Learn more about our help with Assignments: MechanicsRelativity
Search & Filtering
Mechanics | Relativity
An alpha particle moves with velocity of 2.0 × 108 ms−1 in the positive x-axis direction. At a particular instant, it is located at the point x = 4 cm on the x-axis.
Mechanics | Relativity
Calculate the work done by an applied force of 15 N [35° S of W] on an object that has moved 7.5 m [N 37° W].
Mechanics | Relativity
A 40 kg box is being moved by a man and a woman over a rough horizontal surface (u = 0.4). The man pulls up
on a box with a rope with a force of 500 N [40 º above the horizontal] and the woman pushes the box with a
force of 150 N directly horizontally (same direction as the man). The box moves 30 m.
a. Calculate the work done by each force acting on the box.
b. What is the change in energy for the object?
on a box with a rope with a force of 500 N [40 º above the horizontal] and the woman pushes the box with a
force of 150 N directly horizontally (same direction as the man). The box moves 30 m.
a. Calculate the work done by each force acting on the box.
b. What is the change in energy for the object?
Mechanics | Relativity
2.50 · 104 moving at a speed of 4.00 m / skg wheel railwere moving in the same direction together at an initial speed of 2.00 m / s, each of which was 2.50 · 104kgcollided with a series of three wheelchairs interlocking with the massThe four-wheeler began to move in the same direction. A) Post-conflict 4What is the speed of the wheelchair? B) How much mechanical energy was lost in the collision?is it
Mechanics | Relativity
Connect two bodies of mass m1> m2 with a weightless wire placed on the crossbar (block). The crossbar relative to the axis of rotationю The moment of inertia is I. the radius of the bar R. The wire does not shrink or stretch, eitherdoes not slide over the crossbar. The crossbar rotates without friction. Two bodies first2h away from each other, calm down and start moving. A) The law of conservation of energyю Find the velocities of the bodies when the two bodies collide using B) At the momentю Find the angular velocity of the crossbar.
Mechanics | Relativity
There is a close "Big Ben" in London Fasting 60.0 kg, the long needle is 4.50 m long and weighs 100.0 kg. It has a rotating axis The kinetic love of love can go into circulation for an impossible two years. The left face is scaly Consider a long narrow rod with a distributed mass.
Mechanics | Relativity
A ball of mass 50g is hit due south with a speed of 70 ms-1 at latitude 60 ºN.
Calculate the magnitude and direction of the coriolis force on the ball.
Calculate the magnitude and direction of the coriolis force on the ball.
Mechanics | Relativity
In 1935 nikola tesla claime "He has measured cosmic ray velocities from Antarus ... which he found to be fifty times greater than the speed of light..."
Is this true we can fined a particule move faster than speed of light, and why did Tesla disavowed relativity strongly?
Is this true we can fined a particule move faster than speed of light, and why did Tesla disavowed relativity strongly?
Mechanics | Relativity
what angle does the velocity vector make with the + x axis
Mechanics | Relativity
Assignment 3 (Work, Energy and
Momentum) – Due Wednesday 20 May 2020
Question 1 (9 marks):
A block of mass 2.5 kg is pushed 2.2 m along a frictionless horizontal table by a
constant 16 N force directed 25° downward to the horizontal. Determine the work
done on the block by:
a) The applied force (3)
b) The normal force exerted by the table, and (2)
c) The gravitational force (2)
d) Determine the total work done (2)
25°
2.5 kg
Momentum) – Due Wednesday 20 May 2020
Question 1 (9 marks):
A block of mass 2.5 kg is pushed 2.2 m along a frictionless horizontal table by a
constant 16 N force directed 25° downward to the horizontal. Determine the work
done on the block by:
a) The applied force (3)
b) The normal force exerted by the table, and (2)
c) The gravitational force (2)
d) Determine the total work done (2)
25°
2.5 kg
