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A face appears in a convex mirror; face is 75% its normal size and appears to be 24cm behind the mirror.
a. How far was the face standing from the mirror? Is the image real ir virtual?
b. What is the radius of curvature mirror?
c. Make a sketch of the optical system, draw at least two lights rays to show how the image is formed?
A particle's trajectory is described by x=(12t3?2t2)m and y =(12t2?2t)m, What is the particle's direction of motion, measured as an angle from the x-axis, at t=5.0s
With what tension should a rope with length 3.00m and mass 0.135kg be stretched for transverse waves of frequency 43.0Hz to have a wavelength of 0.720m. What torque does friction exert even as this wheel is slowing down.
A plano convex lens of focal length 16 cm is fixed on the side of the box with convex surface outside an object is placed at 26 cm from the lens find the position of the image while (1) the box is empty (2) field with water.
With what minimum speed must you toss a 160 g ball straight up to hit the 10 m high roof of the gymnasium if you release the ball 1.60m above the ground? Solve this problem using energy.
She wants glasses that will let her see objects at a distance of only 25 cm from her eyes. Examine the focal length of the glasses needed if the glasses are 2 cm and 3 cm from her eyes.
Ignoring the container and the equilibrium vapor pressure of the liquid at 51.5 °C, find out the ratio of the mass of steam to the mass of ice. The specific heat capacity of steam is 2020 J/(kg C°).
A parallel-plate capacitor is formed from two 4 electrodes spaced 1.20 mm apart. The electric field strength inside the capacitor is 1.29x 10^6. What is the charge (in nC) on each electrode.
A block of mass m =2.00kg is released from rest at h=0.300 m from the surface of a table at the top of a theta=50.0 degree incline as shown below. How far from the table will the block hit the floor
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, What is the true distance between the points
Find the difference of the initial and the final masses for the decay 137N?126C+p. The atomic masses of 137N, 126C,
A.) What is the total negative charge, in coulombs, of all the electrons in a small 1.00 sphere of carbon? One mole of is 12.0 , and each atom contains 6.00and 6.00 electrons.
A protostar has a temperature of 3000 K,radius of 2*10^8 km at stage 4. At stage 6, Calculate the star's change in absolute magnitude as it evolves from stage 4 to stage 6
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