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Physics for Scientists and Engineers
- A space probe of mass 5.00 x 104 kg is traveling at 1.10 x 104 m/s through deep space. No forces act on the probe except that generated by its own engine. No forces act on the probe except that generated by its own engine. The engine exerts a constant external force of 4.00 x 105 N, directed parallel to the displacement, which is 2.50 x 106 m. Determine the final velocity of the probe.arrow_forwardThe block of mass m = 2 kg is released from the rest on the incline. If 0 = 15°, what is the velocity of the block 2 seconds after release? Ms = 0.3, k = 0.20 1.288 m/s 3.084 m/s 2.511 m/s m 0 Өarrow_forwardTwo constant forces act on an object of mass m = 4.30 kg object moving in the xy plane as shown in the figure below. Force F, is 26.5 N at 35.0°, and force F, is 48.0 N at 150°. At time t = 0, the object is at the origin and has velocity (3.50î + 2.15j) m/s. 150° 35.0° (a) Express the two forces in unit-vector notation. F, - N (b) Find the total force exerted on the object. N (c) Find the object's acceleration. m/s2 Now, consider the instant t = 3.00 s. (d) Find the object's velocity. m/s (e) Find its position. (f) Find its kinetic energy from V½mv2. kJ (g) Find its kinetic energy from 2mv,2 + EF · AF. kJarrow_forward
- A particle of mass 1.05 kg is subject to a force that is always pointed towards the East but whose magnitude changes linearly with time t. The magnitude of the force is given as F = 4t, and has units of newtons. Let the x-axis point towards the East. Determine the change in x-coordinate in meters of the particle Δx between t = 0 and t = 2.4 if the initial velocity is 17.5 m/s, and pointed in the same direction as the force.arrow_forwardThe H2S molecule contains two hydrogen atoms and one sulfur atom. The position vectors of the hydrogen atoms and the sulfur atom are rHI=(0.70, 1.01, 0.00), rí2=(0.70, -1.01, 0.00), rs=(0.00, 0.00, 0.00), respectively. Providing that the mass of hydrogen atom is 1 amu and the mass of sulfur atom is 32 amu. Find a. The angle between the two H-S bonds. b. The position vector of the centre of mass of the H2S molecule. c. The position vectors of the hydrogen atoms and the sulfur atom with respect to the centre of the mass of the molecule (pointing from the centre of the mass of the molecule to the hydrogen atoms and the sulfur atom).arrow_forwardTwo forces, 1 = (−6.55î + 4.75ĵ) N and 2 = (−4.05î + 6.40ĵ) N, act on a particle of mass 2.20 kg that is initially at rest at coordinates (+2.30 m, +4.10 m). In what direction is the particle moving at t = 10.1 s? What displacement does the particle undergo during the first 10.1 s? What are the coordinates of the particle at t = 10.1 s?arrow_forward
- An airliner of mass 1.70 * 105 kg lands at a speed of 75.0 m>s. As it travels along the runway, the combined effects of air resistance, friction from the tires, and reverse thrust from the engines produce a constant force of 2.90 * 105 N opposite to the airliner’s motion. What distance along the runway does the airliner travel before coming to a halt?arrow_forwardA mass m₁ = 4.0 kg is suspended over a massless frictionless pulley and is attached with a. massless rope to a mass on a frictionless horizontal table, mt = 2.0 kg. This mass is itself attached to another suspended mass m2 = 6.0 kg again with a massless rope over a massless and frictionless pulley. (a) Find the velocity of each mass when m2 falls a distance 20. cm (the masses start atarrow_forwardA drone is being directed across a frictionless ice covered lake. The mass of the drone is 1.50 kg, and its velocity is 3.00i ^ m/s . After 10.0 s, the velocity is 9.00i ^ + 4.00j ^ m/s . If a constant force in the horizontal direction is causing this change in motion, find (a) the components of the force and (b) the magnitude of the force.arrow_forward
- 1 2 B → ✰ S 1 4 https://mapleton.instructure.com/courses/16703/assignments/300550 1 point A 1kg flower is pushed by a force of 1N. How fast (in m/s2)does it accelerate? Type your answer... A Submit For these questions, assume that the acceleration due to gravity (g) on Earth is 10 m/s². Also assume that there is no friction or air resistance acting on any of these systems. E 1 point A 23kg statue sits on a table. What is the statue's weight in Newtons? Type your answer... 2 1 point A speeding car is pulled over by a police cruiser. If the car started at 60 m/s and stopped in 20 seconds. If the car has a mass of 1,800Kg, how much force (in Newtons) was exerted by the car's breaks? Type your answer... 3 1 point A moose pushes a 10kg rock, accelerating it from rest to 10m/s in 1 second (This is an acceleration of 10m/s2). What was the applied force in Newtons? Type your answer... Return 4arrow_forwardI need the answer as soon as possiblearrow_forwardThe 0.8-kg particle slides across a frictionless horizontal plane. The force P applied to the particle always acts in the x-direction and its magnitude varies with time as shown (Fig. 2) in the P-t diagram. If the velocity of the particle at t= 0 is 3 mps, in the direction shown, determine the speed when t = 5 sec.arrow_forward
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