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Physics
Page 10
Questions (149,241)
A block and tackle having a velocity ratio of 5 is used to raise a load of 400N through a distance of 10m. If the work done
6 answers
asked by
Michael Nyame
3,624 views
A non-rotating cylindrical disk of moment of inertia I is dropped onto an identical disk rotating at angular speed w. Assuming
5 answers
asked by
Aja
4,557 views
An airplane flying east at 360 km/h passes over Pearson airport 10 minutes before a second airplane flying south at 480 km/h
4 answers
asked by
Anonymous
694 views
How much thermal energy is released when 500 g of steam at 100 degrees celsius condenses into liquid and then cools to 50
4 answers
asked by
AlphaStrike
3,127 views
If a reaction yields 2.5165 × 10^8 kJ, then how much mass was lost? (User 3.00 x 108 m/s as the speed of light)
2.30 × 10^-3 kg
4 answers
asked by
Joanne
1,748 views
A flywheel of moment of inertia 0.32 kgm^2 is rotated steadily at 120rad/s by a 50 W electric motor. (i)find the kinetic energy
4 answers
asked by
Edwin
4,692 views
Which statement best describes the charges of the particles involved in the diagram above? (1 point) Responses A neutral
1 answer
asked anonymously
65 views
A typical volume of a modern hot air balloon is 2500 cubic metres, and a typical maximum temperature of the hot air is 120
5 answers
asked by
Luis
7,329 views
The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to
7 answers
asked by
Tyger2020
2,971 views
Please help me i cant figure out what goes in the blanks and this is the last question of my gizmo... THANKS!
If the spring
5 answers
asked by
James
1,558 views
if the 5-ohm heater in problem 15 is placed with a 15-ohm heater, what current will the 15-ohm heater draw from the same power
5 answers
asked by
roland
1,852 views
Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and are attached to the post which is held
4 answers
asked by
Kishore
3,258 views
The following samples are all water. Other than the temperature, all the water samples are identical. Which of the four samples
1 answer
asked by
kali
157 views
Which analogy best describes amperage? (1 point)
diameter of a pipe through which water moves Olength of the pipe through which
3 answers
asked by
Hlo
202 views
A steel wire 40 m long is suspended between two fixed points 20 m apart.
A force of 375 N pulls the wire down at a point 15 m
4 answers
asked by
Alex
2,595 views
What happened at point C to end with D?
a The surrounding air transferred thermal energy to A and B to equalize both in D. Air is
4 answers
asked by
A
366 views
1. A spring bearing a 10-pound weight has stretched 0.5 inches. If you were to increase the weight to 15 pounds, how many inches
5 answers
asked by
John Gomez
4,442 views
when a ball falls vertically off a table it rebounds 75% of its height after each bounce. if it travels a total of 490 cm, how
4 answers
asked by
franc
4,647 views
The back end of a 160-metre-long train disappears into a 700-metre-long tunnel. Twenty seconds later
the front of the train
4 answers
asked by
Anonymous
1,258 views
the distance from the sun to earth is about 1.5x10^11 meters. suppose light travels at a speed of 3x10^8 meters per second.
7 answers
asked by
shirly
9,726 views
Three forces with magnitudes of 70 pounds, 40 pounds, and 60 pounds act on an object at angles of -30 degrees, 45 degrees, and
5 answers
asked by
Hannah
5,225 views
The gravitational force exerted by the sun keeps planets in orbit. What would happen to the force that keeps Earth in orbit if
4 answers
asked by
Okay so-
1,854 views
I have 130 liters of gas in a piston at a temperature of 250 degree Celsius. If i cool the gas until the volume decreases to 85
5 answers
asked by
mereula
3,011 views
An airplane takes off at 10:00 AM and flies a straight path at 350 km/h until 1:00 PM. Its velocity then changes to 400km/h in
4 answers
asked by
Kuhaku
948 views
How is gravitational lensing related to dark matter?
ty !
7 answers
asked by
saturnity
2,973 views
Samuel builds four electromagnets and tests them by picking up paperclips. Here are his partial results.
Coils Paperclips 8 2 16
4 answers
asked by
the real BARNY THE DINO :)
276 views
There is a 100g mass sitting on the 10cm mark, and a 50g mass sitting on the 60cm mark. Force 𝐹 acts at the 30cm mark.
6 answers
asked by
Physics Student
4,063 views
A box weighing 100 newtons is pushed up an inclined plane that is 5 meters long. It takes a force of 75 newtons to push it to
7 answers
asked by
chris
6,421 views
A stone is dropped from the deck of the bridge. The sound of the splash reaches the deck 3 seconds later. If sound travels at
5 answers
asked by
Anonymous
5,469 views
Batman was driving the Batmobile at 90 mph (=132 ft/sec), when he sees a brick wall directly ahead. When the Batmobile is 400
5 answers
asked by
Meme
2,654 views
An inductor used in a dc power supply has an inductance of 12 H and a resistance of 180 ohms and carries a current of .300 A.
4 answers
asked by
J
2,625 views
A toy rocket has a mass of 350g at launch.the force it produces is 15N and it is fired at angle of 65⁰ to the horizontal.what
7 answers
asked by
Tesnim
1,098 views
What beat frequencies are possible with tuning forks of frequencies 258, 263, and 267 Hz?
5 answers
asked by
Jim
4,045 views
A car with a mass of 1500kg starts from rest and accelerates to a speed of 18m/s in 12s. Assume that the force of resistance
5 answers
asked by
Anonymous
4,573 views
calculate the total amount of head absorbed (in kj) when 2.00 mol of ice at -30.0C is converted to steam at 140.0 C
4 answers
asked by
colonial
1,870 views
An elastic string of length 20cm extends to 24cm. When it supports a weight of 50N, the energy stored in the string is
5 answers
asked by
ayo
2,610 views
a light string 4 meters long is wrapped around a solid cylindrical spool with a radius of 0.075 m and a mass of .5 kg.a 5kg mass
5 answers
asked by
mariel
6,972 views
A 1250 kg car travelling at 60.0 km/h comes to a sudden stop in 35 m. What is the coefficient of friction acting on the brakes?
5 answers
asked by
John Appleseed
2,866 views
A uniform meter rule is balanced at 30cm mark when a mass of 50g is hanging from its zero mark. calculate the weight of the
5 answers
asked by
sidney
1,858 views
A ball of mass 500g is kicked into the air at angle of 45degree. It reaches a height of 12m. What was it's initial velocity?
7 answers
asked by
Sam
3,329 views
In a diagram of electric field lines, q1 has 9 lines going into it and q2 has 27 lines going out of it. If one of
the charges is
4 answers
asked by
Anonymous
2,107 views
A cylinder with a movable piston contains gas at a temperature of 27 degrees celsius, a volume of 1.50 meters cubed, and an
7 answers
asked by
Clay
4,182 views
The path of a particle moving in a straight line is given by s=t^3-6t^2+9t+4.
a. Find s and a when v=0. b. Find s and v when a=0.
5 answers
asked by
eyyy
2,691 views
A spiral spring extends from length 10.01m to 10.00cm when a force of 20N is applied on it. Calculate the constant force
14 answers
asked by
lola
4,624 views
Each of the four wheels of a car push on the road with a force of 4.0*10^3 N [down]. The driving force on the car is 8.0*10^3 N
4 answers
asked by
Maggie
1,725 views
In its approach to an airport runway, an airplane of mass 1.24 x 10^5 kg has a velocity of 75.5 m/s [11.1 degrees below the
4 answers
asked by
Jordge
1,492 views
A uniform solid sphere rolls down an incline. (a) What must be the incline angle (deg) if the linear acceleration of the center
4 answers
asked by
Rich
3,209 views
Ronald Johnson, who is 80.0 kg, is running at 4.00 m/s when he suddenly jumps onto a stationary playground merry-go-round at a
4 answers
asked by
J
902 views
Two point charges Q1 = 10µc and Q2 = -2µc are arranged along the x-axis at x
= 0 and x =4m respectively. Find the positions
4 answers
asked by
Mike
3,361 views
A spiral spring of natural length of 20.0cm has a scale pan hanging freely on its lower end. When an object of mass 40g is
4 answers
asked by
Grace
2,237 views
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