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Classical mechanics
Page 10
Questions (773)
Two firecrackers explode at the same place in
a rest frame with a time separation of 11 s in that frame. Find the time between
2 answers
asked by
Anonymous
836 views
A CD has a mass of 17.4 g and a radius of 6.01 cm. When inserted into a player, the CD starts from rest and accelerates to an
2 answers
asked by
Will
1,159 views
Two protons are moving directly toward one another. When they are very far apart, their initial speeds are 1.5e6 m/s. What is
2 answers
asked by
maddie
1,052 views
Find the angular velocity of a clock's second hand and the linear speed and linear acceleration of a point on the second hand
1 answer
asked by
Alex
790 views
a green bead of mass 70 g slides along a straight wire. The length of the wire from point "A" to point "B" is 0.700 m, and point
1 answer
asked by
Hector
800 views
A softball pitcher throws a ball by swinging his arm with an angular speed of 9.81 rad/s. If the pitchers arm is 0.640 m long,
2 answers
asked by
Anonymous
817 views
Two people, one of mass 70 and the other of mass 65 , sit in a rowboat of mass 78 . With the boat initially at rest, the two
2 answers
asked by
anonymous
806 views
In the latest Indian Jones film, Indy is supposed to throw a grenade from his car, which is going 93.0 km/h, to his enemy's car,
1 answer
asked by
Anonymous
474 views
an electron is accelerated from rest through a potential difference V. If the electron reaches a speed of 9.11*x10^6 m/s, what
1 answer
asked by
Rick
781 views
If an object is thrown vertically upward with an initial velocity of v, from an original position of s, the height h at any time
2 answers
asked by
Billy
824 views
Particle A and particle B are held together with a compressed spring between them. When they are released, the spring pushes
2 answers
asked by
tom-H
777 views
A model airplane of mass 0.9 kg is attached
to a horizontal string and flies in a horizontal circle of radius 5.2 m, making 1.2
2 answers
asked by
Aaron
774 views
I've tried a bunch, have no idea. Got the first part, no idea on the second one.
A basketball, of mass m = 0.45 kg is dropped,
2 answers
asked by
John
775 views
A helicopter of mass M is carrying a box of mass m at the end of a rope and is moving horizontally with constant acceleration
2 answers
asked by
Nikita Sukhwal
755 views
A bowling ball weighing 71.2 is attached to the ceiling by a 3.50 rope. The ball is pulled to one side and released; it then
2 answers
asked by
Madeline
777 views
Two students are on a balcony 22 m above the street. One student throws a ball vertically downward at 15.5 m/s; at the same
2 answers
asked by
Mariana
763 views
A circular disk of mass 0.3 kg and radius 40 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of
1 answer
asked by
John
772 views
A block of mass m1 is on top of a block of mass m2. Block 2 is connected by an ideal rope passing through a pulley to a block of
1 answer
asked by
Rose
779 views
A descent vehicle landing on the moon has
a vertical velocity toward the surface of the moon of 35.4 m/s. At the same time, it
2 answers
asked by
Louis
768 views
really confused, A 2kg box is sliding east at 50m/s on a frictionless floor when it collides with a 4kg box sliding east at
3 answers
asked by
justin
776 views
A woman stands at the center of a platform. The woman and the platform rotate with an angular speed of 4.00 rad/s. Friction is
1 answer
asked by
CJ
764 views
laf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible
2 answers
asked by
Ann
731 views
two stars with equal mass of 4.0x10^15 kg are separated by a distance of 2 km. They are moving in circular obits around the
1 answer
asked by
Ricky
738 views
You have entered a contest in which the contestants drop a marble with mass 27.0g from the roof of a building onto a small
2 answers
asked by
Erick
708 views
estimate the rotational kinetic energy of earth, assuming it to be a solid sphere of uniform density
2 answers
asked by
devin
717 views
What happens to centripetal force when speed decreases, in the special case that the object continues moving in a circle of the
2 answers
asked by
Katelyn
726 views
One particle has a mass of 2.86 x 10-3 kg and a charge of +7.32 μC. A second particle has a mass of 6.41 x 10-3 kg and the same
1 answer
asked by
S
743 views
An 85 g arrow is fired from a bow whose string exerts an average force of 95 N on the arrow over a distance of 81 cm. What is
1 answer
asked by
Anonymous
726 views
A 3.00kg object undergoes an acceleration given by acceleration is equal to (2.00i hat + 5.00j hat). Find (a) the resultant
1 answer
asked by
Anonymous
750 views
newtons law of gravitation says that the magnitude F of the force exerted by a body of mass m on a bod of mass M is F=GmM/r^2
2 answers
asked by
cassie
724 views
a small mass is suspended from along thread so as to form a simple pendulum.the period T of the oxillation depend on the mass
2 answers
asked by
praise
717 views
A rock is dropped from a tree of height 22 m into a lake (depth 4.0 m) below. After entering the water, the rock floats gently
2 answers
asked by
julia
711 views
From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 8.50 m/s and angle
2 answers
asked by
Jen
715 views
While sliding horizontal on a frictionless surface at a speed of 30 m/s, a hockey puck of mass 0.16 kg is struck by a hockey
3 answers
asked by
Samiboo711
712 views
A small block of mass m = 225 g is released from rest at point circled A along the horizontal diameter on the inside of a
1 answer
asked by
steve
720 views
At a time t after being projected from the ground, a projectile is displaced x units horizontally and y units vertically above
2 answers
asked by
joe
681 views
A yoyo of mass 2 kg and moment of inertia 0.04 kg m consists of two solid disks of radius 0.2 m, connected by a central spindle
13 answers
asked by
juanpro
709 views
You throw a ball straight into the air from a height of 4 feet and with a speed of 8.22 m/s. The moment the ball leaves your
6 answers
asked by
Mel
716 views
In Larry Niven’s science fiction novel
Ringworld, a ring of material of radius 1.54 × 1011 m rotates about a star with a ro-
2 answers
asked by
helpplz
689 views
Use Newton's Law of Gravitation to compute the work W required to launch a 1500 kg satellite vertically to an orbit 800 km high.
2 answers
asked by
matt
694 views
Four 6.0 kg spheres are located at the corners of a square of side 0.70 m. Calculate the magnitude and direction of the
2 answers
asked by
beth
708 views
A particle with mass 6.4 is acted on by a conservative force moves along a path given by:
x=5.2*cos(2.2t) y=5.9*sin(2.2t) Find
3 answers
asked by
Chuck
713 views
The angular position of a point on the rim of a rotating wheel is given by Theta = 4.0t-3t^2+t^3, where theta is in radians and
1 answer
asked by
Scott
686 views
a golf ball with an initial angle of 38 degrees lands exactly 240 m down the range on a level course. neglecting air friction,
2 answers
asked by
Anonymous
686 views
A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f = 1.7
1 answer
asked by
Anonymous
685 views
In the Atwood machine shown in Figure 5.14a, m1 = 2.00 kg and m2 = 8.00 kg. The masses of the pulley and string are negligible
1 answer
asked by
Janice
699 views
0.4kg bullet is fired from a gun at a speed of 100 m/s . If the bullet rises straight up into the air, what is the maximum
2 answers
asked by
JOYE
674 views
(Another) Physics Homework Help?
The two blocks in the figure are sliding down the incline. What is the tension in the massless
2 answers
asked by
vidya
674 views
A rod of length L=1.80m is mounted to a wheel (solid cylinder) of radius R=8.00cm. A massless rope is wound on the wheel, and
2 answers
asked by
Leila
670 views
While standing on top of a 220. m tall building, you see Iron Man flying straight down toward the ground at a speed of 30.0 m/s.
3 answers
asked by
john
664 views
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Parent Categories (4)
Dynamics
Kinematics
Mechanics
Physics