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A tarantula is sitting 4.5 m in front of the concave spherical mirror by radius of R=1.4m.
1. Construct a ray diagram to scale showing the object, image and the mirror. Decide graphically the characteristics of the image.
2. If the image is 5.0 cm tall, how high is the tarantula?
a square plate of copper with 54.0 cm sides has no net charge and is placed in a region of uniform electric field of
A 8.22 nC charge is located 1.82 m from a 4.38 nC point charge. (a) Find the magnitude of the electrostatic force that one charge exerts on the other.
An airplane is flying at 175km/hr on a headwind of 45 degrees. The wind is blowing from 300 degrees at 45 km/hr. Find the direction and magnitude of the plane's velocity
question at a certain point during the reaction the h2 0.15 n2 0.10 and nh3 0.020. has the reaction reached
a basketball player is standing on the floor 12 m from the basket. the hight of the basket is 3.05m, what is the acceleration of the basketball at the highest point in its trajectory
A 1.0 mCi source of Phosphorus called P-32, a beta emitter, is imlanted in a tumor where it is to administer 36 Gy. how long should the source remain implanted
The spaceship Enterprise 1 is moving directly away from earth at a velocity that an earth-based observer measures to be +0.62c. A sister ship, Enterprise 2, is ahead of Enterprise 1 and is also moving directly away from earth along the same line. ..
How do you measure the mass of an astronaut in orbit? (You can't just use a scale!) For the Skylab program, What is the mass of the astronaut
One mole of an ideal diatomic gas is heated from a temperature of 22 degrees C to a temperature of 95 degrees C. How much heat in joules must be supplied if the volume is kept constant during heating?
A grinding wheel is initially at rest. A constant external torque of 47.2 N· m is applied to the wheel for 18.8 s, Find the frictional torque, which is assumed to be constant
A pulley with a radius of 3.0 cm and a rotational inertia of4.5×10−3 kg ·m2 is suspended from the ceiling. A rope passes over it with a 2.0-kg block attached toone end and a 4.0-kg block attached to the other.
A generator uses a coil that has 210 turns and a 0.20-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. assume that each turn of the coil is a square (an approximation), conclude the length of wire f..
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