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An astronaut on the moon places a package on a scale and findsits weigh to be 31 N.a) What would the weight of the package be on the earth?__________Nb) What is the mass of the package on the moon?________kgc) What is the package's mass on the earth?_________kg
What is the net force of a 5.0 N force and an 8.0 N forceacting on an object for each of the following conditions?a) The forces act in the opposite directions._________Nb) The forces act in the same directions.__________N
A uniform electric field of magnitude 230 V/m is directed in the positive xdirection. A +15.0 µC charge moves from the origin to thepoint (x, y) = (20.0 cm, 50.0 cm). What is the change in the potential energyof the charge field system?
The dipole moment of the water molecule is 6.1 * 10^-30 C * m. In an electric field, a molecule with a dipole moment will tend to settle into an equilibrium orientation such that the dipole moment is parallel to the electric field
A transformer has 683 turns in its primary winding and 109 in its secondary winding. Assuming it has 100 percent efficiency, By what factor does it change the current
An alkaline D-cell has a voltage of 1.4V and is rated as 11,000mAh. Find the total charge available from the battery
A 2.00 m brass rod with a 1.00 mm diameter is used as a spring by stretching the rod. If the tensile modulus of brass is 9.10 1010 N/m2, then the spring constant of the rod is
A ball of mass M and radius R starts from rest at a height of h = 1.73 m and rolls down a ? = 25.8° slope, What is the linear speed of the ball when it leaves the incline
A 4.4 cm radius ball rolls down an inclined plane from rest at the top. The angular acceleration of the rolling ball about its center is 185 rad/s^2, How long is the plane
a hydrogen atom is in a state with energy -0.850 .in the bohr model what is the angular momentum of the electron in the
q1. a rocket moves with a velocity of 0.818c to the right with respect to a stationary observer a. an observer b moving
An airplane is flying with a velocity of 95 at an angle of 19 above the horizontal. When the plane is a distance 111 m directly above a dog that is standing on level ground, suitcase drops out of luggage compartment.
A 53.6-kg skateboarder starts out with a speed of 2.49 m/s. He does 114 J of work on himself by pushing with his feet against the ground. How much has the vertical height of the skater changed
A 65.0 kg object slides down a 30o angle slope from rest at a height of 15.0 m. The coefficient of kinetic friction between the object and the slope surface is 0.15. What is the object's speed at the bottom of the slope
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