What type of normal human cell contains 22 autosomes and a X chromosomes?

Cart A (mass = 0.75 kg0.75\, \text{kg}) moves at 2.0 m/s2.0\, \text{m/s} toward Cart B (mass = 1.25 kg1.25\, \text{kg}), which is at rest. The carts collide and stick together. (a) What is the total momentum before the collision?(b) What is the velocity of the combined mass after the collision?(c) How much kinetic energy is lost in the collision?(d) What type of collision is this, and why?

Two carts collide on a horizontal, frictionless track. Cart A has mass mm and is moving at velocity vv. Cart B is initially at rest and has the same mass. (a) Explain why momentum is conserved during the collision.(b) Describe how you could experimentally determine whether the collision is elastic or inelastic.(c) If the carts stick together after the collision, explain how the total energy of the system changes.

A student places a block on a frictionless incline and releases it from rest. The angle of the incline is increased, and the acceleration of the block is measured. (a) Draw a free-body diagram for the block on the incline.(b) Explain how the angle of the incline affects the acceleration of the block.(c) Describe how you could experimentally determine the gravitational acceleration gg using this setup

A 10.0 kg10.0\, \text{kg} box is pulled across a horizontal surface with a force of 50.0 N50.0\, \text{N} applied at an angle of 30∘30^\circ above the horizontal. The coefficient of kinetic friction is 0.250.25. (a) Draw a free-body diagram for the box.(b) Calculate the normal force acting on the box.(c) Find the net force acting on the box.(d) Determine the acceleration of the box.

A square loop of wire is pulled at constant speed out of a uniform magnetic field that points into the page. (a) Describe the direction of the induced current in the loop.(b) What causes this current to be induced?(c) If the speed of the loop is increased, how does that affect the magnitude of the induced current?

A parallel-plate capacitor is connected to a battery and becomes fully charged. The battery is then disconnected. (a) Explain what happens to the stored energy if the plates are moved farther apart.(b) What happens to the voltage across the plates?(c) Would your answers change if the battery remained connected? Explain why or why not.

A 6.0 μF6.0\,\mu\text{F} capacitor is connected to a 9.0 V9.0\,\text{V} battery.What is the charge stored on the capacitor?

A +2.0 μC+2.0\,\mu\text{C} charge is placed in a potential of 120 V120\,\text{V}.What is its electric potential energy in joules?

Two point charges are located on the x-axis: q1=+3.0 μCq_1 = +3.0\,\mu\text{C} at x=0 mx = 0 \,\text{m} q2=−2.0 μCq_2 = -2.0\,\mu\text{C} at x=0.40 mx = 0.40\,\text{m} (a) Calculate the electric potential at point PP located at x=0.20 mx = 0.20\,\text{m}.(b) A +1.0 μC+1.0\,\mu\text{C} test charge is placed at point PP. What is its potential energy?(c) How much work would be required to bring the test charge from infinity to point PP?