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Physics
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A uniform rod of 1m long of mass 50g is supported horizontally on two knife edges places 10cm from it ends.what will be reaction
3 answers
asked by
Adetoun
1,602 views
Sinking Object. A stone has a mass of 1.0kg and density 5000kg/m³ is dropped in water. It crossed the surface of the water with
2 answers
asked by
Anonymous
961 views
To determine the velocity of a pellet fin a gun.a piece of plasticine of mass 50kg is balanced at the edge of the table such
2 answers
asked by
Ola
572 views
A boy climbs to the roof of his house and drops a 0.40 kg rubber bll from the 7.5-meter peak of the house. how fast will the
1 answer
asked by
kristine
405 views
Which of the following are acceptable units for the electrostatic force? Choose all that apply.
W lb oz Ω C V A N kW�h tons
3 answers
asked by
Cameron
777 views
A piece of aluminum is made with a cavity inside the aluminum. To find the volume of the cavity the piece of aluminum is
1 answer
asked by
Anonymous
663 views
A piece of aluminum is made with a cavity inside the aluminum. To find the volume of the cavity the piece of aluminum is
3 answers
asked by
physics
1,254 views
Two forces, 395 N at 11◦
and 344 N at 34◦ are applied to a car in an effort to accelerate it. (3049 kg is the car) What is
2 answers
asked by
Nic
925 views
Calculate the resultant force if a girl pushes a car 30N east and a boy 55N west.
1 answer
asked by
Ernest
439 views
The primary coil of a transformer has 739 loops. The secondary coil has 953,677 loops. The primary coil has a 76 A current and
2 answers
asked by
Cameron
619 views
An object a is moving 10m/s and B is moving with 5m/s in the same direction of positive x-axis. A is 100m behind B has shown.
3 answers
asked by
Anonymous
709 views
A 85 kg man weighs 833 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 18% of his
2 answers
asked by
Kelly
690 views
A wave travels at a speed of 34 cm/s. It’s wavelength is 18 cm. What is the period of the wave?
0.75 s 1.2 s 0.66 s 0.53 s
3 answers
asked by
GlowBaby
988 views
The speed of sound waves in air at 300K is 332 m/s. At what temperature will the speed be 574 m/s?
1 answer
asked by
Mini
487 views
The base of a record player is a disk that has a mass of 2 kg and a diameter of 34 cm. A child spins it so it rotates at a
1 answer
asked by
anonymous
740 views
In a series circuit there is 12V running with 3 bulbs with the following: 1Ω, 2Ω, and 3Ω.
Calculate the potential
4 answers
asked by
physics help
2,589 views
The wave function of a standing wave is y(x,t)=4.44mmsin[(32.5rad/m)x]sin[(754rad/s)t].
A. For the two traveling waves that make
4 answers
asked by
Ashlyn
4,395 views
A laser produces light of wavelength lambda. The light is directed through two splits that are separated by a small distance. On
4 answers
asked by
GlowBaby
674 views
Your house has a voltage of 120V. You want to estimate how much energy (in Joules) you use one morning. You wake up at 7am and
2 answers
asked by
physics help
545 views
A battery (ε= 10.0V, r = 0.50Ω) is connected to three light bulbs in series (R1= 15.0Ω, R2= 21.0Ω, R3= 24.0Ω). Calculate
2 answers
asked by
kitty
632 views
A battery (ε= 10.0V, r = 0.50Ω) is connected to three light bulbs in parallels (R1= 15.0Ω, R2= 21.0Ω, R3= 24.0Ω). Calculate
4 answers
asked by
happiness
640 views
Two light bulbs are connected in series. The resistance of the filament of the first light bulb is 230Ω. The potential
3 answers
asked by
exo-L
686 views
A battery (ε= 6.20V, r = 0.100Ω) is connected to three light bulbs in parallels (R1= 6.00Ω, R2= 9.00Ω, R3= 18.0Ω).
a)
3 answers
asked by
GUCCIxLV
776 views
Which of the following would NOT be considered a mechanical wave?
Surface wave on the ocean Radio wave transmitted from a
2 answers
asked by
GlowBaby
720 views
a block of mass m=10kg is released from rest on a frictionless incline of angle=30°. Theass can be compressed 2.0cn by a force
4 answers
asked by
Edouina Alice
1,391 views
PLEASE HELP! Specific hints would help alot
A train blows its whistle to warn traffic of its approach. The sound waves are moving
2 answers
asked by
Latoya
599 views
At what height above the ground must a body of mass 10kg be situated in order to have potential energy equal in value to the
5 answers
asked by
Rotimi oluwafunmilayo
822 views
A 5.8 kg mass, M1 is on a horizontal frictionless table. A horizontal string is attached to M1 and it passes over a pulley at
2 answers
asked by
Sarah
542 views
When a high-speed passenger train traveling at 161 km/h rounds a bend,the engineer is shocked to see that a locomotive has
3 answers
asked by
Mapherson
1,530 views
Momentum and Impulse
A good way to insure that an egg dropped onto a flexible surface will not break is to increase/decrease the
4 answers
asked by
Janessa
650 views
An archer shoots an arrow horizontally at a target 15 m away. the arrow is aimed directly at the centre of the target, but it
2 answers
asked by
Kk
821 views
Two cars are traveling at the same constant speed v. Car A is moving along a straight section of the road, while B is rounding a
3 answers
asked by
Anonymous
871 views
if two objects each with a mass of 3.7x10^3 N produce a gravitational force between them of 4.8x10^-6 N. what is the distance
1 answer
asked by
Abby
391 views
A blood sample placed in a centrifuge is subjected to a force of 4.8 10-11 N when the centrifuge is operated at 126 rev/s. What
4 answers
asked by
Kiki
1,422 views
A cannon ball is projected so as to attain a maximum range. Find the maximum height attained if the initial velocity is U.
4 answers
asked by
John
916 views
So I have this lab where one of the questions asks to find the average acceleration (m/s^2)
The formula is a=v2-v1/change in time
4 answers
asked by
John
417 views
A body whose mass is 40kg runs up a flight of 30steps each 150mm high in 6seconds find the average power developed (take
4 answers
asked by
Anonymous
1,339 views
Two forces F1 and F2 act on a particle. F1 has magnitude 8N and in direction 090 degrees. Find the magnitude and direction of
2 answers
asked by
Kemmey
724 views
A mountain climber (m1= 75kg) hangs vertically from a cliff, tied to her friend standing on an inclined plane at 22° degrees
2 answers
asked by
Megan
805 views
Q3: Block of masses M1 and M2 are connected by a light string. The coefficient of friction between M1 and the table surface is
3 answers
asked by
Alieu
811 views
A car traveling at constant speed of 55 km/hr on a circular track. is the car accelerating?
3 answers
asked by
Praise
667 views
a piece of charcoal containing 25.0g of carbon is found in some remains of ancient city. The sample shows carbon 14 activity R
2 answers
asked by
Harrison
582 views
A lady drives 130km north and then 80km east, calculate the resultant displacement of the lady
3 answers
asked by
Keidy
527 views
A particle has velocities 1m/s ,2m/s, 3√3m/s and 4m/s inclined at an angle of 0•, 60•,150• and 300• respectively to
4 answers
asked by
Francisca
649 views
A squid can propel itself by taking water into its body and then expelling it. A 0.60 kg squid expels 0.30 kg of water with a
2 answers
asked by
Nataly
944 views
A generator’s maximum is 220 V. What is the rms potential difference?
I believe the answer is 160. A. 110 V B. 150 V C. 160 V
7 answers
asked by
Chris
1,009 views
A machine with v.r of 5 requires 1000No of work to raise a load of 500N through a vertical distance of 1.5. ( a ) find the
6 answers
asked by
Reagan
3,332 views
Two spherical objects are separated by a distance of 2.70 × 10-3 m. The objects are initially electrically neutral and are very
1 answer
asked by
Brandon
661 views
A 2.50-kg object is moving along the x -axis at 1.60 m/s. As it S S passes the origin, two forces F 1 and F 2 are applied, both
4 answers
asked by
Jay
1,663 views
You push a 33-kg table across a 6.2-m-wide room. In the process, 1.5 kJ of mechanical energy gets converted to internal energy
2 answers
asked by
Jay
969 views
A spring 20cm long is stretched to 25cm by a load 5N. What will be it's length when stretched by 100N assuming that the elastic
4 answers
asked by
Joseph
615 views
In a Young's Double Slit experiment, the separation of four bright fringes is 2.5mm, the wavelength of light used is 6.2*10^-7m.
3 answers
asked by
A GOODSTUDENT
768 views
A horse with the mass of 1131 kg pull on the rope attached to a pulley to lift a 58 kg stone up a wall. If the wall is 14.1 m
1 answer
asked by
Daisy
410 views
A drop of oil of 10^10m spread out on water to make a circular film of radius 10^1m. What is the thickness of the film.
5 answers
asked by
Ebigbo
1,278 views
the frequency of a wave having wavelength 20cm and velocity 0.5m/s is
3 answers
asked by
Poppy
665 views
the tension in a sonometet wire is tripled. the ratio of the new frequency to the initial frequency is
1 answer
asked by
Poppy
421 views
a concave lens of focal length 15cm forms an image 1/3 the size of the object. the object distance is
1 answer
asked by
Poppy
725 views
What is the magntiude of force on a particle of mass 20kg with a displacement function S = 12.5t + t^2?
1 answer
asked by
Poppy
371 views
A force of 400N is applied to a brass of length 1.9m and cross-sectional area 1.2*10^11, find the extension of the brass?
1 answer
asked by
Bianca
426 views
What is the total kinetic energy of 0.5 mol of an ideal monatomic gas confined at 8dm³ at 200kpa?
1 answer
asked by
Aisha🙏
912 views
Calculate the amount of copper deposited in a zinc/Copper electrode of electrolytic cell when 2.5A of electric current is passed
2 answers
asked by
Ibrahim Badamasi
600 views
4. In general, the electric force is directly related to the magnitude (strength) of the charges. This means that as the
2 answers
asked by
Katato
676 views
an object 40 cm from a converging lens of focal length 20 cm moves the velocity of 5 cm per second towards the less calculate
4 answers
asked by
Dogy dogy🐕
1,159 views
a body x mass of 0.2kg moving vertically upwards has its velocity increased uniformly from 10m/s to 40m/s in just 4 sec.
neglecti
2 answers
asked by
Dogy dogy🐕
587 views
given that the voltage of the dimeat8c supply is represented by V=311 Sin 314.2t. calculate the frequency of the AC supply (
1 answer
asked by
Dogy dogy🐕
344 views
Two identical waves traveling in the same direction are superimposed. What should be the phase difference between the waves for
4 answers
asked by
Aisha🐩
536 views
Please help me to answer this physics question
In an experiment, lead shot contained in a vertical cardboard cylinder falls
3 answers
asked by
Aisha🐩
516 views
Use graph to find the resultant of each set of displacements?
110KM at 50 degrees north of east, then 170 km at 30 degrees east
2 answers
asked by
PLEASE HELP ELA
654 views
A water bath contains 15kg of water at 50°C. If hot and cold taps are turned on such that they deliver water at the rate of
2 answers
asked by
Cathy bens🐈
760 views
The relationship between volume V, pressure P, and absolute temperature T of an ideal gas is PV=xT Where x is a constant. The
3 answers
asked by
Rebecca.
583 views
a bar magnet whose radius is 20 cm from its center is used to search for an iron pin of the magnetic lines from around the
1 answer
asked by
Rebecca.
483 views
calculate the work done by a bricklayer who lifted cement block of mass 10kg from the floor to a height of of 2.5m (acceleration
4 answers
asked by
Rebecca.
970 views
A cannonball is fired horizontally from the top of a 63 m high cliff. It lands on an invading ship that is 430 m away from the
3 answers
asked by
Mia
685 views
a body of mass 2kg is released from a point 100m above the ground.
Calculate its kinetic energy 80m from the point of release.?
4 answers
asked by
Juliet
2,090 views
Assuming 3.9g of the ferrous salt was dissolved in 100cm3 of distilled water, calculate it's molarity by mole concept?
2 answers
asked by
Tatiana Horace
629 views
A body of mass 2kg is placed on a rough inclined plane ,whose angle of inclination is 30°.
Find the force acting down the slope
2 answers
asked by
Oviedo Santos
868 views
A real cubic expansivity is the increase in volume of a liquid per unit volume per degree rise in temperature when heated in an
3 answers
asked by
Oviedo Santos
462 views
Show that the net charge inside the conductor is zero.
1 answer
asked by
Iba
402 views
A hollow metal sphere of radius 10cm is charged such that the potential in its surface is 5volt . What is the potential at the
2 answers
asked by
Iba
540 views
A car traveling at 22.0 m/s decelerates for 2.33 seconds at a rate of -2.25 m/s2. What will the final speed be in m/s?
=16.8m/s??
1 answer
asked by
mssailormouth
455 views
A ball thrown with a speed of 100ms^-1 attains a height of 150m. ( take g= 9.8ms^-2) calculate the: (a) time of flight (b) angle
4 answers
asked by
Khadija Ismail
794 views
A spider spring of a spring balance is 25cm long when 5N weight hang on it and 30cm long when the weight is 10N what is the
3 answers
asked by
Alannah Addison
868 views
a 35n force acts on a body of mass 5kg for 2 seconds .
calculate the change in momentum of the body?
2 answers
asked by
PSYCHO
975 views
in his attempt,a long jumper took off from the spring board with a speed of 8ms^-1 at 30° to the horizontal. He makes a second
3 answers
asked by
Sebastian
611 views
An elastic change of all constant 2000 permeter undergoes a strain of 0.02 Under a load of 20N.
What is the natural length of the
1 answer
asked by
Sebastian
401 views
a parallel beam of light which formed upon a converging lens arrange with its axis parallel to the beam is brought to focus a
1 answer
asked by
KC(king of casino)
435 views
a beam 1.4m long balanced horizontally on a knife edge at its mid point. if a mass of 50g hung at one end of the beam balanced
2 answers
asked by
John
685 views
a particle having a speed of 1.0x10^6m/s collisdes with a stationary proton which gains an initial speed of 1.60x10^6 in the
3 answers
asked by
DAMILOUS
662 views
Three horizontal forces are pulling on a ring at rest. f1 is 6.25 N at 180 degree angle and f2 is 8.90 N at a 243 degree angle
3 answers
asked by
Allen
1,618 views
Find correct to the nearest degree, the angle between p=12i - 5j and q=4i + 3j?
2 answers
asked by
KC(king of casino)
503 views
The lower fixed point of an graduated thermometers 20-degree office much is 100 calculate the equivalent reading in Kelvin scale
1 answer
asked by
KC(king of casino)
415 views
The lower fixed point of an graduated thermometers 20-degree of much is 100 calculate the equivalent reading in Kelvin scale
1 answer
asked by
KC(king of casino)
435 views
Given the vectors A=3i+2j-3k and B=4i-4j+2k, find B*A?
1 answer
asked by
KC(king of casino)
444 views
The half life of an element Z is 10days. if there are 10g of Z intially, what will be its mass after 40 days?
3 answers
asked by
Deborah
524 views
three horizontal forces are pulling on a ring at rest F1 is 100 N at a 45 degree angle and F2 is 135 N at a 160 degree direction
4 answers
asked by
Allen
1,298 views
three horizontal forces are pulling on a ring at rest F1 is 6.25N at a 180 degree angle and F2 is 8.90 N at a 243 degree
3 answers
asked by
Allen
1,171 views
A 7.30 kg sign hangs from two wires. The first wire is attached to the left end,and pulls 28.0 N directly left. What is the X
2 answers
asked by
Smith
751 views
the velocity of s stationary wave in a sring is given by te relation V=K^x T^y e^z where k is the constant
calculate the value of
1 answer
asked by
Christabel
331 views
find the derivative of the following: (a) e^tanx (b) e^sin4x?
1 answer
asked by
Brain box
302 views
A locomotive creates a 59400 force which creates an acceleration of 0.145 m/s. What is the mass of the locomotive
2 answers
asked by
Smith
1,306 views
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