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Physics
Page 23
Questions (146,455)
In determining the heat capacity of a calorimeter, 50ml of water at 56*C is added to 50ml of water at 23*C. After about five
4 answers
asked by
Josh
1,964 views
Batteries are made of two metals with different electron affinities. What does the phrase “electron affinity” mean and how
5 answers
asked by
Hannah
3,645 views
A certain spring stretches 4.4 cm when it
supports a mass of 0.89 kg . If the elastic limit is not reached, how far will it
4 answers
asked by
Anonymous
3,980 views
The local football player is practicing football on top of a 25 m high hill. He kicks the soccer ball, which lands 40 m from the
5 answers
asked by
Titana
1,297 views
If a gas in a closed container is pressurized from 12 atm to 25 atm and tis original temperature was 32 degrees C, what would
4 answers
asked by
Anonymous
1,306 views
Mathew is attending a very loud concert by the discarded. To avoid permanent ear damage he decides to move farther from the
6 answers
asked by
Alan
2,154 views
2 cells, each of Emf 2v and internal resistance 0.5ohms are connected in series .they are made to supply current to a
7 answers
asked by
Odeyemi
2,619 views
How do simple machines make work easier?(1 point)
1.They decrease the distance needed between a person and an object, allowing
6 answers
asked by
wha
1,324 views
If a car whose horn emits a frequency of 500 Hz is driving toward you at 30 m/s, which frequency might be the one that you hear?
5 answers
asked by
deric
2,350 views
1. Scientists seek to acquire knowledge and understanding of the real world through the formulation, testing, and evaluation of
4 answers
asked by
Idk name here
1,518 views
The average velocity of the electrons in a conductor carrying a current of 65.5 amp is 0.0153 inches per sec.what is the
4 answers
asked by
Kenzo
2,104 views
a ball that was projected up at an angle of θ degrees with the horizontal has a flight time of 5.0s and covers a range of 49.0
4 answers
asked by
john
4,424 views
If the pressure on the surface of water in the liquid state is 30 kpa, the water will boil at... 0, 30, 70, or 100 degrees c?
5 answers
asked by
lost
3,717 views
What is the centripetal acceleration of a satellite orbiting Saturn at the location exactly on Saturn radius above the surface
4 answers
asked by
Farah
1,498 views
How is an echo formed?
A.) Sound waves travel into a soft surface. B.) Light waves go around a smooth surface. C.) Sound waves
5 answers
asked by
goodog
302 views
A football is thrown upward at an 48◦
angle to the horizontal. The acceleration of gravity is 9.8 m/s^2. To throw an 80.4 m
4 answers
asked by
Dakota
2,155 views
how high will a body rise that is projected vertically upward with a speed of 100 ft/s how long will it will take a body to
6 answers
asked by
Anonymous
2,994 views
let R=20kΩ, L=10mH, and C=40μF. Which angular frequency ω is attenuated most by this filter? (It would help you to first
4 answers
asked by
student
1,346 views
2) An aircraft lands on a runway at a speed of 40 meters per second (ms^-1) and brakes to a halt in a distance of 860m.
7 answers
asked by
Adam
3,282 views
Two liters of water has a volume of ______ cubic centimeters and a mass of _______ kilograms.
4 answers
asked by
Elisabeth
1,533 views
1. Which of these quantities is a vector?
A. Time B. Momentum C. Distance D. Speed 2. What is the representation of the momentum
11 answers
asked by
Ashly
9,778 views
Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static
11 answers
asked by
T
21,621 views
Which of the following statements correctly describes the changes that occur in a sound wave, as it passes from cool air into
9 answers
asked by
Kiki
5,050 views
A 2.0 kg mass starts from rest and slides down an inclined plane 8.0 X 10^-1 m long in .50s. what net force is acting on the
5 answers
asked by
physics
13,560 views
A child is standing on a platform of a station.
A train travelling at 30m/s takes 3.0 secs to pass the child.What is the length
7 answers
asked by
sarah
8,968 views
If a man weighs 900 N on the earth, what would he weigh on jupiter, where acceleration due to gravity is 25.9 m/s^2?
10 answers
asked by
Godwin
23,945 views
A motorist traveling with a constant speed of 15m/s passes a school-crossing corner, where the speed limit is 10m/s. Just as the
7 answers
asked by
:)
13,402 views
a boy weighing 350N runs up a flight of stairs consisting of 20 steps each 10cm high in 10 seconds. What is his power? show your
11 answers
asked by
marv
7,583 views
A spring is hung from a ceiling, and an object attached to its lower end stretches the spring by a distance d = 7.70 cm from its
4 answers
asked by
Ame
7,486 views
A box with mass 13.0 kg moves on a ramp that is inclined at an angle of 55.0∘ above the horizontal. The coefficient of kinetic
4 answers
asked by
A
7,524 views
2. At time t =0, the current to the dc motor is reversed, resulting in an angular displacement of the motor shaft given by θ =
6 answers
asked by
bruce
10,029 views
while on the moon, the Apollo astronauts enjoyed the effect of a gravity much smaller than that on earth. if Neil Armstrong
7 answers
asked by
Marissa
7,411 views
A grasshopper leaps into the air from the edge of a cliff at a 50 degree angle. He reaches a maximum height 6.74 cm above the
7 answers
asked by
Sarah
19,785 views
a student wants to perform an experiment to study the relationship between the temerature and pressure of an enclosed gas in one
4 answers
asked by
Nami
2,986 views
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 8.50 m/s, and the second lands at a speed
5 answers
asked by
Sam
5,004 views
Two forces, of magnitudes F1= 80.0N and F2= 50.0N, act in opposite directions on a block, which sits atop a frictionless
5 answers
asked by
physics please show steps
13,070 views
a 1.4 kg block slides across a rough surface such that it slows down with an acceleration of 1.25 m/s2. What is the coefficient
5 answers
asked by
ellimac
5,326 views
A small block on a frictionless horizontal surface has a mass of 2.50×10−2 Kg. It is attached to a massless cord passing
6 answers
asked by
Sarah
8,168 views
Archimedes purportedly used his principle to verify that the king's crown was pure gold, by weighing the crown while it was
4 answers
asked by
Victor
5,689 views
An object carries a charge of -8.0 uC, while another carries a charge of -2.0 uC. How many electrons must be transferred from
5 answers
asked by
Dan
7,728 views
A 0.075 kg ball in a kinetic sculpture moves at a constant speed along a motorized conveyor belt. The ball rises 1.32 m above
10 answers
asked by
Brian
12,126 views
A hollow, spherical shell with mass 2.00 kg rolls without slipping down a slope angled at 38.0 degrees. (a) Find the
4 answers
asked by
Karla
12,711 views
on a air track, a 400g glider moving to the right at 2.00m/s collides elastically with a 500g glider moving in the opposite
5 answers
asked by
Alana
3,874 views
If the resultant force acting on a 2kg object is equal to (3i+4j)N, what is the change in kinetic energy as the object moves
6 answers
asked by
ATT
7,785 views
You stand at the bottom of an 8.0-m-long ramp that is inclined at 37∘ above the horizontal. You grab packages off a conveyor
6 answers
asked by
Kallian
2,417 views
A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolutions
will it make, and what time
7 answers
asked by
joel
6,748 views
a 300kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.0m above ground. The crane that
6 answers
asked by
Delli
6,855 views
A boy of mass 50kg runs up a set of stairs of total height of 3.0m.find the work done against gravity
19 answers
asked by
izzy
5,557 views
The voltage,V, in an electrical unit is related to the current,I, and the resistance,R, by the equation V=IR. The current is
5 answers
asked by
Luis
4,938 views
The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find the wavelength of these extremes when the speed of
5 answers
asked by
Lena
9,439 views
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