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A winch drags a 200 kg crate along a 15 degrees incline at 0.2 m/s. The coefficient of kinetic friction is 0.22.
What is the
4 answers
asked by
Naniso
1,035 views
Two cars A and B are moving along astaight road in the same direction with velocity of 25km/h and 40km/h, respectively. Find the
2 answers
asked by
Nardos
533 views
Two gliders with masses m1 = 0.200 kg and m2 = 0.300 kg are held stationary on an air-track with compressed spring in between.
2 answers
asked by
Yin
572 views
A steel ball of diameter 0.2mm, falls with a
terminal velocity of 0.0029m/s through oil in a relatively large jar.Calculate the
1 answer
asked by
Skyboy
509 views
Obtaining an algebraic Equation for T
(0.300)(4190J/(kg*K)(T-70.0*C) + (0.100)(390J)/(kg*K)(T-20.0*C) I don't know how to use the
2 answers
asked by
Jason
506 views
You pull a 30.5 kg wooden box with a rope that makes a 23.0° angle with the horizontal at a constant speed. The coefficient of
4 answers
asked by
H
585 views
A tray move with a velocity of 10m|s in 2 minute. calculate the distance covered.
1 answer
asked by
Michael
267 views
Calculate The Momentum Of A 5g Bullet With A Velocity 200m/s
3 answers
asked by
Timi
471 views
A large concave mirror has radius of 6.32m. To magnify an object 1.25m tall by a factor of +2.5
1 answer
asked by
Eric
493 views
A large concave mirror has radius of 6.32m. To magnify an object 1.25m tall by a factor of +2.5
Must the object be placed Will
2 answers
asked by
Eric
530 views
ON is the vertical plumb line.A horizontal force F applies at M to push the piston at O and N,with the help of rods MO,MN.The
1 answer
asked by
Joey
450 views
A ball of mass 0.7Kg is dropped unto a floor from a height of 5m and rebounds to a height of 3m. Find the impulse on the ball
3 answers
asked by
Shina omotoye
454 views
A beanbag was thrown straight upward from the ground at a initial velocity of 22.5 m/s. At the same time, another beanbag is
2 answers
asked by
Sayra
933 views
A particle of mass 1kg undergoes simple harmonic motion and its potential energy U changes with displacement x from a fixed
1 answer
asked by
Ellise
449 views
Point B is 5.0 KM east of Point A. A cyclist leaves A and goes 3.0 km in a direction of 30 degrees to the north of east
A. in
2 answers
asked by
Anna
466 views
A body weighing 150 N, moves with simple harmonic motion. The velocity and
acceleration of the body when it is 200 mm from the
3 answers
asked by
Abduu
534 views
A ball of mass 1000g moving with 7m/s impinges another ball of twice its own mass
and moving with 1/6th of its own velocity and
1 answer
asked by
Abdu
423 views
you have to push with a force of 200N to slide a refrigerator across a floor at constant velocity.What is the force of friction
2 answers
asked by
nicholas
1,241 views
A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x =
2 answers
asked by
Tea
1,248 views
Two positive point charge of 12 ?C and 8 ?C are 10 cm apart. The work done in bringing them 4 cm closer is...
3 answers
asked by
Boni
414 views
A block of mass 0.500 kg is pushed against a horizontal spring of negligible mass
until the spring is compressed a distance x (
3 answers
asked by
Pongsathorn
1,499 views
A ball B1 is dropped from the top of a building, one second later another ball, B2 is thrown down with an initial speed of
3 answers
asked by
Heeelllp
517 views
3 identical spheres are given equal amount of charge and hang from a common point with 3 massless string .each of length l .as
1 answer
asked by
Shivam tiwari .euro
456 views
If the energy used to heat up a block of 2kg of copper is 115.8 kJ, what is the temperature it was heated to if the starting
1 answer
asked by
mike
487 views
Find the resultant of the following two displacements; 2.0 m 40 degrees 4.0 meters at 127 degrees. the angles are taken relative
2 answers
asked by
Anonymous
1,145 views
When conducting a free fall experiment,Ali drop an egg from a 46 m tall building,accidently encik Abu is walking alongside the
3 answers
asked by
Alinuemyqis
474 views
A stone is thrown from the top of a building upward at an angle of 30.0 to the horizontal and with an initial speed of 25.0m/s
3 answers
asked by
Kpadeh
782 views
A force of 10N act on a object making 30 degree angle north of east and another force of 20N act on it along north. Calculate
2 answers
asked by
Adil
507 views
A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly
2 answers
asked by
Need your help PLS
795 views
A bolt comes loose from underneath an elevator that is moving upward at a speed of 7.6 m/s. The bolt reaches the bottom of the
2 answers
asked by
Jam
795 views
A blue ball is thrown upward with an initial speed of 21.0 m/s, from a height of 0.8 meters above the ground. 2.6 seconds after
1 answer
asked by
First name
769 views
A cyclist travel 2.5km east then 10.0km south and finally 5.0km west.Determine thecyclistcyclist's overall displacement from
4 answers
asked by
Anonymous
617 views
calculate the linear expensivility of brass of a length is 120m that assumes a new temperature is 100 degree.
2 answers
asked by
Sani Muhammad Idris
459 views
1. The image shows a man pulling a truck. If it does not show up for you for whatever reason, this is a description of the
2 answers
asked by
Anonymous
519 views
A 0.610 kg wooden block is spun around on a wooden table. The wooden block is being spun around on a 2.00 m long massless wire.
2 answers
asked by
josh
515 views
When the break are applied to a moving car travelling at 60km/hr at decelerate at a uniform rate of 5m/s^2. .calculate the time
5 answers
asked by
Buchi
985 views
1.What is responsible for the __ g, we experience on the surface of the Earth?
2.Why do astronauts feel weightless in space
1 answer
asked by
Soul
390 views
A Uniform beam 6.0 metre long and weighing 4kg rest on supports at p and q placed left and right 1.0 metre from each end of the
3 answers
asked by
Stephen
945 views
Calculate the mass of a bus if it produces o force of 14,000N while accelerating at a rate of 5 m/s^2
4 answers
asked by
Sagar Chhetri
1,094 views
A inclined plane resis to aheight of 2m over adistanse of 6m calculate
3 answers
asked by
Abubakir
438 views
A sample of radium weighs 1000g.How long will it take to decay to 125g if its half-life is 1620 years?
4 answers
asked by
Jeffery
625 views
You are in the supermarket, pushing a cart with a force of 88 Newtons in the horizontal direction. There is a constant force of
1 answer
asked by
John
373 views
The magnitude of the force involved in a certain collision (measured in newtons) is equal to the change in momentum (measured in
1 answer
asked by
hi
398 views
In a hidrolic elevator the larger piston have a length of 0.5m.
a) What mass does the car need to have to be lifted by the larger
1 answer
asked by
Joa
193 views
It takes a force of 1280 N to keep a 1500 kg car moving with constant speed up a slope of
5.000 . If the engine delivers 50.0hp
3 answers
asked by
Adib
1,497 views
Two vectors of force 15N and 25N respectively, are inclined at an angle of 68 to each other.calculate the resultant of two
1 answer
asked by
Jane
328 views
Calculate the weight of mercury in the jar
3 answers
asked by
Anonymous
404 views
A 2-kg block slides on a frictionless horizontal surface and is connected on one side to a spring (k = 40 N/m) as shown in the
1 answer
asked by
jonathon
376 views
an empty relative density bottle has a mass of 35g.when filled with water its mass becomes 85g
3 answers
asked by
Gift ethan
557 views
A piece of copper weighing 250 is heated to 100 and quickly transferred to a copper calorimeter of mass 15 containing 80 of
4 answers
asked by
Favour
300 views
A machine with velocity ratio 5 was used to raise a load of 1.2kg mass through a height of 10m. If the work done is 800j, find
1 answer
asked by
Ernest
274 views
A machine with velocity ratio 5 was used to raise a load of 1.2kg mass through a height of 10m. If the work done is 800j, find
3 answers
asked by
Ernest
473 views
A pole-vaulter has 3500J of energy when he crosses a bar 7 meters high. How much kinetic energy will he have just before he
3 answers
asked by
IRISHA HOQUE
493 views
Two forces 5N and 4N are inclined to each other at 30°.find the resultant force by parallel method
1 answer
asked by
Anonymous
378 views
A stone propel from a cartaput with a speed of 50ms/m on its hight of 100m calculate the angle of projection physic as a subject
1 answer
asked by
Anonymous
236 views
A stone propel from a cartaput with a speed of 50ms/m on its hight of 100m calculate the angle of projection and how to get
1 answer
asked by
Anonymous
177 views
A stone is projected as an angle of 60% and initial velocity of 20ms/1 determine
3 answers
asked by
Anonymous
236 views
Given two vectors:A=2i-j+k and B=i+j+k evaluate
1 answer
asked by
Sirajo
212 views
Two force 5N AND 4N ARE INDUCE TO EACH OTHER AT 30 FIND THE RESULTANCE FORCE BY TRIANGEL METHOD
1 answer
asked by
Alpha elias
128 views
240 are such as the sum of their magnitude is 18 and their result is papendicular to the smaller Force and magnitude of the
1 answer
asked by
Favour
202 views
240 are such as the sum of their magnitude is 18 and their result is papendicular to the smaller Force and magnitude of the
1 answer
asked by
Favour
149 views
A +6 μC charge is placed at the origin and a -4 μC charge is placed 2 m to the right. A third (-8 μC) charge is placed on the
1 answer
asked by
Ros
346 views
What is the density of mixture of 1.5 m³ of water, 0.5 m³ of alcohol of density 800kg/m³? (density of water= 1000kg/m-³)
4 answers
asked by
Abiola
1,291 views
What is the density of mixture of 1.5 m³ of water, 0.5 m³ of alcohol of density 800kg/m³? (density of water= 1000kg/m-³)
(a)
2 answers
asked by
Abiola
251 views
the surface of area of a small piston a is 0.01m^2, the surface area of the big piston A is 0.1m^2 and the effort is 150N,
3 answers
asked by
Abiola
229 views
A stone of mass 10kg fall from a height of 2m calculate the work done
1 answer
asked by
James Catherine olamide
348 views
faulty Celsius thermometer reads 0.7 at the melting point of pure ice and 99.5 degree Celsius at the boiling point of water at
1 answer
asked by
Philip
255 views
A creat of mass 350kg is pulled of a rough inclined plane inclined at an angle of 60degree to the horizontal.determined the
1 answer
asked by
Debby
242 views
calculate d resultant of d two force of 8N and 7N acting perpendicular t o eaph other nd angld of d direction
1 answer
asked by
mama
174 views
Give the meaning of moment
1 answer
asked by
Enock
161 views
State the direction N25°W in two other ways
1 answer
asked by
Vera beauty
242 views
A uniform half metre rule AB is balanced horizontally on a knife edge placed 15cm from A , with mass of 39g at A . What is the
3 answers
asked by
Sizi
487 views
An aluminium kettle of mass 2kg holds 2.00×10^3cm of water and consume electric power at the rate of 2kw. If 60% of the heat
3 answers
asked by
Patience
320 views
Help me to calculate this:a stone is thrown horizontaly from the top of a building 80m height with velocity 12m-1 per second
2 answers
asked by
Anonymous
200 views
A body of mass 10kg is to be given an acceleration of 25m/s calculate the force required when the acceleration is vertically
1 answer
asked by
David
177 views
When brakers are applied to a moving e-wapon bravelling at sixty kilo meter per seconds.it decelerates at a uniform rate of five
1 answer
asked by
Ruth
183 views
A boy running in a northern direction later changes direction and started moving towards the Eastern direaction. If the distance
3 answers
asked by
Vincent
296 views
From the top of a cliff 80m heigh a stone is projected horizontally with a speed of 20m/s how far from the stone strike the
4 answers
asked by
Momoh
418 views
A rope5m long is fastened to two hooks4cm apart on a horizontal ceiling to the rope is attached 10kg mass so that the segment
1 answer
asked by
Faisal saliyu
179 views
An aerialist on a high platform holds on to a trapeze
attached to a support by an 8.00-m cord. (See the drawing.) Just before he
2 answers
asked by
Anonymous
566 views
A rod whose length at, 23degree c is 10m is heated to take linear expanitivity as 0.000018kg
1 answer
asked by
destiny
214 views
A long rope is fixed at one end and the free end is made to oscillate in one plane at right angle to the rope with a frequency
3 answers
asked by
A'ishat Bala
367 views
A rocket of mass 500kg carrying,4000kg of fuel is to be launched vertically . the fuel is consumd at a steaty rate of 50kg/s
3 answers
asked by
Orhembaga
254 views
Two forces of resultant 100n are prependicular to each other if one of them makes 60 degree with the resultant.calculate the
1 answer
asked by
Samuel
210 views
An object of mass 10 kg 8s moving with a velocity of 6m/s. Calculate it's kinetic energy. If a constant opposite force.
1 answer
asked by
Suman
223 views
Two vectors P and Q of magnitude 5N and 3N respectively are inclined at an angle of 30 degree to each other. Calculate the
4 answers
asked by
Shiekh
397 views
A spring makes 60 revolution in 15sec,fine the period and the frequency of the vibration.
4 answers
asked by
Faidat
215 views
A basketball is thrown into the air from a height of 2.25 m. The initial speed of the ball is 7.45 m/s at an angle of 50-above
1 answer
asked by
Avash
236 views
The force acting on the stroller is 40° from the horizontal surface.
Calculate the value of the force, F
1 answer
asked by
Jjjj
192 views
When a force of 400N is applied on a body at an anglesvof 60° to the horizontal direction of displacement the body covers a
2 answers
asked by
Chiamaka
226 views
How much ice initially at -4 °C is needed to cool down 250 g of water at 80 °C to 0°C?
Take the specific heat capacity of ice
3 answers
asked by
Laam
309 views
Explain refraction
1 answer
asked by
Abayomi segun
129 views
A body acceleration uniformly from rest at 2m/s^2 .caculate it velocity after travlling 9m
2 answers
asked by
Bose
110 views
A metre stick is pivoted at 20cm from one end and to this end aweight of 1.5N is attacked so that the stick is horizontally
1 answer
asked by
John
152 views
A car travels At a unifom velocity of 30m/s for 5 seconds. The brakes then applied and the car comes rest with Uniform
2 answers
asked by
Nathan
150 views
An object 7.5cm high is placed 30cm from a concave mirror of radius 20cm,calculate the image distance and image height
1 answer
asked by
Victory
98 views
Two placer A And B2 Are 120km apart from each othe on a highway.a car start from A And another from B At the same time.if they
1 answer
asked by
Prosper
105 views
projectile, fired with unknown initial velocity, lands 20 s later on the side of a hill, 3000
m away horizontally and 450 m
1 answer
asked by
Tina
186 views
A sprig 20cm long is strectched to 25cm by a load of 50N.what we be it lenght when strecthed by100M assuming the elastic limit
1 answer
asked by
Idowu
90 views
A load of 12n stretches aspring by 80mm.find the weight which produces an extension of 60mm on same spring.
1 answer
asked by
wrong colour
81 views
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