Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
The semicircular disk having a mass of 10 kg is rotating at ? = 4 rad/s at the instant T = 60° .
How long will it take the spacecraft to catch up with the projectile, and how far will it have traveled by then?
Sam heaves a 16-lb shot straight upward, giving it a constant upward acceleration from rest of 45.0 m/s2 over a distance of 64.0 cm.
Explain why free-fall acceleration can be regarded as a constant for objects falling within a few hundred meters of Earth's surface.
Objects A and B are both positively charged. Both have a mass of 500 g, but A has twice the charge of B. When A and B are placed 50.0 cm apart.
Suppose that the potential seen by a neutron in a nucleus can be represented (in one dimension) by a square well of width 10^12 cm with very walls
If the human cannonball spends 0.812 s in the cannon, determine the average net force exerted on him in the barrel of the cannon.
The incline is 30 degrees with a kinetic friction coefficient of 0.20. Initially the system is not moving.
The fire truck us moving forward at a speed of 35 MPH and is decelerating at a rate of 10ft/sec.^2. Simultaneously, the ladder is being raised and extended.
The particle completes 40 revolutions every minute. Show that the angular speed of the particle is 4.19 radians per second, to three significant figures.
Plot the trajectory given by the angle found in a) from t = 0 until the projectile hits the incline with a thick red line.
What must be the airplane acceleration if it is in to take off from a runway 50cm long? Expression for acceleration.
A rocket-driven car of total mass M loses mass at a constant rate per unit of time at a constant ejection speed V relative to the car.
How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
What is the maximum horizontal force, F that can be applied to the slab so that the slab and the block will move together without relative slippage?
Two blocks of mass m = 11.0 kg each are fastened to the ceiling of an elevator. Find the tension in the top rope.
An atom of mass M is initially at rest, in its ground state. A moving (nonrelativistic) electron of mass me collides with the atom.
When the masses are unequal, what is the correct definition of the position of the composite (2+3) that will make m_1a_1 = - m_2a_2 hold true?
What would be the period of her oscillation if we assume the bungee cord acts like a perfect spring?
A train travels due south at 60 m/s. It reverses its direction and travels due north at 60 m/s. What is the change in velocity of the train?
At 1.00 x 103 rpm (and with a 8.31-cm rotor) what is the net force on a red blood cell whose mass is 9.12 x 10-14 kg?
An object (mass 10 kg) slides upward on a slippery vertical wall. A force F of 60 N acts at an angle of 60°.
A 30-turn circular coil of length 6.0 produces a magnetic field of magnitude 2.0 mT at its center. Find the current in the loop.
A train running along a straight track at 30 m/s is slowed uniformly to a stop in 44 s. Find the acceleration and the stopping distance.
Solve these equations simultaneously to arrive at the following equation: (m1-m2)g=(m1+m2+( I/R^2))a.