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Physics
Page 10
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The binding energy of neon is 106.6.find its atomic mass. Mp=1.007825amu.Mn=1.008665
1 answer
asked by
Liti
407 views
What is the PH of a 0.075M solution of the acid HA if the Ka for the acid is 4.8×10raise to power -8?
1 answer
asked by
Robotic
385 views
a copper strip 20cm wide and 1.5mm thick is placed in a magnectic field of 1.7Wbm . If a current of 220A is set up in the strip,
2 answers
asked by
Johnny sean
641 views
How far from a cliff should a boy stand in order to hear the echo of his clap 0.9s later? (Speed of sound in air = 330 ms-1)?
2 answers
asked by
Zobo
628 views
A solid weighs 0.040N in air and 0.024N when fully immersed in a liquid density 800kg. Calculate the volume of the solid
2 answers
asked by
Zobo
736 views
a car starts from rest at a check point A and comes to rest at the next check point B, 6km away, in 3min it has first a uniform
5 answers
asked by
Zobo
1,396 views
The volume of the region bounded by the y-axis, y=4 and y=x²?
3 answers
asked by
Zobo
359 views
When a know standard resistor of 2.0Ω is connected to the 0.Ocm end of a meter bridge,the balance point is found to be at
1 answer
asked by
Black mamba
333 views
A stone falls vertically past a window 2m high in 0.2s .find the height above the top of the window from which the stone was
2 answers
asked by
Percy jyotsna
798 views
A pointer attached to a sperical spring pointed to the 25.00mm mark on a scale when the spring was carrying a load of 0.1000N
2 answers
asked by
Kesh
517 views
a motor car is uniformly retarded and brought to rest from a velocity of 50km/h in 10sec. find its retardation and the distance
7 answers
asked by
Black mamba
2,545 views
A current of 21A is passed through a 20m length of two conducting wire placed 125 cm apart.Determine the force of attraction
3 answers
asked by
Black mamba
480 views
A coil of 50turns is pulled in 0.02secs from between the poles of a magnet where it's area includes 31× 10^-5 Weber to a place
1 answer
asked by
Black mamba
415 views
A fixed mass of an ideal gas absorbs 1000J of heat and expands under a constant pressure of 20 kPa from a volume of 25x10(-3) m3
3 answers
asked by
Black mamba
983 views
1,000 identical drops of oil of density 5000kg/m have
a total mass of 5 x 10kg. one of the drops forms a thin film of area 0.5m2
2 answers
asked by
FBI
483 views
A spiral spring of natural length 25cm has a scale pan hanging freely in its lower end. When an object of mass 45g is placed in
2 answers
asked by
FBI
536 views
A 6 by 100ml used drills is to plant 10kg of maize per hectare.if the diameter of the drive wheel is 2m. calculate (1) the width
1 answer
asked by
FBI
427 views
A helicopter pilot is on a heading of [180 degrees] with an airspeed of 125 km/h. If there is a 50 km/h wind blowing from the
1 answer
asked by
Alex
478 views
A man can still swim in water at speed 3km/h. He want to cross a river that flows at 2km/h and reach directly opposite to the
2 answers
asked by
Ehsan
615 views
1. To find the height of an overhead power line, you throw a ball straight upward. The ball passes the line on the way up after
4 answers
asked by
Naomi Onye
1,487 views
A meteoroid passes between the moon and earth a gravitational force of 600N pulls the meteoroid toward the moon. At the same
1 answer
asked by
Adrienne
620 views
A vector is defined as having magnitude of 15 m and a direction of East. Multiply this vector by the scalar value of -6. What is
1 answer
asked by
Gabby
407 views
A cannon fires a cannonball forward at a velocity of 48.1 m/s horizontally. If the cannon is on a mounted wagon 1.5 m tall, how
2 answers
asked by
Gabby
538 views
Two people pull as hard as they can on horizontal ropes attached to a boat that has a mass of 200 kg. If they pull in the same
3 answers
asked by
Kennan
702 views
Suppose an astronaut drops a feather from 1.6 m above the surface of the Moon. If the acceleration due to gravity on the Moon is
2 answers
asked by
Jay
509 views
A step-down transformer operates a 2400v and supplied a current of 60A. The turns ratio of the transformer is 1/24. Calculate
a)s
1 answer
asked by
Sannu Xeno
498 views
Two capacitors 5uF and 3uF are connected in parallel with each other,what is the equivalent of capacitance of the combination?
2 answers
asked by
Sannu Xeno
745 views
steam enters a turbine with a velocity of 16m/s and enthalpy 2950kj/kg . the steam leaves turbine with a velocity 32m/s and
2 answers
asked by
Sannu Xeno
503 views
A moving particle encounters an external electric field that decreases its kinetic energy from 9160 eV to 7160 eV as the
2 answers
asked by
Coco
530 views
Two resistors, 34.8 and 84.1Ω, are connected in parallel. The current through the 84.1-Ω resistor is 2.47A. (a) Determine the
1 answer
asked by
Coco
405 views
Two charges are placed on the x axis. One of the charges (q1 = +8.59C) is at x1 = +3.00 cm and the other (q2 = -25.6C) is at x2
2 answers
asked by
Coco
522 views
The current in a 62-Ω resistor is 0.15 A. This resistor is in series with a 25-Ω resistor, and the series combination is
3 answers
asked by
Coco
478 views
Three resistors, 1.17, 2.66, and 4.73Ω, are connected in series across a 13.4-V battery. Find the power delivered to each
1 answer
asked by
Coco
366 views
A nail on a vertical wall is pulled by means of a chord attached to its head if the chord makes an angle of 60deg to the
1 answer
asked by
El chapo
445 views
A tailor cut two pieces of clothes for two shirts. One price measures exactly 1.2m while the other measure 1m. What is the ratio
2 answers
asked by
El chapo
611 views
Calculate the displacement of an air craft that travels dew north for 78 minutes at 720km/hr
1 answer
asked by
Nonzamo
364 views
Calculate the displacement of an air craft that travels due north for 78minutes at 720km per hour
2 answers
asked by
Nonzamo
459 views
Background pertinent to this problem is available in Interactive LearningWare 18.3. A uniform electric field exists everywhere
2 answers
asked by
Steven
632 views
Two charges are placed on the x axis. One of the charges (q1 = +8.59C) is at x1 = +3.00 cm and the other (q2 = -25.6C) is at x2
1 answer
asked by
Arlo
420 views
A particle with a charge of -3.2 μC and a mass of 4.0 x 10-6 kg is released from rest at point A and accelerates toward point
1 answer
asked by
Carlos
505 views
I've managed to figure out question B but cannot figure out A, any help appreciated
Two particles, with identical positive
1 answer
asked by
Manny
411 views
An engineer in a locomotive sees a car stuck
on the track at a railroad crossing in front of the train. When the engineer first
3 answers
asked by
Erin
1,213 views
An engineer in a locomotive sees a car stuck
on the track at a railroad crossing in front of the train. When the engineer first
3 answers
asked by
Caleb
685 views
A high potential is applied
between the electrodes of a hydrogen discharge tube so that the gas is ionised. Electrons move
3 answers
asked by
El chapo
1,035 views
A man walks 5km due north and 12km due south determine his resultant displacement in magnitude and direction
3 answers
asked by
Faith
1,037 views
In the system to the right, the police are frictionless in the system hangs in equilibrium. Determine the value of each of the
1 answer
asked by
HA
429 views
In the system to the right, the pulleys are friction less and the system hangs in equilibrium. Determine the values of each of
2 answers
asked by
HA
564 views
A drone travels 17.0 km north, then 20.0 km west, then 21.0 km south, and finally 14.0 km east. The time for the entire trip is
1 answer
asked by
Gagan
361 views
You are standing in a valley with parallel vertical walls when a rockslide occurs on side. You see the slide and its sound 2.2
1 answer
asked by
Kelly Corona
344 views
A particle with a charge of -3.2 μC and a mass of 4.0 x 10-6 kg is released from rest at point A and accelerates toward point
2 answers
asked by
Anon
997 views
The changed pitch of the doppler effect is due to changes in what?
3 answers
asked by
Manish
1,347 views
calculate
the magnitude of electric field at a field point 3.0cm from a point Q=5.N/C?
1 answer
asked by
Sarah Banks
319 views
Monochromatic light (vacuum = 661 nm) shines on a soap film (n = 1.33) that has air on either side of it. The light strikes the
3 answers
asked by
Anon
698 views
A place kicker kicks a football at an angle of 42 degrees above the ground with a speed of 22 m/s. A) find time to max. height?
1 answer
asked by
Savannah
682 views
A boy pushing a wheelbarrow carry cement bags observe that the road was told with so much sand what can he do to ensure that he
1 answer
asked by
Maballs
350 views
a mover is pushing on a very large box with a force of 850N but he cant get it to move. what force is the box exerting on the
1 answer
asked by
Bianca
871 views
How much heat is necessary to change 430 grams of ice -9 Celsius to water at 20 Celsius.
2 answers
asked by
Kelly
604 views
A body is under the action of two forces 7N and 10N , find the resultant of the two vectors if the two forces are inclined at
2 answers
asked by
Oriji Godswill
769 views
Stanley with skin temperature of 37°c rest in a room where the temperature of the wall is 30°c. Determine the net rate of heat
1 answer
asked by
Steve
338 views
A uniform bar AB is balanced on a knife edge which is 60cm from B by a mass of 22g which hangs at C 20cm from A. Calculate the
2 answers
asked by
Miracle
505 views
A cheetah can run at a maximum speed
103 km/h and a gazelle can run at a maximum speed of 74.3 km/h. If both animals are running
3 answers
asked by
Anonymous
1,050 views
Three resistors R1=5ohms, R2=3ohms, and R3=4ohms are connected in series to each other. A voltmeter connected in parallel to
3 answers
asked by
Maballs
2,687 views
convert (a) 353k to celcius (b) 60°c to k (c) 252°F to celcius (d) 45°c to farenlet?
1 answer
asked by
Maballs
329 views
A person standing at the edge of a seaside cliff kicks a stone, horizontally over the edge with a velocity of 18 m/s. The cliff
4 answers
asked by
12345
586 views
While John is traveling along an interstate highway, he notices a 160-mile marker as he passes through town. Later John passes
3 answers
asked by
Ashley
728 views
Light from the sun reaches earth in 8.3 min. The velocity of light is 3.00 x 10^8 m/s. How far is earth from the sun.
2 answers
asked by
Ashley
1,020 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N.
2 answers
asked by
Anonymous
1,053 views
An aeroplane's compass indicates that it is headed due to North, and it airspeed indicator shows that is moving through the air
3 answers
asked by
Khushi
1,950 views
Two forces are applied to a car in an effort to move it, as shown in the following figure, where F1 = 453 N and F2 = 400 N.
2 answers
asked by
Anonymous
589 views
I need the answers
Fx = 453 cos 8 + 400 cos 35 Fy = 453 sin 6 + 400 sin 35 |F| = sqrt ( Fx^2 + Fy^2) tan theta = Fy/Fx where
1 answer
asked by
Anonymous
384 views
Ann is driving down a street at 55 km/h. Suddenly a child runs into the street. If it takes Ann 0.75 s to react and apply the
4 answers
asked by
Ashley
1,436 views
You dive a car 2.0 h at 40km/h , then 2.0 h at 60 km/h
A) what is you average velocity B) do you get the same answer if you drive
3 answers
asked by
Ashley
637 views
1. A 601 kg car stopped at an intersection is rear-ended by a 1880 kg truck moving with a speed of 14.5 m/s. If the car was in
2 answers
asked by
Naomi O
510 views
a fur trapper hikes north for 30mins at 5km/hr, and then heads 45 degrees north of east, walking 5km in 60mins. She finishes
1 answer
asked by
Web
352 views
A uniform pole 7m long weighting 10kg is support by a boy 2m from one end and a man 3m from the other end. At what point must a
2 answers
asked by
Abigail
520 views
The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.75 ✕ 104 kg/s, with an exhaust speed of 2.70
4 answers
asked by
Naomi O
1,315 views
Show that the electric potential of carbon nucleus of equivalent charge +6e at a distance of 1x10^-10 m from a carbon nucleus
3 answers
asked by
Lavender
417 views
A mathematically inclined friend emails you the following instructions: "Meet me in the cafeteria the first time after 2:00 p.m.
2 answers
asked by
Naomi Onye
533 views
Please help i have done this problem several times i dont know what is wrong?
After you pick up a spare, your bowling ball rolls
3 answers
asked by
Naomi Onye
656 views
In the javelin throw at a track-and-field event, the javelin is launched at a speed of 29 m/s at an angle of 36 degrees above
3 answers
asked by
Sarah
871 views
Among the safety features on elevator cages are spring-loaded brake pads which grip the guide rail if the elevator cable should
2 answers
asked by
Corey
596 views
A 240volts is applied to a primary coil of a step up transformer. What is the ratio of the secondary turn to the primary turns,
3 answers
asked by
Samba mambo
447 views
an elastic string stretched to a total Length of 30 under a load of 500N. with an additional load of 100N, the string stretches
3 answers
asked by
Samba mambo
584 views
A baggage carousel at an airport is rotating with an angular speed of 0.21 rad/s when the baggage begins to be loaded onto it.
2 answers
asked by
Naomi Onye
571 views
A particle of mass a moves along a space curve defined by
r(t) =(4t^2 - t^3)i + 5tj - (t^4 - 2)k Find the torque about the
3 answers
asked by
Aryaa
517 views
The screen of a pin-hole camera is a square, of side 0.16m and it is 0.15m behind the pin-hole. The camera is placed 11m from a
1 answer
asked by
Prof lambchop
511 views
please help keep getting these wrong
(a) What is the escape speed on a spherical asteroid whose radius is 515 km and whose
1 answer
asked by
naomi
461 views
A 1000 kg car strike a tree at 30 km/hr and comes to a stop in 0.15 s.
What is its initial momentum and average force on the car?
2 answers
asked by
Lanbax
740 views
You're on a train that is moving at 160 km/h and decide to run
towards the rear of the railroad car. The length of the car is 18
3 answers
asked by
Ashley
372 views
A uniform rod AB, 100cm long and of mass 2kg is supported horizontally at points P and Q, 40cm and 65cm respectively from A. A
3 answers
asked by
Lenn fenland
746 views
What scale should I take for (16,24,47,94,141,188)on x-axis and (15.6,23.1,42.6,82.6,116.3,149.3) on y-axis in a4 size graph?
1 answer
asked by
Raj
248 views
What scaling can I take on A4 size graph for readings through experiment (16,24,47,94,141,188) on x-axis and
1 answer
asked by
Raj
271 views
A particle is shot into a magnetic field region as shown in the figure.
If the particle is shot in with a speed of 𝑣=392 m/s,
1 answer
asked by
Safina
437 views
A centrifuge rotor has a moment of inertia of 3.85x10^-2 kg per m squared. How much energy is required to bring it from rest to
1 answer
asked by
Anonymous
446 views
How is it solved and what formula should be used?
1 answer
asked by
Ogbu Oscar
302 views
A horizontal pipe carries oil whose coefficient of viscosity is 0.700 N·s/m2. The diameter of the pipe is 46.0 cm and its
1 answer
asked by
naomi
641 views
A body of density 9.0g/cm^3 appears to have a mass of 27.0g in a liquid of density 1.2g/cm^3.what is the volume of the solid
2 answers
asked by
Ayomide
602 views
Calculate the force required to submerge a wood of mass 200g and volume 1000cm3
1 answer
asked by
GRACE TIMOTH NKONGO
306 views
A vertical string(ignore its mass),whose spring constant is 875N/m is attached to a table and is compressed down by 0.16m.what
2 answers
asked by
EFRANGE
949 views
Physics
1 answer
asked by
Anonymous
379 views
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