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physic
Page 6
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you are standing on the edge of a frozen pond next to the tree. you decide that you need to get away from the bear by backing up
2 answers
asked by
ct scan
578 views
A kid with a mass of 30 kg slides down a slide 2.5 meters high from rest
a. What was his speed at the bottom? b. If his speed was
3 answers
asked by
Laurdiel
1,370 views
Nora’s car is run out of gas and she noticed that a gas station is just 125 feet away the incline road. She decided to push
2 answers
asked by
anis
538 views
an empty rubber balloon has 0.0120 kg it filled of helium. the density of helium is 0.179 kg/m^3 of and the radius of the
1 answer
asked by
Sue
836 views
A concave mirror produce six times magnified image virtual of an object placed at 5cm in front in it. Where is the image formed
2 answers
asked by
Ik
762 views
if the gravitational force f is given by F=GM1M2/r^2, derive the dimension if the constant G.
2 answers
asked by
yaro
585 views
A resultant force of 200N act on a body of mass 100kg for ss what is the impulse of the force on the body.
4 answers
asked by
Sunday
566 views
What is the formula for finding kinetic energy
3 answers
asked by
ibrahim
411 views
A car starts from the origin and is driven 1.3 km south and then 3.5 km in a direction 53° north of east. Relative to the
1 answer
asked by
Pallavi
466 views
The acceleration due to gravity on the moon is 1.6/se. What does a 10kg mass weigh on the moon?
1 answer
asked by
monquie
448 views
A ball is thrown straight upward and returns to the thrower's hand after 2.00 s in the air. A second ball thrown at an angle of
2 answers
asked by
mark
839 views
A brick is thrown upward from the top of a building at an angle of 35° to the horizontal and with an initial speed of 15 m/s.
3 answers
asked by
mark
651 views
A figure skater glides along a circular path of radius 5.20 m.
(a) If she coasts around one half of the circle, find the
2 answers
asked by
mary
1,158 views
A concave makeup mirror is designed so that a person 29 cm in front of it sees an upright image magnified by a factor of two.
1 answer
asked by
megan
626 views
The object weighing 20 N is hung on the bottom of the spiral spring , so that stretch as far as 9.8 cm after a state of balance
2 answers
asked by
drJon
485 views
The block shown in Figure 6 has mass 3500 g and lies on a plane which tilted at an angle θ = 22° to the horizontal. The
2 answers
asked by
Mustaqim
592 views
A rod is 2.40 m long and has a diameter of 2.50 mm. A force of 2000 N is applied to the end to stretch the rod by 1.40 mm. What
1 answer
asked by
ngeyoo
875 views
A stretched string fixed at each end has a mass of 39.3 g and a length of 9.3 m. The tension in the string is 47.7 N. Given
1 answer
asked by
mazni
446 views
A 2000 N sled is pulled along a horizontal surface with a constant force by means of a rope that makes an angle of 30.0o with
2 answers
asked by
sk
819 views
Two forces 5N and 10N act on a body in the direction due North and east respectively at an angle 75 degree. Calculate the
4 answers
asked by
samuel
1,056 views
Two forces of magnitude 4.ON ans 7.0N act on a small object b. The angle btw the direction along which the force is 50
4 answers
asked by
samuel
1,329 views
three cell of 2.0, .5,1.8v are connected in series.
if their battery are connected to an external resistance 4 ohms. calculated
1 answer
asked by
Arghadeep sarma
427 views
A hand-driven tire pump has a piston with a 2.50 cm diameter and a maximum stroke of 30 cm. how much work do you do in one
3 answers
asked by
lana
782 views
Which of the following statements incorrectly describes a scenario where the source of the sound waves and the person hearing
1 answer
asked by
sam
506 views
Which of the following statements incorrectly describes a scenario where the source of the sound waves and the person hearing
2 answers
asked by
sam
568 views
An ant with mass 0.15 g lands on one end of a floating 4.75 g stick. After sitting at
rest for a moment, it runs toward the other
1 answer
asked by
mad
408 views
All of the following forces are central force, EXCEPT
A)Coulomb force B) Frictional force C)Gravitational force D)Electrostatic
1 answer
asked by
mad
492 views
A particle is pushed horizontally by a constant horizontal force of magnitude F, which
starts from the rest at x=0 in the
1 answer
asked by
mad
645 views
Kirsten’s mass is 3.73 slugs. Being the physics fan that she is, she decides to see what her apparent weight will be during an
4 answers
asked by
hassan yousif
896 views
A motorcycle racer traveling at 145 km/h loses control in a corner of the track and slides across the concrete surface. The
4 answers
asked by
hassan yousif
1,342 views
The motorcycle and rider are sliding with the same acceleration as found in Problem 4. If the motor- cycle and rider have been
3 answers
asked by
hassan yousif
783 views
A 2000 kg car is traveling at 20.0 m/s. Then, it puts on the brakes and comes to a complete stop. The heat generated due to the
3 answers
asked by
aina
924 views
A tennis ball is projected
horizontally from the top of a cliff 50m high with a velocity of 10ms -1 , find (a) the time taken to
4 answers
asked by
jaja
1,924 views
the light from a helium neon laser has a wavelength of 632 nanometers in air. the same light has a wavelength of 479.2 in glass.
3 answers
asked by
gerl
835 views
Somehow two students managed to open two windows at the library. Student A is 17 m above the ground and Student B is 23.5 m
2 answers
asked by
Angel
539 views
Somehow two students managed to open two windows at the library. Student A is 17 m above the ground and Student B is 23.5 m
2 answers
asked by
Angel
540 views
a stone is drop from the top of a building and at thesame time a second stone is thrown vertically upward from the botom of the
3 answers
asked by
Timoty
505 views
The brakes on a car permit it to decelerate at the rate of 0.80 m/s2. How much distance is required to stop this car when it is
2 answers
asked by
Michelle
1,137 views
a car travels 3.0km due south and then4.0km west what is lt's displacememt from the starting point
1 answer
asked by
precious
466 views
two force10n and20n are inclined at an angle 60 degree to each.find the resultant forces are now made to be inclined at120degree
3 answers
asked by
precious
650 views
two sorces of resultant100N are perpendicular to each other.if one of them makes angle60degree with the resultant calculate the
1 answer
asked by
precious
366 views
A 0.5 kg object at 16°C is put into a beaker containing 2 kg of water at 25°C. By assuming that no heat is lost to the
2 answers
asked by
Riz
503 views
a cold drink bottle of 500 ml weight 25g .when a liquid is filled in it ,it weight 80g .find the density of liquid .
4 answers
asked by
neha
1,389 views
a stone starts to fall from rest positon from of top of the hill.it hits the ground with velocity 112 m/s. how to calculate the
1 answer
asked by
remon
332 views
A projectile is projected at an angle 300 with the horizontal with the velocity 30 ms-1
. What is the time of flight
4 answers
asked by
A projectile is projected at an angle 300 with the horizontal with the velocity 30 ms-1 . What is t
434 views
a skater with moment of inertia 15 kgm2 begins a spin with an angular speed of 6.0 rad/s by changing the position of her arms,
1 answer
asked by
amro
876 views
A long wire carrying a 6.0 A current perpendicular to the xy-plane intersects the x-axis at x=−2.0cm. A second, parallel
3 answers
asked by
Anonymous
1,030 views
A block of gold having dimension of 1.2 m long, 0.8 m width and 0.4 m thick. What is the mass of the block?
2 answers
asked by
lolo
459 views
what form of energy can be coverted from sound to light?
1 answer
asked by
KO
319 views
The string on a violin has a fundamental frequency of 150.0 Hz. The length of the vibrating portion is 36 cm and has a mass of
1 answer
asked by
kassy
472 views
At T= 20 degrees C, how long (in meters) must an open organ pipe be if it is to have a fundamental frequency of 240.0 Hz?
1 answer
asked by
kassy
467 views
How fast (in meters/second) is an object moving on the earth, if its speed is specified as Mach 0.2 ?
1 answer
asked by
kassy
366 views
A wheel 0.5m in radius is moving with a speed of 12m/s.find its angular speed ?
2 answers
asked by
Indrajeet raiger
889 views
an object is projected at an angle of elevation of 45 degree with a velocity of 100m/s.calculate its range and time of flight
3 answers
asked by
dae
542 views
150g of ice at 0 degreecelcius is mixed with 300g of water at 50 degreecelcius.calculate the temperature of the mixture.
3 answers
asked by
damilola
852 views
y(x,t) = (6.50 mm)sin2pi((t/0.0360 s)-(x/0.280m))
Determine the wave's (a) amplitude (b) wavelength (c) frequency (d) speed of
1 answer
asked by
jun
718 views
An object of mass m, volume v, is totally immersed in a liquid of density e, the tension of a strings holding it is?
1 answer
asked by
Paul Maxwell
438 views
A particle of mass 10kg Move in a circular orbit of ratio 2cm with a linear velocity of 0.2m/s calculate the angular velocity,
1 answer
asked by
Fatima
362 views
If an erect person's systolic pressure is measured at 120 mm-Hg at the level of heart, please calculate the arterial systolic
1 answer
asked by
sara
487 views
How much heat is required to raise the temperature of 100g of copper from 293 kelvin to 373 kelvin(specific heat capacity of
2 answers
asked by
nkagbu ernerst
474 views
a body is projected horizontally with a velocity of 20m/s from height of a tower 160m above the ground calculate the time of
4 answers
asked by
praizefavor
1,399 views
At what temp will the vilocity of sound be double its value at 273k
A 1042k B 1097k C 1092k D 1121k
1 answer
asked by
Ananya
297 views
the sunlight rae about 46 degree in a tree if the hight of trre is 8 what is length of the shadow
1 answer
asked by
ramish
326 views
1. A 57 g tennis ball is moving to the left at 36.2 m/s. It collides with a wall and rebounds to the right. The tennis ball is
3 answers
asked by
dan
673 views
A small fly wheel fitted to a motor with a moment of inertia of 80 kg m² slows down from 9000 rpm to 5500 rpm in 7.5 seconds.
Fo
1 answer
asked by
john
420 views
if the length of wire is incrase by 20% then?what is the % incrase in resistance
1 answer
asked by
deepak
270 views
Sample 1, Original Length 250 mm and 10 mm Diameter, Length after testing 250.23 mm the force used for the test was 15KN
Calculat
1 answer
asked by
abdul
416 views
Sample 1, Original Length 250 mm and 10 mm Diameter, Length after testing 250.23 mm the force used for the test was 15KN
Sample
2 answers
asked by
jake
516 views
I need the answer for these 2 questions:
1)How is X-ray produced and why can it be used to help us see the structure inside the
1 answer
asked by
john
460 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
2 answers
asked by
micky
577 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
rob
439 views
A 360kg mine at rest explodes into 3 pieces x,y and z.piece x has a mass of 12kg and it moves with 90m/s .piece x has a mass off
4 answers
asked by
Rolyn
467 views
c. A 2 kg block of ice has been stored in a chiller at a constant 0°C. In order to carry out an investigation, the block of ice
4 answers
asked by
Albert Einstein
703 views
Explain, with examples, what the heat transfer process is in single materials and composites.
200 word Please help.
1 answer
asked by
hgfty
328 views
A particle moving with uniform retardation covers distance 18 M, 14 M and 10 m in successive seconds it comes to rest after
1 answer
asked by
ruchiket
635 views
Two stones are thrown vertically upwards with the same velocity of 49m/s. If they are thrown one after the other with 3 seconds
2 answers
asked by
ruchiket
1,345 views
a wooden block of density 860 kg per metre cube at zero degree celsius is floating on benzene liquid of density 900 kg per metre
2 answers
asked by
ruchiket
783 views
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest
2 answers
asked by
Jack
1,109 views
Vector a Overscript right-arrow EndScripts has a magnitude of 5.20 m and is directed east. Vector b Overscript right-arrow
4 answers
asked by
shehab
504 views
Calculate the average angular velocity and the average linear velocity of the tip of a 10 cm long second- hand of a watch.
3 answers
asked by
Intakhab
1,300 views
unit of distance used in astronomy is the parsec (pc):
1 pc = 3.26 ly. The distance to the Earth's next-nearest star,
2 answers
asked by
joy
1,075 views
A race car travels 950 km around a circular sprint track of radius 1.343 km. How many times did it go around the track?
2 answers
asked by
joy
1,156 views
A particle's position is given by
z(t) = −(8.10 m/s^2)t^2k for t ≥ 0. (Express your answer in vector form.) (a) Find the
2 answers
asked by
joy
677 views
An electronic line judge camera captures the impact of a
57.0-g tennis ball traveling at 32.8 m/s with the side line of a tennis
3 answers
asked by
joy
1,864 views
Crall and Whipple attached a fan to a cart placed on a level track and then released the cart. They made a position-versus-time
2 answers
asked by
joy
1,114 views
A sounding rocket, launched vertically upward with an initial speed of
79.0 m/s, accelerates away from the launch pad at 5.70
3 answers
asked by
joy
2,286 views
Tadeh launches a model rocket straight up from his backyard that takes 6.96 s to reach its maximum altitude. (After launch, the
3 answers
asked by
joy
1,452 views
Vector A,with a magnitude of 23 units, points in the positive x direction. Adding vector B to vector A
yields a resultant vector
7 answers
asked by
joy
2,766 views
Vector B has a magnitude of 21.50. Its direction measured counterclockwise from the x axis is 125.0°. Find its vector
4 answers
asked by
joy
1,085 views
What is the magnitude of the displacement between the initial and final points
1 answer
asked by
joy
311 views
How do I find the magnitude of the displacement between the two points. It start at point(0,2.024) and end at point(19.26,1.210)
1 answer
asked by
joy
378 views
Vector Fis proportional to vector A such that F = mA and m is a scalar.
(a) If A = 2.0i + 5.2j and F = 10.0i + 26.0j,what is m?
2 answers
asked by
joy
1,013 views
A firecracker explodes into four equal pieces (see figure below). Given the magnitude and direction of the velocity for each
4 answers
asked by
joy
1,791 views
he magnitudes are F1 = 1.81f,F2 = f,and
F3 = 2.00f,where f is a constant. (a) Use the coordinate system shown in the figure above
2 answers
asked by
joy
964 views
Consider the vectors A = 15.5i − 39.4j and B = −2.15i + 2.65j − 4.05k. Find
R = B − A in component form.
1 answer
asked by
joy
340 views
Three vectors are shown in the figure below, but they are not drawn to scale. The sum of the three vectors is
R = F1 + F2 + F3.
4 answers
asked by
joy
2,104 views
A projectile is launched up and to the right over flat, level ground. Its range is equal to half of its maximum elevation above
3 answers
asked by
joy
1,122 views
A circus performer throws an apple toward a hoop held by a performer on a platform (see figure below). The thrower aims for the
4 answers
asked by
joy
2,145 views
A circus performer stands on a platform and throws an apple from a height of 50 m above the ground with an initial velocity
v0 as
7 answers
asked by
joy
4,451 views
A child swings a tennis ball attached to a 0.662-m string in a horizontal circle above his head at a rate of 4.50 rev/s.
(a) What
3 answers
asked by
joy
1,154 views
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