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Physics
Page 35
Questions (147,221)
If 150.0 grams of iron at 95.0 degrees Celcius, is placed in an insulated container containing 500.0 grams of water at 25.0
5 answers
asked by
Chloe
3,889 views
Spaceship I, which contains students taking a physics exam, approaches Earth with a speed of 0.640 c, while spaceship II, which
4 answers
asked by
Andy
3,783 views
A 1200 kg car pulls an 820 kg trailer over a rough road. The
force of friction acting on the trailer is 650 N [backwards].
6 answers
asked by
Jenuson
4,880 views
The specific heat capacity (cp) of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature of 15 grams
5 answers
asked by
GRACE
7,336 views
A loop circuit has a resistance of R1 and a current of 2.2 A. The current is reduced to 1.7 A when an additional 3 Ω resistor
7 answers
asked by
Anna
7,627 views
Find the net torque on the wheel in the figure below about the axle through O perpendicular to the page, taking a = 11.0 cm and
9 answers
asked by
Anonymous
26,651 views
A mirror on the passenger side of your car is convex and has a radius of curvature with magnitude 18 cm. (a)Another car is seen
4 answers
asked by
J
2,627 views
A bead slides without friction around a loopthe-loop.
The bead is released from a height of 18.6 m from the bottom of the
4 answers
asked by
Chelsey Maher
5,087 views
a uniform beam 6.0 metre long and weighing 4kg rests on support at p and q placed left and right 1.0 metres from each end of the
26 answers
asked by
mary
8,420 views
A block of ice is exposed to heat in such a way that the block maintains a similar shape as it metls. The block of ice is
5 answers
asked by
W
2,306 views
In a parallel circuit, how does the potential difference across the load compare with the potential difference across the power
5 answers
asked by
Anonymous
4,384 views
A string that passes over a pulley has a 0.373 kg mass attached to one end and a 0.620 kg mass attached to the other end. The
4 answers
asked by
Samantha
2,181 views
As shown in the figure below, a skateboarder starts at point A on the ramp and rises to point B, a maximum height of h = 2.89 m
5 answers
asked by
Anonymous
7,109 views
A catapult with a spring constant of 1.0 104 newtons per meter is required to launch an airplane from the deck of an aircraft
5 answers
asked by
...
3,211 views
The filament in an incandescent light bulb is made from tungsten (resistivity 5.6 x 10-8 Ù·m). The light bulb is plugged into
5 answers
asked by
james small help plz
3,648 views
A freight train has a mass of 1.5 107 kg. If the locomotive can exert a constant pull of 6.9 105 N, how long does it take to
5 answers
asked by
smh
2,945 views
Two oppositely charged spheres, with a centre to centre separation of 4.0 cm, attract each other with a force of magnitude
5 answers
asked by
Lucy
2,252 views
A 52 g mountain climber, start from rest, climbs a vertical distance of 730 m. At top, she is again at rest. In the process, her
5 answers
asked by
david
2,657 views
A circuit has R = 16.6 Ω and the battery emf is 6.50 V . With switch S2 open, switch S1 is closed. After several minutes, S1 is
5 answers
asked by
Stesson
7,948 views
a mover uses a ramp to pull a 1000 newton cart up to the floor of his truck 0.8 meters high if it takes a force or 200 newtons
7 answers
asked by
hunter
4,470 views
An object is thrown upward at v0 from the surface of a small spherical planetoid of mass M and radius R When the object is a
5 answers
asked by
colton
1,618 views
1. A cylindrical disk of wood weighing 45.0N and having a diameter of 30.0 cm floats on a cylinder of oil of density 0.850
5 answers
asked by
Francis
5,976 views
A man pulls a rope attached to a crate with a force of 120 N. If the rope makes an angle of 130 degrees with the ground, find
4 answers
asked by
Gie
3,357 views
In a computational model of the energy loss of a house, if the energy flux increases and the total area insulated increases.
4 answers
asked by
help
731 views
1. A light ray strikes a mirror at an angle of 42° from the surface of the mirror. What angle does the reflected ray make with
5 answers
asked by
need help
5,081 views
1. Using the equation for Charle's law, find an expression for T1
2. If the temperature of a certain gas is tripled from its
5 answers
asked by
Sadi
2,401 views
The wheels of a scooter have a diameter of 4.5 inches. If the person riding the scooter is traveling down hill at 15.0 mph. what
5 answers
asked by
Bob
2,499 views
two planets of masses "m" and "M" respectively. have a center to center separation of "R".At what distance from the center of
5 answers
asked by
m sani
2,311 views
"Two springs are hooked together and one end is attached to a ceiling. Spring A has a spring constant of 25N/m, and spring B has
5 answers
asked by
Stuck
2,961 views
A hockey puck of mass 0.16 kg, sliding on a nearly frictionless surface of ice with a velocity of 2.0 m/s (E), strikes a second
7 answers
asked by
Priyank
3,067 views
The Olympic diver completes 3.5 somersaults in 1.7 seconds. What is the average angular speed (in rad/s) of the diver?
5 answers
asked by
Joe
1,955 views
A ski tow operates on a slope of angle 14.9∘ of length 320m . The rope moves at a speed of 12.5km/h and provides power for 55
7 answers
asked by
Anonymous
6,158 views
Having landed on a newly discovered planet, an astronaut sets up a simple pendulum of length 1.29 m and finds that it makes 407
4 answers
asked by
dallas
2,743 views
help.
A rescue helicopter drops a package of emergency ration to a stranded party on the ground. If the helicopter is traveling
6 answers
asked by
Shahab Mirza
8,476 views
A thimbleful of water at 100 deg C has a higher temp than a swimming pool full of water at 20 deg C, but the pool has more
4 answers
asked by
lala
2,513 views
The 200kg hammer of a pile driver is lifted 10 m. Find the potential energy of the system when the hammer is at this height
4 answers
asked by
James
2,597 views
An electron is accelerated from rest to a velocity of 2.0x10^7 m/s.
a) if the electron travelled 0.10m while it was being
5 answers
asked by
Leo
3,875 views
The distance between the second and sixth crests in a wave is 75cm and one crest travels a distance of 25 cm in 3.0s . Find the
5 answers
asked by
Melissa
2,179 views
A ball rolls on a circular track of radius 0.65 m with a constant angular speed of 1.2 rad/s in the counterclockwise direction.
P
5 answers
asked by
Cooper
2,710 views
a particle moves along the y axis so that its position at any time t, for 0 is less than or equal to t which is less than or
4 answers
asked by
kriti
5,875 views
3. A person exerts a force of 55 N on the end of a door 74 cm wide. What is the magnitude of the torque if the force is exerted
4 answers
asked by
Bobby
11,675 views
When a force of 50N is applied to the free end of an elastic cord, an extension of 4cm is produced. Calculate the work done on
4 answers
asked by
Joshua
794 views
vector A has magnitude 8units and makes an agle of45°with the positive x-axis vector B also has the same magnitude of 8units
16 answers
asked by
geechu
9,833 views
How much heat, in kilojoules (kJ), is required to raise the temperature of 2.50kg Hg(l) from -20.0 to -6.0C? Assume a density of
6 answers
asked by
Bob
4,461 views
the diagram show the position of a skydiver over the past 5 sec of her descent time.
0 1 20 ft every second 2 3 4 5 drag a label
4 answers
asked by
herman
1,187 views
The radius of the Earth is approximately 6000 km. The acceleration of an astronaut in a perfectly circular orbit 300 km above
7 answers
asked by
Hannah
6,196 views
A simple pendulem is made from a bob of mass 0.040 kg suspended on a light string of length 1.4 m.keeping taut,the pendulemis
4 answers
asked by
Abdu
1,176 views
Assuming atmospheric pressure to be 1.01 x 10^5 Pa and the density of sea water to be 1025 kg/m^3, what is the absolute pressure
5 answers
asked by
N.
4,367 views
A vehicle travelling 30mph collides head-on with another vehicle travelling 50mph, the force of impact, theoretically, would be
4 answers
asked by
Alisa
1,396 views
A bungee jumper of mass 60 kg jumps from a bridge tied to an elastic rope which becomes taut after he falls 10 m. Consider the
7 answers
asked by
anon
2,622 views
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