Find the mass of a truck moving at 30m/s with 425,000 joules of energy

An elevator cab that weighs 27.8 kN moves upward. What is the tension in the cable if the cab's speed is (a) increasing at a rate of 2 1.22 / msand (b) decreasing at a rate of 2 1.22 / ms?

When the lever is pulled, 2 kg of carbon dioxide is ejected at a speed of 60 m/s. The remaining mass of the person, chair, and cylinder is 80 kg. After the ejection, how fast will the chair be moving? Select the best answer from the choices provided.

On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of temperature of water which had fallen down a waterfall on Mount Blanc.

A projectile is launched with an initial velocity of 80 m/s at an angle of 30o above the horizontal. neglecting air resistance, what is horizontal component of the projectile's acceleration?

What is the kinetic energy of a 7.26kg bowling ball Thai is rolling at a speed of 2m/s

The flywheel of a steam engine runs with a constant angular velocity of 150 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.2 h.

Two particles, one with charge - 3.77 μC - 3.77 μC and one with charge 4.39 μC, 4.39 μC, are 4.34 cm 4.34 cm apart. What is the magnitude of the force that one particle exerts on the other?

What is the electrostatic constant?

Solve problem. Be sure to show your work and give a final answer with units rounded to the correct number of significant figures. 1) A wagon with a weight of 136 N is moved 19 m from its original location.

If the truck has a mass of 2000kg, what is its momentum v=35m/s