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Physics
Page 56
Questions (147,517)
A Petrol Engine Raises 200litres Of Water In A Well From A Depth Of 7m In 6 Sec.What Is The Power Of The Engine?
6 answers
asked by
Abe
2,321 views
a 0.300kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.80 m/s when it makes a head on
5 answers
asked by
chyenne
7,503 views
A 9.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates
7 answers
asked by
Kayla
3,227 views
A flat mirror that is 0.85m tall is attached to a wall so that its upper edge is 1.7m above the floor. Use the law of reflection
4 answers
asked by
Ashley
2,923 views
A 0.054-kg pet lab mouse sits on a 0.35-kg air-track cart, as shown in (Figure 1) . The cart is at rest, as is a second cart
4 answers
asked by
anonymous
10,063 views
Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a
5 answers
asked by
Amanda
4,715 views
A mass m = 9.0 kg is attached to the lower end of a massless string of length L = 83.0 cm. The upper end of the string is held
4 answers
asked by
sam
1,073 views
• If you use a cart with half the mass, you reach _______final speed.
• If you use half the force, you reach ______ final
3 answers
asked by
Ted
1,577 views
A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V.
What is the equivalent resistance
5 answers
asked by
Leslie
1,897 views
20 kg , 30 cm diameter disk is spinning at 300 rpm. How much friction force must be applied to rim to bring the disk to a halt
6 answers
asked by
Justin
7,366 views
You are trying to overhear a juicy conversation, but from your distance of 15.0m, it sounds like only an average whisper of 25.0
4 answers
asked by
Veronica
3,699 views
Two vectors with magnitudes of 6 meters and 8 meters cannot have a resultant of:
48 meters 14 meters 10 meters 2 meters Please
4 answers
asked by
Hannah
2,086 views
Sorry to double pos, I just really need help whit this.
You push an air-hockey puck along a surface with negligible friction
6 answers
asked by
Katja
1,179 views
The flow rate of a liquid through a 2.0cm radius pipe is 0.0080 m^3/s. the average fluid in the pipe is?
i know that Av=volume
6 answers
asked by
BrOwN GuRL
5,055 views
The density of a certain material is such that it weighs 4 kilograms per cubic foot of volume. Express this density in ounces
5 answers
asked by
laine
2,726 views
A 0.500 kg object is thrown vertically upward with an average applied force of 8.20 N by a student. The force is applied through
4 answers
asked by
Jeff
2,332 views
A 17.0 kg crate is pulled a distance of 20.0 m requiring that 1210 Joules of work be done. If the job is done by attaching a
4 answers
asked by
Liam
3,104 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.
7 answers
asked by
joy
2,348 views
An Olympic long jumper leaves the ground at an angle of 23 degrees and travels through the air for a horizontal distance of 8.7
4 answers
asked by
penkey
5,878 views
a simple pendulum has a period of 4.50secs,when the length is shortened by 1.2m the period is 2.50secs. calculate the original
4 answers
asked by
pauline
1,450 views
A metal block of density 900kg/m3 weighs 60N in air . Find its weight when immersed in paraffin wax of density 800kg/m3
10 answers
asked by
Hidf
5,407 views
An object is dropped from a height H and reaches the ground with a velocity v. The same object is thrown down from the same
4 answers
asked by
Anonymous
1,601 views
a football is thrown to a moving receiver .the football leaves the quarterback's hands 1.75m above the ground with a velocity of
4 answers
asked by
jake
2,379 views
Determine the specific heat of iron if 6.1 J of energy are needed to warm 1.50 g of iron from 20 degrees C to 29 degrees C
5 answers
asked by
Anonymous
2,189 views
Part 1
A 3.0 kg block is pushed 3.0 m at a constant velocity up a vertical wall by a constant force applied at an angle of 30.0
5 answers
asked by
ally
4,275 views
A 1000kg sports car accelerates from 0 to 25m/s in 7.5s what is the average power delivered by the engine?
i know that POWER=
5 answers
asked by
magic 8 ball
7,190 views
I already figured out the answers to some but I need help with two more.
1) A disk with an initial angular velocity ω0 = 4.5
4 answers
asked by
Michelle
5,475 views
The first resonant length of a closed air column occurs when the length is 30.0cm . What will the second and third resonant
5 answers
asked by
Melissa
2,382 views
A 0.165-kg ball, moving in the positive direction at 10 m/s, is acted on by the impulse shown in the graph below. What is the
5 answers
asked by
Lisa
2,251 views
Two vectors A. and B have magnitude A = 3.00 and B = 3.00. Their vector product is A x B= -5.00k + 2.00i. What is the angle
6 answers
asked by
Jay
4,593 views
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising
5 answers
asked by
Nikki
4,028 views
A large turntable rotates about a fixed vertical axis, making one revolution in 6.00 s. The moment of inertia of the turntable
10 answers
asked by
Sarah
3,818 views
4. Why will the leaves of a red rose be warmed more than the petals when illuminated with red light? How does this relate to
4 answers
asked by
jim
2,039 views
If you throw a ball straight up at 10 m/s and release it 2m above the ground:
a) What height will the ball reach V^2=u^2+2as
4 answers
asked by
Lisa
1,855 views
A particular photon has a wavelength of approximately 2 x 10-7m. What is the energy, in joules, associated with this photon?
A.
7 answers
asked by
Morgan
2,047 views
What is the equivalent resistance of a parallel circuit with a 5.0 kΩ resistor, a 2.5 kΩ resistor, and 10.0 kΩ resistor?
A.
5 answers
asked by
Me and I
3,620 views
An electric heater warms a large 0 degree Celsius block of ice at the rate of 200J/s . calculate the mass of the ice that melts
4 answers
asked by
Lala
1,842 views
A 25 kg child slides down a playground slide at a constant speed. The slide has a height of 3.0 m and is 7.0 m long. Using
5 answers
asked by
Lindsey
8,710 views
An object's moment of inertia is 2.5 kgm^2. Its angular velocity is increasing at the rate of 3.0 rad/s^2.
What is the torque on
4 answers
asked by
falcon306
2,366 views
A pendulum clock that works perfectly on Earth is taken to the Moon. (a)Does it run fast or slow there? (b) if the clock is
5 answers
asked by
steph
5,314 views
A block cedar has a mass of 200 kg and density of 570 what fraction of the wood will be surface of block is floating in water
4 answers
asked by
Robert
3,165 views
A billiard cue ball having velocity of 5.0 cm/s and a mass 0.17 kg approaches a stationary red billiard ball of
mass 0.16 kg. If
5 answers
asked by
Anonymous
2,749 views
A ball rolling with initial velocity of 40m/s(W) undergoes an acceleration of 5.0m/s^2(N) for a period of 6.0seconds.
(A) what is
4 answers
asked by
Alan
3,059 views
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total
4 answers
asked by
Sam
4,521 views
A 1.50 kilogram cart travels in a horizontal circle of radius 2.40 meters at a constant speed of 4.00 meters per second.
Calculat
4 answers
asked by
JRUFFE
3,939 views
The magnification of a convex mirror is +0.65X for objects 2.8 m from the mirror. What is the focal length of this mirror?
5 answers
asked by
Anonymous
2,732 views
A uniform plank measures 2m long from it's end point A to point B. If the weight of the plank is 54N and it rests on a knife
4 answers
asked by
Blessed
674 views
In each cycle of its operation, a heat engine expels 2400 J of energy and performs 1800 J of mechanical work.
(a) How much
4 answers
asked by
Theaaaa03
3,528 views
Two objects of masses m1 = 0.58 kg and m2 = 0.92 kg are placed on a horizontal frictionless surface and a compressed spring of
4 answers
asked by
sherry
3,122 views
An object is thrown downward with an initial velocity of 4 feet per second. The relationship between the distance s it travels
4 answers
asked by
Merty
2,011 views
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