How many revolutions does it make during the time
A motor spins an 2 kg block around on an 80 cm arm at 200 rpm. The blosk is supported by a steel table after the motor stops. How long does the block take to come to rest? How many revolutions does it make during this time?
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Two 2.50 cm X 2.50 cm plates that form a parallel-plate capacitor are charged to 0.706 . a. what is the potential difference across the capacitor if the spacing between the plates is 1.20mm ?
Which describes the electric potential and the electric field at a point due to a negatively charged particle?
A projectile of mass 0.831 kg is shot straight up with an initial speed of 28.9 m/s. If the projectile rises to a maximum height of only 7.27 m, determine the magnitude of the average force due to air resistance.
Initially (at time t = 0) a particle is moving vertically at 6.1 m/s and horizontally at 0 m/s. Its horizontal acceleration is 1.2 m/s2 . At what time will the particle be traveling 44 degrees with respect to the horizontal?
Assuming the train can accelerate to its fastest speed in 5[s], determine the average acceleration in [m=s2] and g's Research how many g's the human body can experience prior to passing out, and determine the speed the train would have to achieve
A particle has a velocity u = 0.59c in the labortory. The laboratory is itself moving with velocity v = 0.48c relative to an inertial frame S. What is the magnitude of the velocity (in units c) of the particle in S if u and v at right angles and v
An electron moves at a speed of 60.0 m/s directly toward a stationary electron when the two electrons are 1.00 m apart. How close to the stationary electron is the moving electron when it turns around?
You produce an image of the Sun on a screen, using a thin lens whose focal length is 23.0 cm. What is the diameter of the image? (The mean radius of the Sun is 6.96 x 108 m and its mean distance from Earth is 1.50 x 1011 m.)
A 6300-kg satellite is in a circular earth orbit that has a radius of 3.0 x 107 m. A net external force must act on the satellite to make it change to a circular orbit that has a radius of 8.3 x 106 m. What work must the net external force do?
Determine the magnitude of the electric field along the axis of the rod at a point 53.3079cm from the center of the rod. The Coulomb constant is 8.98755*10^9Nm^2/C^2. Answer in units of N/C.
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