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An ashtray slides across a table with a speed of 0.6 m/s and falls off the edge. If it takes 0.4 s to reach the floor, how far from the edge of the table does the ashtray land?
A concave mirror (R = 64 cm) is used to project a transparent slide onto a wall. The slide is located at a distance of 40.0 cm from the mirror, How far from the wall should the mirror be located
A child is playing by jumping on a bathroom scale. The mass of the child is 31 kg and when he stands on a bathroom scale, the spring inside the scale compresses 0.46 mm. what is the maximum height the child can jump on the scale
a hair dryer operates at 1800 watts along with a 240 watt power resistor connected in series. Utilizing a 120 volt source, determine the individual resistance Ri and the voltage drop Vi across each compenent in the circuit
A person exerts a horizontal force of F = 190 N in the test apparatus. (h of arm = 0.34 m. And h of flexor muscle= .054 m) Find the horizontal force M that his flexor muscle exerts on his fore arm.
A helicopter has two blades, each of which has a mass of 270 kg and can be approximated as a thin rod of length 6.7 m. The blades are rotating at an angular speed of 54 rad/s. (a) What is the total moment of inertia of the two blades about the axis o..
A 650-N physics student stands on a metric bathroom scale inside an elevator. The elevator (including the student) has a total mass of 875 kg. What is the tension on the elevator cable in both cases
A 2000 kg car starts at rest at the bottom of a hill. The road is flat at an angle of 5.22% with the horizontal. Accelerating at a constant rate, Find the power the car needs to do this
a student measures the diameter of a small cylindrical object and gets the following readings 4.32, 4.35, 4.31, 4.36, 4.37, and 4.34cm. What is the average diameter of these readings
A square coil of wire with 17 turns is in a magnetic field of 0.11 T. Find the area of one turn if the field is perpendicular to the plane of the coil
What must the charge (sign and magnitude) of a particle of mass 1.42g be for it to remain stationary when placed in a downward-directed electric field of magnitude 610N/C ? Use 9.81m/s^2 for the magnitude
Suppose that blood is pumped from the left side of a person's heart at a rate of 105.0 cm3/s, What is the pumping rate into the right side of the heart
A loudspeaker is generating sound in a room. At a certain point, the sound waves coming directly from the speaker (without reflecting from the walls) create an intensity level of 75.1 dB. What is the total intensity level
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