A 10 kg mass is accelerated horizontally for 5 s using a 1 hp motor. What...
QUESTION 1 A car of mass 500 kg is accelerated from an initial velocity of 10 m/s. Its final velocity when the total work done by the car 1400 J in m/s is O 15.4 12.1 20.2 10.3
An alpha particle has a mass of 6.6 × 10−27 kg and is accelerated by a voltage of 1.09 kV. The charge on a proton is 1.60218×10−19 C. If a uniform magnetic field of 0.066 T is maintained on the alpha particle and perpendicular to its velocity, what will be particle’s radius of curvature? Answer in units of m.
An alpha particle (mass = 6.64⨯10-27 kg, charge = +2e) is accelerated by a potential drop V = -40 kV. What is its velocity upon emerging from the accelerating region?
A baseball of mass 0.35 kg, moving horizontally with a momentum of 5 kg m/s, is struck head-on by a baseball bat with an impulse of 9 Ns. What is the speed of the ball after it is struck?
A 10 HP motor costs $1000 today. What is your cost estimate for a 20 HP motor today?
Question 10 The 400-kg mine car is hoisted up the incline using the cable and motor M. For a short time, the force in the cable is (F determine its velocity when t- 2s - 2m/s 17 15 2.0 m/s 4.6 m/s The answer is not given 876 m/s 14.1 m/s Question 10 o Question 10 1.4 points Sa The 400-kg mine car is hoisted up the incline using the cable and motor M determine its velocity when t For...
A 76.0 kg mass of is slid up a Q = 26.0° incline by a motor driven cable that runs parallel to the incline. It moves at a constant 1.5 m/s speed for a a distance of 55.0 m up the incline. The coefficient of kinetic friction between the mass and the incline is uk = .32. (a) Calculate the total work done by the motor to move the mass in kilojoules. X kj (b) Calculate the average power produced...
5. A bullet of mass m-0.02 kg was horizontally shot into a wood block of mass mo 8.98 kg, which is attached at one end of a spring with a spring constant k = 100 N/m, as shown in right Figure. After the bullet was embedded into the wood block, the spring was compressed 10 cm. If the coefficient of kinetic friction is 0.2 between the wood block and the surface, find the initial velocity of the bullet. (10 points)
Ball A, which has mass 23 kg, is moving horizontally left to right at +7.8 m/s when it overtakes the 67 kg ball B, which is moving left to right at +4.7 m/s, and they collide elastically. (a) What is ball A's velocity after the collision? (b) What is ball B's velocity?
A proton of mass m = 1.67 x 10-27 kg and charge q = 1.60 x 10-19 C is accelerated from rest through a potential difference of 4000 V. What final velocity does it achieve?
A proton of mass m = 1.67 x 10-27 kg and charge q = 1.60 x 10-19 C is accelerated from rest through a potential difference of 4000 V. What final velocity does it achieve?