4 answers
asked by
soggy bob ross
574 views
What happens when thermal energy is applied to an ice cube
It's water molecules lose kinetic energy so the ice cube melts It's
3 answers
asked by
Hi
346 views
How much air is needed to fill a basketball with a diameter of 9 inches? Use 3.14 as an approximation for pl. Round your answer
1 answer
asked anonymously
271 views
A stone is thrown up with a velocity of 20 m/s. While coming down, it strikes a glass pan, held at half the height through which
5 answers
asked by
Adnan
1,684 views
In which case would the kinetic energy of particles be increasing? (1 point)
Metal is melted at 1,300°C. Metal is at room
58 answers
asked by
Daniel
23,434 views
How does the average kinetic energy of the molecules of water compares to the molecules of petrol
3 answers
asked by
Montshisi
150 views
What creates the magnetic force in an electromagnet?(1 point)
Responses electric current iron or steel core coiled wire battery
4 answers
asked by
456789
238 views
a model rocket is launched from a roof into a large feild. The path of the rocket can be modeled by the equation
5 answers
asked by
5,445 views
5. A student has the following data: V1 = 822 mL, T1 = 75°C and T2 = -25°C. He calculates V2 and gets -274 mL is this value
4 answers
asked by
Evie
4,230 views
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