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Physics
Page 3
Questions (147,221)
When white light strikes this object, the light is completely absorbed, with none of it transmitted or reflected. Which type of
13 answers
asked by
who dat
2,009 views
A blacksmith strikes a piece of metal with a hammer repeatedly. The metal slowly begins to glow as the temperature increases,
15 answers
asked by
PLZ HELP
4,693 views
A particular circuit is made up of a battery, a switch, a buzzer, and wires connecting the components. All of the components are
5 answers
asked by
:)
1,887 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
4,738 views
at the bottom of a loop the speed of an airplane is 400 mph. this causes a normal acceleration of 9 g ft/sec^2, determine the
5 answers
asked by
aaa
4,358 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
5,823 views
Which of the following interactions in the data set below will have an attractive electrical force?
Interaction Object 1 Charge
5 answers
asked by
A
505 views
What is kinetic energy
12 answers
asked by
Arnny
2,490 views
A diagram is drawn showing a swing set with a swing pulled backward prior to release. The diagram shows how the swing will move
7 answers
asked by
Help
3,838 views
Sally puts on wool socks and rubs her feet on a nylon carpet. How does static electricity build up in Sally?(1 point)
Responses
10 answers
asked by
Hi
1,246 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
5,781 views
the lowest frequency we can hear is about 20hz. calculate the wavelength associated with this frequency for sound that travels
5 answers
asked by
charlie
2,008 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
268 views
which scenario best describes a scientist who is studying thermal energy
she works on a team ,with each member carrying out all
7 answers
asked by
!
680 views
a bicyclist rides off a flat roof at 13.4m/s, the roof is 3.6m above the ground, how far from the edge of the building does the
5 answers
asked by
susan
1,922 views
The public transportation department measures the distance from a location using displacement vectors. To ride the bus to work
6 answers
asked by
girly girl
2,235 views
A player throws a ball at an initial velocity of 36 m/s. The maximum distance the ball can reach (assume ball is caught at the
11 answers
asked by
Yass
13,965 views
Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the
5 answers
asked by
Jobs
3,423 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
686 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
2,769 views
Explain the metal/laundry line which hang droop on a warm day in kinetic molecular model
5 answers
asked by
Ompabaletse
232 views
A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to
22 answers
asked by
Student 11
9,112 views
A ball of mass 0.2 kg strikes a force sensor and sticks to it. Just before impact the ball is travelling horizontally at a speed
7 answers
asked by
flirtyme
10,647 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
5,465 views
A child pulls a wagon by the handle along a flat sidewalk. She exerts a force of 80.0 N at an angle of 30.0 above the horizontal
5 answers
asked by
Rosie
4,433 views
62kg person in an elevator is moving up at a constant speed of 4.0m/s for 5.0s
a) calculate the work done by the normal force on
4 answers
asked by
lomonoyan
6,071 views
A diver leaves a 3-m board on a trajectory that takes her 2.7m above the board and then into the water 2.9m horizontally from
5 answers
asked by
PLS HELP!!
6,878 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
155 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
5,412 views
a rope is strung between two cliffs. A mountain climber weighing 100 kg is halfway across the rope when the rope forms an angle
7 answers
asked by
Kathleen
5,074 views
A person drive an automobile with a mass of 450 kilograms at a velocity of 26 meters per second. The driver accelerates to a
7 answers
asked by
maria
14,739 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
4,873 views
What mass of ice at -14°C will be needed to cool 200cm³ of an orange drink(essentially water) from 25°C to 10°C?
7 answers
asked by
ayo
4,876 views
a uniform pole 20 ft. long weighing 80 lbs is supported by a boy 2 ft. from end a and a man 5 ft. from end b. at what point
4 answers
asked by
Anonymous
6,488 views
A diamond's index of refraction for red light, 656 nm is 2.410 while that for blue light, 434 nm, is 2.450. Suppose white light
5 answers
asked by
Anonymous
11,885 views
The acceleration of a particle at a time t moving along the x-axis is give by: a(t) = 4e^(2t). At the instant when t=0, the
5 answers
asked by
Dave
5,087 views
Resistors R1, R2, and R3 have resistances of 15.0 Ohms, 9.0 Ohms and 8.0 Ohms respectively. R1 and R2 are connected in series,
5 answers
asked by
Rony
11,024 views
Maria throws a ball straight up with an initial velocity of 10 m/s.
What is its velocity at the highest point? What is its
7 answers
asked by
Joyce
14,220 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
10,386 views
N1V1 = N2V2 is always positive but M1V1 may or may not be equal to M2V2,Why?
5 answers
asked by
Oliver
1,250 views
A hydraulic lift system has an input piston with an area of 0,5 m2 and an output piston whith an area of 2 m2.
What force is
5 answers
asked by
oreneile michelle malwetse
1,734 views
Which scenario shows conduction? (1 point)
O Air above a pot of simmering soup rises, forcing cooler air downward O Hot soup
4 answers
asked by
I.D.C.I.I.C.I.S.S.I.N.T.D.W.H.T.B.D.
533 views
Alpha Particles Emission Quick Check
A process in which a large nucleus splits into two or more parts is called _. A. Radioactive
7 answers
asked by
Samado
8,000 views
Pepe and Alfredo are resting on an offshore raft after a swim. They estimate that 3m separates a trough and an adjacent crest of
5 answers
asked by
Zoey
3,768 views
A horizontal pipe has a cross sectional area of 40.0 cm^2 at the wider portions and 10.0 cm^2 at the constriction. Water is
7 answers
asked by
Jen
2,521 views
On Earth, the gravitational force of a certain military drone is 6.0 kg. What is the helicopter's gravitational force if it is
1 answer
asked anonymously
217 views
Sally puts on wool socks and rubs her feet on a nylon carpet. How does static electricity build up in Sally?(1 point)
Responses
4 answers
asked by
the real BARNY THE DINO :)
1,001 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
9,974 views
A machine has a velocity ratio of 6 and an efficiency of 75%. Calculate the effort needed to raise a load of 90N
7 answers
asked by
Mojeed
2,840 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
2,742 views
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