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If it takes a particle in SHM 0.20 s to travel from the equilibrium position to the maximum displacement (amplitude), what is
4 answers
asked by
Amy
473 views
A student reading his physics book on a lake dock notices that the distance between two incoming wave crests is about 0.65 m,
2 answers
asked by
Amy
650 views
If 0.045 kg of ice at 0 C is added to 0.390 kg of water at 34 C in a 0.150 kg aluminum calorimeter cup, what is the final
1 answer
asked by
Anonymous
494 views
A husband buys a helium-filled anniversary balloon for his wife. The balloon has a volume of 4.4 L in the warm store at 74 F.
1 answer
asked by
Anonymous
416 views
In a dramatic lecture demonstration, a physics professor blows hard across the top of a copper penny that is at rest on a level
2 answers
asked by
Chao
936 views
The spout heights in the container in the figure are 15 cm, 30 cm, 45 cm, and 60 cm. The water level is maintained at a 68 cm
1 answer
asked by
Bret
1,084 views
A 89.0 kg person stands on one leg and 90% of the weight is supported by the upper leg connecting the knee and hip joint-the
2 answers
asked by
Bret
550 views
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
1 answer
asked by
Catherine
485 views
A 3.8 kg object is supported by an aluminum wire of length 1.9 m and diameter 2.2 mm. How much will the wire stretch?
2 answers
asked by
Maria
684 views
The gravitational forces of the Earth and the Moon are attractive, so there must be a point on a line joining their centers
2 answers
asked by
Anonymous
616 views
Just an instant before reaching the very bottom of a semicircular section of a roller coaster ride, the automatic emergency
2 answers
asked by
Jason
547 views
Consider a 1.8 kg ball and a 5.2 kg ball in free fall. What is the net force acting on each? What is the acceleration of each?
1 answer
asked by
Anonymous
292 views
A race car makes two and a half laps around a circular track in 4.5 min. What is the car's average angular speed?
2 answers
asked by
Anonymous
640 views
what happens to the force (magnitude and direction) on the wire when
(i) the size of the current through the wire is increased ?
2 answers
asked by
Janice
580 views
These three are connected to 240V main supply :
Grill = 6A Desk lamp = 0.6A Convector heater = 4.5 a(ii) which of these has the
2 answers
asked by
Janice
531 views
Fan -- 15W
Heating elements -- 1.2kW Mains -- 240 A) calculate the weekly cost of having the fan heater with the warm air setting
3 answers
asked by
Janice
393 views
what is the focal length of a plane mirrior which is 4m tall?
1 answer
asked by
Daniel
356 views
A speedy tortoise can run at 0.14m/s, and a hare can run 15 times as fast. In a race, they start at the same time, but the hare
2 answers
asked by
Domonique
992 views
A point charge q1=-8 is located at the orgin of a rectangular coordinate system. A second charge q2=6nC is located at a distance
2 answers
asked by
Nikki
952 views
How long would it take a laser beam to go to the Moon and back if the distance to the Moon is 3.8 x 108 m?
I know that Velocity
3 answers
asked by
Michelle
1,305 views
Assuming no air resistance, how long does it take a penny to fall if it was dropped from the CN Tower (553 m)? Acceleration due
3 answers
asked by
Anonymous
1,107 views
Assuming no air resistance, how long does it take a penny to fall if it was thrown down with an initial velocity of 5.0 m/s from
1 answer
asked by
Anonymous
578 views
A 55-kg female bungee
jumper fastens one end of the cord (made of elastic material) to her ankle and the other end to a bridge.
3 answers
asked by
Michelle
917 views
A dolphin experiences a force of 320 N [up]
when it jumps out of the water. The acceleration of the dolphin is 2.6 m/s 2 [up].
3 answers
asked by
Michelle
838 views
A 23.0 kg block is sitting on the ground. Two ropes are attached to the top of the block. Rope A is pulled upward with a force
2 answers
asked by
Michelle
566 views
A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is
4 answers
asked by
Nikki
1,356 views
An electric motor rotating a workshop grinding wheel at a rate of 114 rev/min is switched off. Assume the wheel has a constant
3 answers
asked by
Anthony
760 views
A machine part is made from a uniform solid disk of radius R = 0.161 m and mass M = 7.75 kg. A hole of radius R/2 is drilled
2 answers
asked by
jean
556 views
A student walks to school 3 blocks North. For lunch he walks to Mcdonald's 3 blocks North. After lunch he returns home 6 blocks
2 answers
asked by
BJ
613 views
The moon orbits the earth a a speed of 1.02 Kilometers per second. Use dimensional analysis to convert this speed into miles per
1 answer
asked by
Susie
360 views
A plane is traveling at 90 miles per hour due south. What do we know about it? the speed, its velocity or both its speed and its
1 answer
asked by
Eddie
405 views
A cheetah can accelerate at a rate of 8.0 M/S^2. Assuming it starts from rest, what will its velocity be after 3.5 SECONDS?
3 answers
asked by
Melissa
381 views
Two charges of equal magnitude of 2C and mass of 1.0 g are separated by a distance of 3 mm. Find the velocity of one particle
2 answers
asked by
Catherine
660 views
What is comet how it fall
1 answer
asked by
Vivek
361 views
A ball is projected vertically up word from the top of tower 60m ,hight with velocity 30m ,what is the mex heigh above the
3 answers
asked by
Anonymous
642 views
a series RLC circuit has a peak current of 4 A with a frequency of 23 kHz. if the resistance of the circuit is 60 kohm, the
2 answers
asked by
Fatih
635 views
the current to an LC circuit is being supplied according to the function I(t)=2*sin(7t). what is the smallest value of t for
1 answer
asked by
Fatih
316 views
the current to an LC circuit is being supplied according to the function I(t)=2*sin(7t). what is the smallest value of t for
1 answer
asked by
Fatih
407 views
If the specific gravity of ice is 0.92, what is the mass of one cubic meter of ice in grams?
1 answer
asked by
Ty
351 views
If a circular space station has on outside radius of 750Km, how fast must the space station rotate in order to give an astronaut
1 answer
asked by
Ernest
1,060 views
Before continuing we need a little more information about the angle factor given in the formula above. It turns out that the
1 answer
asked by
Luis
435 views
How can we describe some object in astronomy?
How can we interpret data? Can we either prove or disprove a hypothesis? If not,
1 answer
asked by
Luis
313 views
How can we describe some object in astronomy?
Can we either prove or disprove a hypothesis? If not, what can we do? How have
1 answer
asked by
Luis
323 views
Calculate the average speed of an oxygen molecule (with a mass of 5.3e-26 kg) at room temperature (300 Kelvin)show your work
1 answer
asked by
Luis
462 views
While surface conditions differ greatly, name the three ways that Venus and Earth are indeed sister planets.
2 answers
asked by
Luis
984 views
The tidal interaction between the Earth and the Moon has caused:
1 answer
asked by
Luis
284 views
You must show your work for full credit.) Calculate the average speed of an oxygen molecule (with a mass of 5.3e-26 kg) at room
1 answer
asked by
Luis
378 views
What are the primary differences between the different types of objects that live in the solar system?
3 answers
asked by
Gerson
783 views
What are some sources of energy that are available to heat the interiors of planets?
2 answers
asked by
David
878 views
What is the electromagnetic flux coming from the surface of a 2000K blackbody? (
1 answer
asked by
sONY
345 views
What is the source of the sun's energy?
1 answer
asked by
David
301 views
The field of an unknown charges is first mapped with a 1.0 X 10^-8 C test charges, then repeated with 2.0 X 10^-8 C test charge.
1 answer
asked by
sara
465 views
If a clock in an airplane is found to slow down by 5 parts in 1013, (i.e., ∆t/∆to = 1.0 + 5.0 × 10. −13), at what speed
1 answer
asked by
Sanaz
352 views
A sodium-vapour lamp illuminates, with monochromatic yellow light, two narrow slits that are 1.00 mm apart. if the viewing
1 answer
asked by
Sanaz
602 views
A sodium-vapour lamp illuminates, with monochromatic yellow light, two narrow slits that are 1.00 mm apart. if the viewing
3 answers
asked by
sara
944 views
If a clock in an airplane is found to slow down by 5 parts in 1013, (i.e., ∆t/∆to = 1.0 + 5.0 × 10. −13), at what speed
3 answers
asked by
sara
352 views
One gallon of paint (3.79 Liters) covers an area of 26.0 m2. What is the thickness (in mm) of the fresh paint on the wall.
Please
1 answer
asked by
Kenny
451 views
Type A nerve fibers in humans can conduct nerve impulses at speeds up to 139.8 m/s. How fast is this in mph?
This is a question
2 answers
asked by
David
579 views
Can anyone help me with this question> Thanks you
You are part of a team to help design the atrium of a new building. Your boss,
1 answer
asked by
Hieu Chu
611 views
Can someone help me with this problem please.
An indoor running track is square-shaped with rounded corners; each corner has a
1 answer
asked by
Janet Nguyen
406 views
A ball is thrown upward. What is its initial vertical speed? The acceleration of gravity is 9.8 m/s^2 and maximum height is 7.2
3 answers
asked by
Patrick
1,304 views
A dam is used to block the passage of a river and to generate electricity. Approximately 58.4 x 103 kg of water falls each
3 answers
asked by
Monet Nguyen
3,251 views
I am confuse about this one question can some one please help me.
The Navy wants a new airplane launcher for their aircraft
1 answer
asked by
Janki Patel
1,196 views
Salmon, swimming up the Fraser river to their spawning grounds, leap over all sorts of obstacles. The unofficial salmon-altitude
2 answers
asked by
Steeve
681 views
A bullet with a mass of 4.0 g and a speed of 736 m/s is fired at a block of wood with a mass of 0.075 kg. The block rests on a
2 answers
asked by
Hey
1,053 views
A 10 kg particle moving along the x-axis experiences the force shown in figure. The particle goes from v=1.0m/s at x=0 and v=5.0
2 answers
asked by
J
598 views
A CD rotates from rest up to an angular speed of 32.40 radians per second in a time of 0.861 seconds. Determine the angle (in
1 answer
asked by
Janki Patel
377 views
Can some one help me with this question.
A uniform 119.0 cm long, 78.0 gram wooden rod is suspended from it midpoint. On one end
2 answers
asked by
Mary Pinzon
530 views
A father pushes horizontally on his daughter's sled to move it up a snowy incline, as illustrated in the figure, with h = 3.7 m
3 answers
asked by
Thanh
718 views
Air moving at 13.0 m/s in a steady wind encounters a windmill of diameter 2.30 m and having an efficiency of 29.0%. The energy
1 answer
asked by
Thanh
396 views
Air moving at 13.0 m/s in a steady wind encounters a windmill of diameter 2.30 m and having an efficiency of 29.0%. The energy
1 answer
asked by
Thanh
461 views
A wheel-and-axle system shown consists of two coaxial wheels of radius r = 2 meters and R = 6 meters. The forces applied to the
2 answers
asked by
Anonymous
559 views
A wheel-and-axle system shown consists of two coaxial wheels of radius r = 2 meters and R = 6 meters. The forces applied to the
1 answer
asked by
Anonymous
915 views
A box with a weight of 22N falls through the air with a wind resistance of 14N, what is the mass of the box and the acceleration
4 answers
asked by
Mac
1,490 views
A lamp filament is made of tungsten. Why do we get a continuous spectrum rather than a tungsten line spectrum when light from an
2 answers
asked by
shelly
1,286 views
A block (mass 2.4 kg) is hanging from a massless cord that is wrapped around a pulley
-3 2 (moment of inertia of the pulley = 1.3
1 answer
asked by
Jess
1,058 views
A stone 817kg has an 91.9 acceleration. What's the net force
1 answer
asked by
Michael
270 views
A ball is thrown horizontally from a cliff at a speed of 15 m/s and strikes the ground 45 meters from the base of the cliff. How
3 answers
asked by
Unknown
1,851 views
A pickup truck has a width of 78.9 in. If it is traveling north at 36 m/s through a magnetic field with vertical component of 33
2 answers
asked by
John
506 views
An aluminum ring of radius 5.00 cm and resistance 2.00 10-4 Ω is placed around the top of a long air-core solenoid with 997
3 answers
asked by
John
522 views
How much work W is required to accelerat a 1000kg object from initial velocity of 100m/s to a final velocity of 200m/s?
1 answer
asked by
Cynthia. Rodgers
306 views
Reaction at support and internal axial force resultant
Consider two straight bars of uniform cross section made of the same
3 answers
asked by
asas
681 views
A steel bar of length L=2 m, with modulus E=200 GPa and constant cross sectional area A=200 mm2 is constrained between two walls
10 answers
asked by
Time
510 views
The composite bar BCD in the figure is composed of an inner aluminum cylindrical core of length 2L=2 m and radius R=1 cm, and a
9 answers
asked by
Me
471 views
Now find a symbolic expression (in terms of A,E,a,L ) for the x-component of the applied concentrated load Fx and for its
1 answer
asked by
JBL
313 views
Now, obtain N(x) and plot it.
In the Command Window below, enter expressions for N1 and N2 where N1 =N (x1) N2 =N (x2)
1 answer
asked by
DELL
326 views
The built-in composite bar BC of length L=2 m is composed of two materials with equal cross sectional area A = 100 mm2. The
1 answer
asked by
DELL
463 views
A bar has a constant cross sectional area A. The bar is devided in 2 segments segment 1 (1/3 of the bar) and segment 2 (2/3 of
2 answers
asked by
Eatingapple
509 views
Me and my friend are playing on a Ferris wheel which has Radius of 20 Meter and had an constant angular velocity of 0.2 rad/s .
T
1 answer
asked by
Dave
375 views
a steel ball dropped from a helicopter, and after 4s its acceleration is 8m/s. with freefall given iirs physics definition, the
1 answer
asked by
Amy
368 views
A body was lifted 2m above the ground and then dropped. It hit the ground with 5 kg of kinetic energy. How much work was done to
1 answer
asked by
Amy
401 views
A plane progressive wave is represented by the
equation: y= 0.1sin(200pi(t)-20pi/15(x)) where y is the displacement in metres, t
4 answers
asked by
Johm
1,751 views
A car traveling 100 km/h is 200m away from a truck traveling 50 km/h (in the same direction). Assuming constant braking
3 answers
asked by
Shadow
608 views
An elevator weighing 2000 kg falls with a downward acceleration of magnitude (1/2)g . What is the tension in the supporting
1 answer
asked by
Shadow
386 views
A horizontal Electric Field is applied to the original spring-mass system as shown below:
What is the tangent of the angle θ
1 answer
asked by
solid chem
331 views
What is relationship between the mass and terminal velocity
1 answer
asked by
Tr.N
317 views
A horizontal force F pulls a mass m across the floor at constant speed a distance d. If the coefficient of friction between box
3 answers
asked by
Shadow
484 views
A small glass bead that has been charged to 4.4 nC? What is the strength of the electric field 2.0 cm from the center of the
2 answers
asked by
Peri
813 views
a small sphere with a mass of 108.0 g is moving along the y-axis when it encounters an electric field of 5.0i N/C . If the
1 answer
asked by
Jale
481 views
Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and
2 answers
asked by
Alia
544 views
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