A compact car, mass 825 kg, moving south at 15 m/s, is struck by a full-sized car, mass 1588 kg, moving east at 12 m/s. The two cars stick together, and momentum is conserved in the collision. A.Find...

A compact car, mass 825 kg, moving south at 15 m/s, is struck by a full-sized car, mass 1588 kg, moving east at 12 m/s. The two cars stick together, and momentum is conserved in the collision. A.Find...

a brick weighing 25.9 N being released from rest on a 1.00 m frictionless plane, inclined at an angle of 30.0°. The brick slides down the incline and strikes a second brick weighing 35.2 N. A...

Please help me in this question i dint understand about the dot product in A.divergent gradient.

I can't understand it :(

Part a is as follows: A long cylindrical insulator has a uniform charge density of 1.89 μC/m3 and a radius of 5 cm. What is the electric field inside the insulator at a distance of 4 cm?...

What is the magnetic field in air 0.05 m away from a long straight wire carrying current of 15A? An air-core solenoid with 2000 loops is 0.60 m long and has a...

when do I use the absolute value brackets on the point charge? E = k (q)/r^2 vs E = k |q|/r^2 ?

An 0.050 m long wire carrying current of 30 A is placed in a uniform magnetic field, B = 0.80 T, such that the wire is oriented so it's length runs perpendicular to the field. Find the magnitude...

Two objects slide over a frictionless horizontal surface. The object A with a mass of 5000g is moves at a speed of 4.5m/s toward the object B (mB= 2500g) which is initially at rest. After the collision,...

An electric motor rotating a workshop grinding wheel at a rate of 212 rev/min is switched off. Assume constant angular deceleration of magnitude 2.94 rad/s 2 . Through how many revolutions does the...

A 1.5 tonne car travelling at 100km/h suddenly brakes. The brakes provide an overall force of 50 times the normal reaction. Calculate the acceleration of the car.

It ask you how many seconds are there in 1 year

The sodium lamp used in a physics laboratory gives out light uniformly. Suppose that the lamp uses 40 W. Calculate the magnitude of electric field?

The figure shows a thin rod of length L and charge Q. (Figure 1) Part A Find an expression for the electric potential a distance x away from the center of the rod on the axis of the rod...

Two charges q1 = −3.20 nC and q2 = +8.15 nC are at a distance of 1.28 µm from each other. q1 is fixed at its location while q2 is released from rest. (a) What is the kinetic energy of...

A) A proton is fired from far away toward the nucleus of a mercury atom. Mercury is element number 80, and the diameter of the nucleus is 14.0 fm. If the proton is fired at a speed...

This is everything that is provided in the question aside from a few word changes due to the academic honesty policy and the character limit. To clarify the problem, you are 75m high because you are...

A dolphin hears a 280 kHz sound with a wavelength of 0.51 cm. What is the wave's speed

1.If the rock were thrown from a cliff of height H' = 2H, the rock would land at a distance D' from the base of the cliff. Compare D and D'. D' = sqrt(2)D D' = 2D D' = 4D 2...

A rocket is standing by to launch. While sitting on the launching pad the rocket has zero velocity and thus zero initial momentum (p1=0). When the rocket takes off, a bystander proclaims that the...

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