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Two currents from different sources flow in opposite directions through a resistor. I1 is
measured as 79 mA on a 100 mA analog
5 answers
asked by
mary
4,391 views
A stationary 2.0 kg object is located on a table near the surface of the earth. The coefficient static friction between the
5 answers
asked by
pam
3,505 views
you are working in your kitchen preparing lunch for your family. you have decided to make egg salad sandwiches and are boiling
4 answers
asked by
maya
1,338 views
A coconut thrown horizontally at 20 m/s from the top of a hill 63 m high. How far from the base of the hill does the coconut hit
5 answers
asked by
harry
1,581 views
Martha drops a 1 kg rock off the top of Black Oak Canyon which is 100m deep. What is the KE of the rock the instant
before it
5 answers
asked by
POTENTIAL & KINETIC ENERGY PRACTICE
2,496 views
A stone is dropped from the roof of a high building. A second stone is dropped 1.00s laterHow far apart are the stones when the
4 answers
asked by
cuzer
4,835 views
You are given two waves, a transverse wave that moves to the right f1(x) and a transverse wave that moves to the left f2(x), on
4 answers
asked by
rama
6,076 views
an ideal fluid flows through a pipe hat runs up an incline and gradually rises to a height H. The cross sectional area of the
4 answers
asked by
john
762 views
The magnitudes of two vectors vector A and vector B are 20 units and 5 units, respectively. What are the largest and smallest
5 answers
asked by
mary
3,496 views
Three vectors are shown in the figure below, but they are not drawn to scale. The sum of the three vectors is R = F1 + F2 + F3.
7 answers
asked by
joy
2,348 views
1) A 2 . 3 kg object moving at 7.3 m/s collides inelastically with a 4.0 kg object which is initially at rest.
What percentage of
5 answers
asked by
quaviz
2,967 views
The figure shows the y-position (in blue) of a particle versus time.
(a) What is the average velocity of the particle during the
4 answers
asked by
joy
5,279 views
A force F⃗ = 12 N i^ − 10 N j^ acts on an object. How much work does this force do as the object moves from the origin to
5 answers
asked by
kolam
9,186 views
Planet A and planet B are in circular orbits around a distant star. Planet A is 4.5 times farther from the star than is planet
4 answers
asked by
ozer
6,434 views
A pair of students are lifting a heavy trunk on move-in day. (Figure 1) Using two ropes tied to a small ring at the center of
4 answers
asked by
physic ----please help
3,496 views
The volume of brass increase as a result of heat by 0.6%, by how many degree was the vessel heated
4 answers
asked by
isaav
1,000 views
During a visit to New York City, Lil decides to estimate the height of the Empire State Building (see figure below). She
5 answers
asked by
joy
4,886 views
you are designing a diving bell to withstand the pressure of sea water at a depth of 250m. a)what is the quage pressure at the
4 answers
asked by
ted
3,900 views
an electric drill rated at 400 W is connected to a 240 v. how much current does it draw?
explain your answer
5 answers
asked by
sam
1,347 views
Part 1
A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0
5 answers
asked by
ally
4,275 views
A ball is launched horizontally at 5 m/s from the top of a 45 m tall building. A man stands at rest 6 m from the base of the
3 answers
asked by
Natalie
624 views
You are traveling at a constant speed υM, and there is a car in front of you traveling with a speed υA You notice that
5 answers
asked by
kolam
2,309 views
An insulating solid sphere of radius a = 0.5 m. If the sphere carries a total positive charge of 15 nC, calculate the magnitude
5 answers
asked by
johnny vrl
1,203 views
two particles moving along x-axis in the same direction with uniform velocity is 8 metre per second and 4 metre per second
7 answers
asked by
ruchiket
3,374 views
Two blocks are connected by a rope that passes over a massless and frictionless pulley as shown in the figure below. Given that
m
5 answers
asked by
joy
8,403 views
The speedometer of truck #1, moving to the east, read 90 km/h. It passes truck #2 that moves to the west at 90 km/h. What is the
3 answers
asked by
kayla
387 views
A hockey player strikes a puck that is initially at rest. The force exerted by the stick on the puck is 950 N, and the stick is
4 answers
asked by
glenmore
2,965 views
An in-ground swimming pool has the dimensions 20 m x 15 m. It is filled with water to a uniform depth of 3.00 m.What is the
5 answers
asked by
Anonymous
2,961 views
Three vectors A,B,and C are related to one another such that
5A + 6B = 60C. A fourth vector D exists such that 30C + D = A.
3 answers
asked by
joy
805 views
An elastic string stretches to a total length of 30cm under a load of 500N. With an additional load of 100N, the string
4 answers
asked by
Abidoye
880 views
1. A surface charge can be produced on insulators by
a. grounding b. induction c. polarization d. contact 2. Unlike insulators,
4 answers
asked by
Jannie
3,273 views
by how many newtons do you increase the weight of your car when you fill up your 11.5 gal gas tank with gasoline
a gallon is
3 answers
asked by
paul
1,815 views
two figure skaters, one weighting 625N and the other 725N,push off against each other on frictionless ice. a) if the heavest
4 answers
asked by
kris-
3,224 views
A 0.20 kg ice cube at 0.0° C has sufficient heat added to it to cause total melting, and the resulting water is heated
4 answers
asked by
kristin
2,311 views
a ball of mass 1oog falls from a height of 5m onto a floor and rebounds to a height of 3m . what energy is lost as a result of
2 answers
asked by
antiah
562 views
The fan blades on a jet engine make one thousand revolutions in a time of 87.6 ms. What is the angular frequency of the blades?
4 answers
asked by
nada
2,875 views
the speed boat has a acceleration of 2.0 m/s2 if the initial velocity of the boat is 6.0 m/s2. find the boat displacement after
5 answers
asked by
junrex
1,061 views
Q: a model rocket was launched and measurements of its height and horizontal distances from the launched pad were taken as shown
3 answers
asked by
Aya Muhammed
683 views
The position function x(t) of a particle moving along an x axis is x = 6.00 - 8.00t2, with x in meters and t in seconds. (a) At
3 answers
asked by
sara
3,548 views
Suppose a block of lead of mass 0.4kg at temperature of 95°C is dropped in 2kg of water originally at 20°C in a container.
7 answers
asked by
stanis frank
1,531 views
a swimmer is capable of swimming at 1.4ms in still water how far downstream will he land if he sweams directy across a 180M wide
4 answers
asked by
Anonymous
2,006 views
A uniform rule balances horizontally on a knife edge at 55cm mark,when an object of mass 1.0kg is placed at the 5cm mark,it
3 answers
asked by
nike
390 views
An object of mass 1.5 kg rests on a shelf where it has a gravitational potential energy of 7 joules. An object of mass 4.5 kg is
4 answers
asked by
roxy
2,457 views
Hi! need help please thank you so much.
Question:(a) Calculate the absolute pressure at the bottom of a freshwater lake at a
2 answers
asked by
Chan
741 views
A sensitive gravimeter at a mountain observatory finds that the free-fall acceleration is 7.00×10^-3 m/s^2 less than that at
7 answers
asked by
peggy
3,118 views
Explain the term 'artificial radio isotopes'.
3 answers
asked by
Dibash
458 views
A long jumper's take-off velocity is 10 m/s at an angle of 20o to the horizontal. His centre
of gravity is 1 m above the ground
3 answers
asked by
intan
935 views
Calculate the pressure exerted on the ground by a79kg person standing on one foot. Assume that the bottom of the person's foot
6 answers
asked by
steve
6,390 views
Which of these diagrams may possibly correspond to the situation at point B on the motion diagram?
Type, in increasing order, the
4 answers
asked by
padi
3,621 views
a tank contains 26.0 kg of oxygen gas at a gauge pressure of 8.70 atm. if oxygen is replaced by helium, how many kilograms of
4 answers
asked by
yuri
5,980 views
Starting from rest, a car accelerates at 2.5 m/s^2 up a hill that is inclined 5.4 ^\circ above the horizontal.
how far the car
4 answers
asked by
Anonymous
5,423 views
If you run a complete loop around an outdoor track(400m), in 100 second,what is your average velocity?
3 answers
asked by
syida
1,315 views
You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises
3 answers
asked by
Anonymous
4,333 views
two point charges are placed on the x axis as follows:
charge q1 +4.00nc is located at x = 0.200m, and charge q2 = +5.00nc is at
4 answers
asked by
yanis
1,479 views
what is a wave?
3 answers
asked by
alax
549 views
3) A shell is fired from ground level with a muzzle speed of 350 ft / s and elevation and angle
of 60 . Find (a) parametric
4 answers
asked by
jack
1,287 views
Suzie (of mass 58 kg) is roller-blading down
the sidewalk going 36 miles per hour. She notices a group of workers down the
3 answers
asked by
jay
821 views
In Concept Simulation 10.2 you can explore the concepts that are important in this problem. Astronauts on a distant planet set
4 answers
asked by
nada
1,641 views
A cross- country skier skis 7.40km in the direction of 45⁰ East of South, then 2.8 km in the direction 30⁰ North of East,
3 answers
asked by
helen
1,325 views
A figure skater is spinning at a rate of 1.7 rev/s with her arms outstretched. She then draws her arms in to her chest, reducing
3 answers
asked by
femi
948 views
The windpipe of one typical whooping crane is 5.3 feet long. What is the fundamental resonant frequency of the bird's trachea,
1 answer
asked by
Maka
965 views
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 8.50 m/s at an angle of
1 answer
asked by
mark
753 views
The vectors that are shown in the figure below. The magnitudes are F1 = 1.81f, F2 = f, and F3 = 2.00f, where f is a constant.
3 answers
asked by
joy
882 views
Three vectors are shown in the figure below, but they are not drawn to scale. The sum of the three vectors is
R = F1 + F2 + F3.
4 answers
asked by
joy
2,099 views
A circus performer stands on a platform and throws an apple from a height of 49 m above the ground with an initial velocity
v0 as
4 answers
asked by
joy
2,153 views
An arrow is fired with initial velocity v0 at an angle θ from the top of battlements, a height h above the ground. (Assume θ
4 answers
asked by
joy
3,084 views
Three forces act on an object with
F1 = (6.03i + 11.17j) N and F2 = (2.19i − 13.53j) N. If the net force on the object is zero,
4 answers
asked by
joy
2,129 views
A student takes the elevator up to the fourth floor to see her favorite physics instructor. She stands on the floor of the
3 answers
asked by
joy
3,483 views
A 5 kg object is moving downward at a speed of 12
3 answers
asked by
Anonymous
457 views
1.What is the gravitational force between two trucks, each with a mass of 2.0 x 10^4 kg, that are 2.0 m apart? (G = 6.673 x
3 answers
asked by
Jan
1,507 views
What does "seven earths" as mentioned in surah al-Talaq acctually mean?
It means that, according to the Quran, Allah created
1 answer
asked by
suhana
470 views
What does “seven earths" as mentioned in surah at-Talaq actually mean?.
what is each cointing on earth? please give detail
1 answer
asked by
suhana
376 views
Figure 1 shows a snowmobile accident
1 answer
asked by
sam
392 views
A police officer arrives at the scene of the collision of the two snowmobiles (Figure 1) to find both drivers unconscious. When
3 answers
asked by
sam
562 views
A police officer arrives at the scene of the collision of the two snowmobiles (Figure 1) to find both drivers unconscious. When
1 answer
asked by
sam
479 views
Assuming uniform density, how much would 1.1 cubic centimeters of neutron star material weigh on the surface of the earth?
You
1 answer
asked by
x
1,132 views
Neutron stars are extremely dense objects with a mass comparable to the mass of the sun but a radius of only several thousand
1 answer
asked by
x
621 views
1)a pitched ball is hit by a batter at a 45 degree angle and just clears the outfield fence,98m away. assume that the fence is
4 answers
asked by
jamie
2,264 views
What exactly is transmutation?
2 answers
asked by
Will
461 views
I need help with this question
How many calories does a 75-kg woman use in walking up stairs to a point that is 20m higher?
3 answers
asked by
kadyn
388 views
A rotating star expands to become a red giant, increasing its average radius from one million km to 100 million km without
1 answer
asked by
Madison
362 views
a car travels in a straight line for 3 h at a constant speed of 53 km/h. what is the acceraleration? answer in units of m/s2.
1 answer
asked by
ash
311 views
A solid shaft of 65mm outside diameter and a hollow shaft of 85mm outside diameter are connected by 6 bolts with the mean pitch
1 answer
asked by
Michel
454 views
A turnbuckle is needed to apply an 8kN force on a cable. If the efficiency of the turnbuckle is 40% and the force applied is
1 answer
asked by
luc
1,116 views
A spring has stiffness of 100Nmm, the initial compression of the spring is 15mm, and it is then compressed to 65mm.
•1Nmm =
1 answer
asked by
daniel
281 views
Two bodies hang on a string 2.1m long. The two bodies have a mass of 3.75kg and 2.4kg respectively. If the 3.75kg mass is raised
5 answers
asked by
Henry
519 views
Jules Verne in 1865 proposede sending men to the moon by firing a space capsule from a 220-m-long cannon with final velocity of
1 answer
asked by
Laura
386 views
Hi, could you help me please
Question: A tortoise can run with a speed of 0.12 m/s and a hare can run 20 times as fast. in a
4 answers
asked by
Chan
1,304 views
Hi! Question:A ball is tossed from an upper-story window of a building.The ball is given an initial velocity of 7.80m/s at an
3 answers
asked by
Chan
1,480 views
Hi!Question: A river flows due east at 1.70m/s.A boat crosses the river from the south shore to the north shore by maintaining a
2 answers
asked by
Chan
726 views
Hi!Question:The helicopter view in the fiure below shows two people pulling on a stubborn mule. Asume that F1 is 110N, and F2 si
2 answers
asked by
Chan
561 views
A projectivle is launched with an initial speed of 40m/s at an angle of 35 degree above the horizontal. The projectitile lands
3 answers
asked by
Chan
1,102 views
Jules Verne in 1865 suggested sending people to the Moon
by firing a space capsule from a 220-m-long cannon with a launch speed
2 answers
asked by
aRd
1,095 views
Hi!An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a
3 answers
asked by
Chan
662 views
Hi!Question:Two packing crates of masses m1 = 10.0 kg and m2 = 6.50 kg are connected by a light string that passes over a
5 answers
asked by
Chan
816 views
Hi!Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 439 N(10degree) and F2
1 answer
asked by
Chan
718 views
A 660 N cat burglar is supported by cables in the figure below. Assume the angle è of the inclined cable is 36.0°.
Find
3 answers
asked by
Chan
1,454 views
1) if you live 10.0 km from your school and the bus takes 0.53 h to reach the school driving due east, what is the average
3 answers
asked by
Shelby
1,159 views
An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley
2 answers
asked by
Chan
1,188 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 439 N and F2 = 365 N.
2 answers
asked by
Chan
604 views
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