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Under the influence of its drive force, a snowmobile is moving at a constant velocity along a horizontal patch of snow. find the distance in which the snowmobile coasts to a halt
Starting from rest, a 2.2x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, What is the flea's speed when it leaves the ground
Two thin coils of radius 3 cm are 20 cm apart and concentric with a common axis, What is the vector magnetic field on the axis, halfway between the two loops
An interstellar spaceship is leaving Earth at a speed of %u03B2 = 0.548 for a deep space expedition. What is the geometric mean of the down-shifted and the up-shifted frequency
Two thin coils of radius 3 cm are 20 cm apart and concentric with a common axis, What is the magnitude of the magnetic dipole moment of one of the coils of wire
The surfer in the photo is catching a wave. Suppose she starts at the top of the wave with a speed of 1.50 m/s, how much work is done by the (non-conservative) force of the wave
A puck is sliding without friction on the ice at a speed of 2.48 m/s. Find the speed and direction of the second puck after the collision
A man with mass m1 = 54 kg stands at the left end of a uniform boat with mass m2 = 174 kg and a length L = 2.6 m. After the man walks to the right edge of the boat, what is the new location the center
Calculate the velocity of a satellite moving in a stable circular orbit about the Earth at a height of 3700 km
Calculate the force of gravity on a spacecraft 32000 km (5 earth radii) above the Earth's surface if its mass is 1800 kg. N (toward the earth)
A child sitting 1.06 m from the center of a merry-go-round moves with a speed of 1.35 m/s. Calculate the centripetal acceleration of the child
A force of 21.0 N is required to start a 2.8 kg box moving across a horizontal concrete floor. What is the coefficient of static friction between the box and the floor
A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 3.5 kg*m^2. Calculate the initial and final kinetic energy of the syste
Describe fusion. What role does a tokamak play in a fusion reactor? What are the advantages of nuclear power
A semicircle of radius a is charged.positive charge +Q is distributed uniformaly around the left half of the semicircle, what are the magnitude and the direction of the electric field
An object is five focal lengths from a concave mirror. How do the object and image heights compare
A hollow, spherical shell with mass 2.40 kg rolls without slipping down a slope angled at 39.0 degrees. Find the friction force
Assuming that all photons reaching the solar cell give their energy to a charge carrier, what is the minimum power of a flash of light of wavelength 540nm that can be detected
A platinum resistance thermometer has a resistance of 100ohm at 0 deg and the value of alpha is 0.00385. Calculate the temperature
A 1.50e-14 kg oil drop accelerates downwards at a rate of 1.80 m/s^2 when placed between two horizontal plates that are 9.40 cm apart. Determine the magnitude of the charge on the oil drop
A scientist changes the frequency of an incident X-ray to 4.50e19 Hz and measures the deflected X-ray frequency of 4.32e19 Hz. What was the angle of deflection
Estimate the average speed of the Apollo spacecraft in meters per second, given that the craft took five days to reach the Moon from Earth
Nichrome wire of cross-sectional radius 0.788 mm is to be used in winding a heating coil. find the length of wire you must use to wind the coil
A spring with a spring constant of 224.8 N/m is compressed by 0.229 m. What is the speed of the ball bearing right after it loses contact with the spring
A high-voltage transmission line with a resistance of 0.32 /km carries a current of 1000 A. What is the power loss due to resistance in the line