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Physics
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Two friends are pushing a stalled 1610 kg car. The first pushes with a 107 N forward force. The car accelerates at 0.123 m/s.
4 answers
asked by
Keenan
1,416 views
A 39.5 kg sled is pulled forward with a 72.8 N force which causes an acceleration of 0.521 m/s how much friction force acts on
4 answers
asked by
Mike
1,705 views
a 15.5 kg block is pulled by two forces. The first is 11.8 N at a 53.7 angle and the second is 22.9 at a -15.8 angle. What is
3 answers
asked by
Ty
844 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
Cynthia
352 views
1)a man uses a rope to haul a load of 750n up an wooden inclined plane of effective length 4.50m,1.5m high,the fractional force
3 answers
asked by
King Sọlọmọn
1,007 views
Show that the coefficient of surface tension T is given by T=rhPg/2 where P, h and r are density, height and radius of the
2 answers
asked by
King Sọlọmọn
542 views
a sled starts from rest and slides down a 38.0 degree frictionless hill for 4.24 seconds. How fast is it going at the end
3 answers
asked by
Ty
1,385 views
a rope pulls a 82.5 kg skier at a constant speed up a 18.7 degree slope with uk equals 0.150. How much force does the rope exert
3 answers
asked by
Lilly
934 views
a 2.35 water bucket is swung in a full cirlce of radius 0.824 m just fast enough so that the water doesn't fall out the top
5 answers
asked by
Ty
515 views
a 57.0 kg person on a rollercoaster moving through the bottom of a curved track of radius 42.7 m feels a normal force of 995 N
2 answers
asked by
Aaron
1,270 views
a 47 kg person in a rollercoaster moving through the bottom of a curved track of radius 47.7 m feels a normal force of 895 n
1 answer
asked by
Curt
352 views
a 47 kg person in a rollercoaster moving through the bottom of a curved track of radius 47.7 m feels a normal force of 895 N.
4 answers
asked by
Danny
449 views
a 47 kg person in a rollercoaster moving through the bottom of a curved track of radius 47.7 m feels a normal force of 895 N.
3 answers
asked by
Danny
369 views
a 2.25 kg bucket of water attached to a rope is swung in a 0.809 m circle. At the top the tension in the rope is 15.5 N
2 answers
asked by
Tyra
1,082 views
a 57.0 kg person in a rollercoaster moving through the bottom of a curved track of radius 42.7 m feels a normal force of 995 N.
2 answers
asked by
Tyra
626 views
astronomers believe the moon used to be much closer to the earth mass=5.98 x 10^24 kg. When it was at 1.92 x 10^8, half its
2 answers
asked by
John
783 views
Ganymede is a moon of jupiter mass=1.90 x 10^27 kg. it orbits jupiter in a circle of radius 1.07 x 10^9 m. what is ganymede's
2 answers
asked by
John
852 views
An archer defending a castle is on a 15.5 m high wall. He shoots the arrow straight down at 22.8 m/s. How much time does it take
2 answers
asked by
David
959 views
an archer defending a castle is on an 15.5 m high wall. he shoots an arrow straight down at 22.8 m/s
I know this is an easier
2 answers
asked by
Tiandre
1,109 views
A spiral spring of natural 20.00cm has a scale pan hanging freely in it's lower end. When an object of mass 40g is placed in the
4 answers
asked by
Oga Buhari
1,536 views
Calculate the heat energy required to change 0.1kg of ice at 0oc to water boiling at 100oc (SPC of water = 4200, SLH of ice
2 answers
asked by
Venessa Benson.
813 views
A 0.103 kg ball is moving 11.9 m/s when it runs into a spring of spring constant 66.9 N/M . How far does the spring compress in
3 answers
asked by
Aj
1,252 views
A golf club hits a 0.049 kg golf ball at rest. Afterwards the ball leaves at 63.9 m/s. What impulse was given to the ball
2 answers
asked by
Lauren
1,124 views
A box has a momentum of 38.0 kg times m/s to the right. A 88.3 N force pushes it to the right for 0.338 s. What is the final
3 answers
asked by
Mari
1,320 views
Before colliding the momentum Of Block A is +450 kg • m/s and Block B is -150 kg • m/s After Block A has a momentum +100
3 answers
asked by
Mari
979 views
An object is thrown downward at 35.0 m/s from a great height. What is its velocity after 5.0 s?
3 answers
asked by
Anonymous
720 views
The runner traveled 2km 22 degrees North East from y axis, 4km 25 degrees North West from x axis, 7km 70 degrees South West from
3 answers
asked by
Thando
664 views
what quantity of heat will be necessary to change 4k of ice at 0degree to water at 3 degree?(specific latent heat of fussion of
1 answer
asked by
Diana
422 views
a 2uF capacitor is charged to a potential of 200v and then isolated. When it is connected in parallel switch a second capacitor
3 answers
asked by
Diana
3,979 views
A water reservoir in the form of a cone mounted on a hemispere is built such that the plane face of the hemisphere is built fits
3 answers
asked by
Diana
992 views
The distance traveled by a particle starting from rest is plotted against the square of the time elapsed from the start of the
2 answers
asked by
Diana
519 views
A fire hose ejects a stream of water at an angle of 37.8 ° above the horizontal. The water leaves the nozzle with a speed of
3 answers
asked by
Jasma
913 views
A car drives horizontally off the edge of a cliff that is 31.4 m high. The police at the scene of the accident note that the
3 answers
asked by
..
775 views
an electric appliance takes 5A when operated on a 220V supply. Find the cost of operating the appliance for days at 2 kobo per
2 answers
asked by
Sade
629 views
When a 5kg mass is hung from a vertical spring,it streches by 25cm.(a)what mass must be supported by d spring in order to make d
1 answer
asked by
Sade
477 views
A blacksmith dropped a 1.5kg iron bead at 300c into some quantity of water. If the temperature of the water from 15c to 18c,
1 answer
asked by
Sade
680 views
4000J of heat is applied to a 1.5kg sliver pendant initially at temperature of 150c. Determine its final temperature (Latent
1 answer
asked by
Jordan Asad
608 views
A 300 g copper object is dropped into 150 g copper calorimeter containing 220 g of water at 20 degrees C. This causes the water
2 answers
asked by
Jordan Asad
624 views
A skateboarder at a skate park rides along the path. If the speed of the skateboarder at point A is v=1.4 m/s what is her speed
3 answers
asked by
Erin
1,599 views
What is the change in entropy of steam 320g of steam at 100°C when it is condensed to water at 100°C?
3 answers
asked by
Johnny
907 views
if NEPA charge 6k kWh what is the cost of operating for 24hrs of a lamb?
4 answers
asked by
Ọnụ
523 views
The velocity ratio of a machine is 5 and it efficiency is 75%.what effort would be needed to lift a load of 25N with the
5 answers
asked by
Ọnụ
1,709 views
A lantern gives an image of 3m square of a side 7.62cm² on a screen. If the screen is 10m from the projection lens of the
1 answer
asked by
Ọnụ
380 views
How to Calculate How Many Rings in an Atom
1 answer
asked by
Anonymous
356 views
A circuit consisting of three resistance 12ohm, 18ohm and 36ohm respectively joined in parallel, and connected in series with
5 answers
asked by
Ann
4,101 views
Calculate the molar mass of C12H22O11. Show all the calculations.
1 answer
asked by
Godzilla
415 views
calculate the work done and the heat liberated in the isothermal expansion of a gas of volume1.80L from pressure of 252kpa to a
1 answer
asked by
Bobrisky
411 views
Calculate the braking force to bring a body of mass 1kg to rest from 25m/s on a level ground in 60m with uniform retardation?
4 answers
asked by
Bobrisky
699 views
A drop hammer is lifted to a height of 50m above the ground and then allowed to fall from rest on to forging at ground level.
3 answers
asked by
Bobrisky
607 views
A uniform rod of weight 10N is balance at a point 75cm from the end B the pivot is removed to point 30cm from A. What force must
2 answers
asked by
Bobrisky
928 views
A copper strip 20cm wide and 1.5mm thick is placed in a magnetic field of 1.75wbm^2.if a current of 220A is set up in the
2 answers
asked by
Awilo locomba
896 views
A fahrenheit thermometer registers 100°F while a faulty celsius thermometer registers 44°C.Find the error in the later
4 answers
asked by
Bhavana Priya
1,576 views
A man can row a boat at 13m/s in still water. If the aims at crossing to the opposite bank of a river flowing 5m/s, at what
4 answers
asked by
Yemen
896 views
An equilateral triangular lamina has each side equal to 50cm. How far is the centre of gravity from each vertex?
2 answers
asked by
Omenala
779 views
A machine gun fires a bullet with an initial velocity of 200m/s at an angle of 60° to the horizontal. If g=10m/s2, the total
3 answers
asked by
Omen Stella
836 views
An open organ has a length of 6m. If the speed of sound in air is 340m/s and neglecting the end corrections, the frequency of
1 answer
asked by
David Cameron
363 views
A load of 2 tonnes is raised with 10N efforts. Calculate the mechanical advantage of the machine with which the load is raised?
2 answers
asked by
David Cameron
635 views
A 8kg mass rests on an inclined plane. If the limiting frictional force of 50N and g=10m/s2, then the angle of inclination of
2 answers
asked by
David Cameron
618 views
A conductor of length 5m carrying a current of 15A is placed in a uniform magnetic field of flux density 0 25T. If the conductor
1 answer
asked by
David Cameron
478 views
A pain wire 0.5m long has a total mass of 0.01kg and is stretched with a tension of 800N. The frequency of its fundamental note
3 answers
asked by
David Cameron
434 views
A car move at an average speeds of 30km/s,how long does it take to cover 200 meters?
2 answers
asked by
David Cameron
626 views
A fast moving object of mass 200g travels at 100m/s and hits a block of wood of mass 2kg. The two bodies moved together after
2 answers
asked by
Ms: Hadiza
951 views
Determine the distance traveled by a particle whose initial velocity is 48km/h. The particle accelerate uniformly at Tate of
2 answers
asked by
Ms: Hadiza
753 views
A metal block of made 2125g displaces 250cm3 of water. What's is it's density?
3 answers
asked by
Ms: Hadiza
609 views
A car of mass 1000kg travels with a velocity 45km/h on a rough road and it is brought to a rest after 10s. What is the force
3 answers
asked by
Ms: Hadiza
580 views
A pile driver of mass 125kg falls through a height of 80m before striking the pile. What is it's momentum at the instance it
4 answers
asked by
Ms: Hadiza
1,174 views
A bridge 100m long weighs 500kN. A lorry weighing 100kN is 25m from one end of it. Find the force exerted at this support?
3 answers
asked by
Pedlo
753 views
What is the kinetic energy of a rock of mass 220g after it has fallen freely for 5seconds?g=10m/s2?
2 answers
asked by
Pedlo
497 views
1.find the derivative of y=3n³-2
2.find the value of n,given that n 1,2n,2n 3 are consecutive terms of a linear sequence?
1 answer
asked by
Pedlo
308 views
1.find the derivative of Y =3n²-2
2.find the derivative of Y =sinx
1 answer
asked by
Pedlo
344 views
1.express 3√3 in its basic form
2.A coin is thrown only once what is the probability of obtaining a head?
1 answer
asked by
Pedlo
339 views
The command module orbited at an altitude of 110 km above the lunar surface. How much time did it take for the command module to
6 answers
asked by
Erin
1,586 views
Three bowling balls form an equilateral triangle. Each ball has a radius of 10.8 cm and a mass of 7.26 kg. What is the total
3 answers
asked by
Madison
2,108 views
the upper and lower fixed points of thermometer T are 90 and 10 respectively. Determine the temperature on the Kelvin scale when
3 answers
asked by
Pedlo
502 views
2 bodies Q and R is painted black and R is silver punished, if they are headed to the same temperature and place in a
1 answer
asked by
Mr:EL CHALPO
315 views
tennis ball machine fires a ball vertically upwards at time
t = 0 at 19.6 m/s. Assume that air resistance is negligible and take
10 answers
asked by
Anonymous
3,550 views
An air column 10cm in length is trapped into the sea end of a capillary tube by a 15cm column of mercury with the tube held
1 answer
asked by
Mr:EL CHALPO
874 views
A gun of mass 0.1kg has a bullet of mass 0.1kg the bullet leaves the piston when fired at a velocity of 200m/s find the final
1 answer
asked by
Mr:EL CHALPO
467 views
if V is the velocity of a wave, it'd wave length and T it'd period, the V, d and T are related by the expression?
3 answers
asked by
Robotic
629 views
A 60 cm long wire is oriented from east to west directly above the equator and carries a current of 5 A (toward the east). What
1 answer
asked by
Mel
614 views
A milliammeter of resistance 2.5ohms and a full deflection of 50mA iS to be used to measure a potential difference of 50v.
2 answers
asked by
Robotic
900 views
A person pushes on a 59-kg refrigerator with a horizontal force of -260 N; the minus sign indicates that the force points in the
4 answers
asked by
Joe
1,563 views
For an electronic in nucleus make 180 revolution in 1.5 weeks what is the angular velocity of the electron?
1 answer
asked by
Robotic
353 views
A 51.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels herself backward with a
2 answers
asked by
Jojo
786 views
A conductor has a diameter of 1.00mm and length 2.00m.if the resistance of the material is 0.1 ohms,it's resistivity is
A.3.93
2 answers
asked by
Robotic
649 views
If 6Cr/6pr=1/6, find the value of r.
A.1 B.3 C.5 D.6?
2 answers
asked by
Robotic
798 views
The horizontal position of a car in a parking lot can be specified by providing its x and y coordinates. At time t = 0 s the car
2 answers
asked by
Zoey
708 views
calculate the time taken for a car to cover a distance of 125m if the initial speed is 5m/s AMD it has a constant acceleration
2 answers
asked by
Robotic
464 views
A heating instrument has 12 resistors and they are placed vertically and have a uniform reducing Power.The powers of the first,
3 answers
asked by
Robotic
486 views
1.0g of the oxide of metal x(atomic mass =64)gave 0.08g of the mental when reduced with hydrogen. the formula of oxide is?
3 answers
asked by
Robotic
533 views
A heating instrument has 12 resistors and they are placed vertically and they have uniform reducing power.The power of the
2 answers
asked by
Robotic
540 views
In a box there are 10 T-shirts,15 long sleeve shirts and 25 gowns.If one attire is picked at random, what is the probability
2 answers
asked by
Robotic
573 views
Calculate the mass of 3.7dm^3 of hydrogen at 21.5°c and a pressure of 102Pa?
4 answers
asked by
Robotic
426 views
222
Ra successfully looses 3 alpha particles and further 2 beta particles Write out the formula of n 88?
1 answer
asked by
Robotic
406 views
A rock climber hangs freely from nylon rope that is 16 m long and has a diameter of 8.1 mm. If the rope stretches 4.2 cm, what
3 answers
asked by
Erin
1,130 views
Suppose you must remove an average of 3.4 X 10 ^8 J of thermal energy per day to keep your house cool during the summer. If you
2 answers
asked by
Erin
573 views
A ball of mass 8kg falls from rest height of 100meters neglecting the air resistance calculate its total energy after falling a
1 answer
asked by
Ademola
470 views
if the maximum voltage across a 100 ohm resistor is 20. then the maximum power it can dissipate is?
3 answers
asked by
Robotic
692 views
A radioactive source has a half-life of 6 days.How long will it take for the count rate to fall from 180 per minutes to 145.
1 answer
asked by
Robotic
444 views
a 2kg steel block is originally at 10°c. if 40kj of heat energy are added to the block, what is its final temperature?
2 answers
asked by
Robotic
623 views
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