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Problem: Suppose that a spring scale is used to pull the block horizontally along the surface at a constant speed.
Part A: If the scale reads 5.8 N, what is the magnitude of the frictional force?
I need help to find the magnitude of the frictional force and explain your reasoning.
Thermal expansion increases the length of a clock's pendulum by a fractional increase of 4.9×10-5. Under these conditions, how much error in timekeeping accumulates over 1 day
What was an initial speed of the ball
a lamp which is 9.0 cm tall is in front of a concave mirror which has a focal length of 53.0 cm.a how tall is the lamps
Objects A and B are both positively charged. Both have a mass of 138 g, but A has twice the charge of B. How large is the electric force (in N) on A
An atom of U238 spontaneously decays into two components. One is a small fragment that is ejected with a speed of 1.50x107 m/s, what are the masses of the fission products
Two identical pellet guns are fired simultaneously from the edge of a cliff. These guns impart an initial speed of 24.1 m/s to each pellet. Gun A is fired straight upward, with the pellet going up and then falling back down, eventually hitting the..
A 1200 kg car pulls a 480 kg trailer. The car exerts a horizontal force of 3540 N against the ground in order to accelerate. What force does the car exert on the trailer
A pion traveling at speed v decays into a muon and neutrino. at what angle does the muon come off
Four identical particles, each with mass m and charge Q, are initially at the four corners of a square with side a. What is their speed when they are a large distance apart
If a metal wire carries a current of 23.0 mA, how long does it take for 12.0×1020 electrons to pass a given cross-sectional area anywhere along the wire? The magnitude of the charge on an electron is 1.6 × 10-19 C.
On vacation your 1200 kilogram car pulls a 600 kilogram trailer away from a stoplight with an acceleration of 1.20 m/s2. Find the net force exerted by the car in the trailer
Your friend recently purchased a musical instrument that generates sound waves using several strings. Determine the length of the strings of this instrument
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