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Physics
Page 5
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if the body describes a vertical circle then the minimum velocity at angle theta from lowest position is
2 answers
asked by
Thousif
472 views
a boy stands at a distance of 175 m from a high wall. He claps his hands and hears an echo after one second. Calculate the speed
6 answers
asked by
Anonymous
1,684 views
Let n represent the number of similar resistors in a circuit. Each resistor has a resistance of r. When the resistors are
4 answers
asked by
Sam
1,346 views
Three point sized bodies each of mass M are fixed at three corners of light triangular frame of length L about an axis
3 answers
asked by
Thousif
630 views
Three point sized bodies each of mass M are fixed at three corners of light triangular frame of length L about an axist hrough
7 answers
asked by
Thousif
1,335 views
A body starts from rest and traveling with a uniform acceleration with a velocity of 40 m /sec after 10 sec at A Velocity of the
1 answer
asked by
Aiman
462 views
When the length of each side of a square is increased by 5 inches, the AREA is increased by 85 in2. Find the length of the side
2 answers
asked by
Lorena
603 views
Water is flowing through a horizontal pipe of varying cross section.At any two places the diameter of the tube is 4cm and 2cm.
1 answer
asked by
Thakur Rituraj Singh Bhadauriya
772 views
Three objects A, B, C are at vertices P, Q and R respectively of square PQRS of side 1km speed of these objects are 36km/hr
2 answers
asked by
Thousif
490 views
X and Y are planets.Accelaration due to gravity at a height half the radius from surface of planet X is equal to that of at the
1 answer
asked by
Thousif
375 views
Three objectsare at vertices of square PQRS of side 1km speed of these objects are 36km/hr 10m/s 0.8km/min initially they are at
1 answer
asked by
Thousif
365 views
two small, identical conducting spheres A and B are a distance R apart; each carries the same charge Q. (a) What is the force
5 answers
asked by
Yumato
2,173 views
A car travels along a straight stretch of road if receipts for 13.6 miles at 55 mph than 25.8 miles at 48 mph and finally 43.1
2 answers
asked by
Anonymous
472 views
A small box is held in place against a rough vertical wall by someone pushing on it with a force directed upward at 25o above
2 answers
asked by
james
970 views
A car can decelerate at -3.36-m/s2 without skidding when coming to rest on a level road. What would its deceleration (in m/s2)
3 answers
asked by
james
894 views
A wet bar of soap slides down a ramp 5.3-m long inclined at 4.9o. How long (in seconds) does it take to reach the bottom, assume
2 answers
asked by
james
1,190 views
A skateboarder with an initial speed of 3.1-m/s, rolls virtually friction free down a straight incline of length 18-m in 3.2-s.
2 answers
asked by
james
546 views
Four point masses are placed at the corner of a square of side 2m .find the centre of mass of the system w.r.t the centre of
1 answer
asked by
Varsha
638 views
Two bodies having masses 20kg and 10kg are moving with uniform velocities 20m/sec and 10m/sec from opposite direction and make
4 answers
asked by
Dhritiraj Talukdar
480 views
Physics :adaobi walked 2km due west and then 2km due south. Calculate the displacement of the girl.
2 answers
asked by
Oyedele nymous
572 views
At the instant a race began, a 60-kg sprinter exerted a force of 669-N on the starting block at a 24 angle with respect to the
2 answers
asked by
wanda
1,008 views
A car can decelerate at -2.47-m/s2 without skidding when coming to rest on a level road. What would its deceleration (in m/s2)
4 answers
asked by
HELP
2,040 views
A car can decelerate at -2.47-m/s2 without skidding when coming to rest on a level road. What would its deceleration (in m/s2)
3 answers
asked by
Austin
814 views
How fast (in rpm) must a centrifuge rotate if a particle 69-cm from the axis of rotation is to experience an acceleration of
4 answers
asked by
HELP
5,448 views
A gps tracker at their base camp shows the location of the first team as 38 km away, 23° north of west, and the second team as
2 answers
asked by
Leah
525 views
Find the solution of this question - find the pressure on each foot of elephant m=500 kg if area of each foot 50 cm
1 answer
asked by
Ashok
333 views
A bike starts from rest and accelerates to 20 m/s over a period of 6 seconds. What is the acceleration of the car?
1 answer
asked by
Anonymous
440 views
What should be the spring constant k (in N/m) of a spring designed to bring a 1105-kg car to rest from a speed of 69-km/h so
3 answers
asked by
wanda
1,824 views
calculate the specific heat capacity of the materials for which the heat supply, mass, and temperature below: (i) 2.52 x 10^4j,
2 answers
asked by
Johnny
527 views
A rocket of mass 1000 kg containing a propellant gas of 3000kg is to be launched vertically. If the fuel is consumed at a rate
7 answers
asked by
Christian
1,772 views
A force acts on a 1.5-kg, mass, giving it an acceleration of 3.0m/s^2. (A) If the same force acts on a 2.5-kg mass, what
3 answers
asked by
kayla
528 views
A particle moving along a straight line with a constant acceleration of -4m/s*2 passes through a point A with a velocity of
1 answer
asked by
Thousif
734 views
A particle travels 10m in 5sec and 10m in 5sec and 10m in 3sec assuming constant acceleration what is the distance travelled in
3 answers
asked by
Thousif
475 views
A particle travels 10m in 5sec and 10m in 3sec assuming constant acceleration what is the distance travelled in next 2sec?
1 answer
asked by
Thousif
371 views
A basketball is thrown at 8.00m/s [up] from a height of 2.00m and eventually comes back down to hit the floor. a)assuming a
3 answers
asked by
Mary
519 views
A boat crosses a river of width 164 m in which
the current has a uniform speed of 1.3 m/s. The pilot maintains a bearing (i.e.,
4 answers
asked by
Kate
834 views
A 0.471-kg hockey puck, moving east with a speed of 8.17 m/s, has a head-on collision with a 0.795-kg puck initially at rest.
2 answers
asked by
wanda
580 views
A girl at a ropes course pulls herself upward using a cage and pulley system. There combined mass is 64 kg.
A)Calculate the force
2 answers
asked by
Demi
552 views
An airplane is experiencing turbulence and at some point you feel like feeling lighter. If at that moment your apparent weight
2 answers
asked by
Wannes
532 views
A steel wire 2.7-mm in diameter stretches by 0.211 percent when a mass is suspended from it. How large is the mass in kg?
3 answers
asked by
wanda
1,069 views
Three point sized bodies each of mass M fixed at three corners of light triangular frame of side length L about an axis
2 answers
asked by
Chandrika
485 views
A - A hummingbird flies 2.7 m along a straight path at a height of 5.3 m above the ground. Upon spotting a flower below, the
3 answers
asked by
Anna
572 views
A - A hummingbird flies 2.7 m along a straight path at a height of 5.3 m above the ground. Upon spotting a flower below, the
3 answers
asked by
Anna
509 views
A ball is battled straight up and returns to the level of the batter after 6.5s determine how high the ball went
2 answers
asked by
Alex
524 views
Supposed a skydiver ( mass=75kg ) is falling toward the earth. When the skydiver is 100m above the earth he is moving at 60m/s.
4 answers
asked by
Terry
2,225 views
A block with a weight of 3.7 N is launched along a slope upwards by a spring with k = 2.25 kN / m. The slope makes an angle of
3 answers
asked by
Bob
580 views
What is the average kinetic energy of nitrogen molecule at 20°C
5 answers
asked by
Buma
2,064 views
There is gas in a gas container. A valve on the container will be opened and a quarter of the gas quantity will be released to
3 answers
asked by
Buma
1,658 views
8.31 Wh (watthours) heat is transmitted to 1 mole single atomic ideal gas. The gas temperature is 27°C and the pressure is
4 answers
asked by
Buma
631 views
A wire-wound resistor with a resistance of250ohm Will overheat if the power dissipated exceeds 10W.What is the maximum constant
3 answers
asked by
Evans
720 views
A 64 kg skier is on a 18 degree slope. The coefficient of kinetic friction between the skis and snow is .04. A) What is the
5 answers
asked by
Ana
833 views
How can I find the distance?
Mountain pull. A large mountain can slightly affect the direction of “down” as determined by a
2 answers
asked by
Austin
650 views
a driver runs off the end of a 6.50 m tall diving board with an initial horizontal velocity of 7.05 m/s.
How long is the diver in
2 answers
asked by
Adrian
558 views
A car moving with a speed of 90km per hrt was brought to rest by the applications of brakes in 10sec how far the car the car
2 answers
asked by
James awodi
626 views
What is internal energy ? & how is internal energy of a real gas differs from that of ideal gas?
3 answers
asked by
Aboodi
387 views
how is internal energy of a real gas differs from that of ideal gas?
Please write the difference in details
1 answer
asked by
Aboodi
385 views
An air track cart with mass m 0.4kg and initial speed v0 = 0.7m/s collides with and sticks to a second cart that is at rest
4 answers
asked by
Ekaette
3,560 views
In moving a 35kg desk from one side of a room to another, a man finds that a horizontal force of 275N is necessary to set the
2 answers
asked by
Kayla
510 views
In moving a 35kg desk from one side of a room to another, a man finds that a horizontal force of 275N is necessary to set the
1 answer
asked by
Kayla
469 views
A uniform disc of 2.98 kg is mounted so that it can rotate in the horizontal plane around a frictionless axis through its center
2 answers
asked by
Bob
546 views
A desk fan has three (approximately) rectangular sheets of 15.8 cm long and 5 cm wide, each with a mass of 140 g. The fan is
3 answers
asked by
Bob
564 views
A 100kg man stands initially on the left end of a 60 kg, flat-bottomed fishing boat that is 10 meters long. This end of the
2 answers
asked by
Kimbo
694 views
A 0.50kg mass is suspended on a spring that stretches 3.0cm.
a. What is the spring constant? b. What added mass would stretch the
2 answers
asked by
RICky
582 views
A ball is dropped on to the floor from a height of 20m it rebounds to height of 10m if the ball is in contact with floor for 0.1
2 answers
asked by
Sanmesh
694 views
What is consumed whenever work is done
4 answers
asked by
Vanshika
304 views
Find analytically the sum or resultant of the following displacements:
A= 10m Northwest , B= 20m 30 degree north of east and C =
6 answers
asked by
Ismail
3,068 views
Check whether the 3 vectors ar coplanar or not
A= t+j+k , B= i+3j+k , C= 2i+2j+2k
7 answers
asked by
Ismail
518 views
A and B are vectors in the same plane. If A= 8i+6j. Find the vector B such that |A+B| = 14.14 units and A is perpendicular to B.
6 answers
asked by
Ismail
386 views
A force of 20.0 N gives an object an acceleration of 12.5 m/s2. What is the mass of the object?
4 answers
asked by
Me
552 views
A bowling bowl has a mass of 25 KG. What is the acceleration of the ball if an upward force of 110 N is applied?
2 answers
asked by
Vanessa
476 views
A man pulls a bucket of water of mass 10kg from a well 5meter deep in 5 sec. Calculate the power of the man.
4 answers
asked by
Vivek
3,706 views
If a car is moving on a highway at 70 kilometers per hour, going south, and then turns to travel 70 kilometers per hour east,
4 answers
asked by
SwimmerGirl
1,660 views
On piercing a distance of 15cm in a wooden block a bullet losses of its initial velocity before coming to rest the further
3 answers
asked by
Thousif
690 views
a body of mass 4kg is moving with a momentum of 12kg m/s it's kinetic energy 1:3 then ratio of their velocities
Ans:1:3
2 answers
asked by
Thousif
695 views
The horse on a carousel is 3.6 m from the central axis. If the carousel rotates at 0.15 rev/s, how fast is a child on the horse
4 answers
asked by
Jesus
1,497 views
A body ascends a slope with a speed of 10ms^-1. If 105 J of energy of the body is lost due to friction , the height to which the
2 answers
asked by
Thousif
634 views
When an objects acceleration is 0 at an instant t in time, its velocity is
1. zero at t. 2. negative at t. 3. positive at t. 4.
1 answer
asked by
Lyndsay
336 views
a canon fires shell at 300m/s. at what angle must it aim to hit a target 5.0km away?
2 answers
asked by
Ali
713 views
An 85kg person bounces on a bathroom scale having a force constant of 1.50*10^6 N/m. The amplitude of the bounce is 0.200 cm.
2 answers
asked by
anonymous
529 views
What will be the average braking force needed to bring a car of mass 800kg traveling 72km/hr to a stop at a distance of 100m
3 answers
asked by
Anonymous
842 views
At a chemical plant where you are an engineer, a tank contains an unknown liquid. You must determine the liquids specific heat
4 answers
asked by
Marthin
1,748 views
The tube of a mercury thermometer has an inside diameter of 0.130 mm. The bulb has a volume of 0.270 cm^3.
How far will the
1 answer
asked by
Marthy
841 views
It is observed that 55.50 mL of water at 20 ∘C completely fills a container to the brim. When the container and the water are
3 answers
asked by
Marthin
1,876 views
A 68.6 kg solid aluminum cylindrical wheel of radius 0.45 m is rotating about its axle in frictionless bearings with angular
1 answer
asked by
Marthy
452 views
A small block with mass 'm' is placed inside an inverted cone that is rotating about a vertical axis such that the time for one
3 answers
asked by
Mr. Someone
1,417 views
An arrow slows down from 43 m/s to 28 m/s as it passes through an apple. If the 493 g apple was originally at rest and sped up
2 answers
asked by
Mike
514 views
A bullet with a mass of 28 g is fired from a 2.8-kg gun that is stationary, but free to recoil. After the bullet is fired, the
3 answers
asked by
Mike
2,864 views
Determine the x-intercepts of the polynomial function y=-6(x+7)^4 + 5. Round to two decimal places, if necessary.
3 answers
asked by
Mike
549 views
A 32.0 resistor is connected in parallel to a 18.0 resistor. These are joined in series to a 3.0 resistor and a source with a
4 answers
asked by
Potato
1,331 views
A 8.9 kg bowling ball traveling at 16.7 m/s strikes a 1.1 kg bowling pin. The impact slows the bowling ball to 11.4 m/s.
Determin
2 answers
asked by
Rm
798 views
When sugar is poured from the box into a bowl , the rubbing of the sugar grains create a static charge that repels the grains ,
2 answers
asked by
CHRis
1,088 views
A 2200. Kg vehicle is traveling at 26 m/s what is the force needed to stop it in 21 seconds?
4 answers
asked by
Anon
1,533 views
A man swings a 1.25 kg bat. He swings it at 42.0 m/s with a force of 272 N, which brings the bat to rest after it hits its
3 answers
asked by
Anonymous
483 views
Three charges are arranged as shown in the figure below. Find the magnitude and direction of the electrostatic force on the
4 answers
asked by
Maria
1,406 views
Two point charges lie along the y-axis. A charge of q1 = -7 μC is at y = 6.0 m, and a charge of q2 = -6.5 μC is at y = -4.0 m.
2 answers
asked by
Maria
1,158 views
You have a neutral balloon.
What is its charge after 12000 electrons have been removed from it? The elemental charge is 1.6 ×
2 answers
asked by
Phil
533 views
A 150m long train is moving with uniform velocity of 45km/hr.The time taken by the train to cross a bridge of length 850 meters
2 answers
asked by
Raj
601 views
A particle is projected at 10ms^-1 from a height of 45m. Calculate the horizontal distance covered by the particle before
4 answers
asked by
Anonymous
1,129 views
A particle is projected at 10ms^-1 from a height of 45m. Calculate the horizontal distance covered by the particle before
1 answer
asked by
Anonymous
450 views
How much work is done when a force of 70.1 N moves an object a distance of 64.4 m?
1 answer
asked by
Yolanda Gomez
315 views
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