A dog of mass 3.5 kg is initially trotting at 2.0 m/s. She sees a bird...
A dog of mass 3.5 kg is initially trotting at 2.0 m/s. She sees a bird and chases it, increasing her speed to 6.0 m/s. She does this in a total time of 4.3 s. With what force did the dog accelerate, in N?
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A dog of mass 3.5 kg is initially trotting at 2.0 m/s. She sees
a bird...
please help Question 16 (5 points) Two masses of mass 3.5 kg and 8.0 kg are...
please help
Question 16 (5 points) Two masses of mass 3.5 kg and 8.0 kg are initially stationary, and no external forces act on these objects. if the objects are 48 cm apart, and the two masses attract each other and meet, how far does the 3.5-kg mass move, in cm, from its original position to the point where the masses meet? (Enter number only; do not include units.) Your Answer: Answer Question 17 (5 points) The power of an...
13 1 point A ball of mass 3 kg has an initial speed of 2.0 m/s....
13 1 point A ball of mass 3 kg has an initial speed of 2.0 m/s. A force is then applied which does 48 ) of work on the ball. What is the final speed of the ball? O 4.5 m/s O 5.7 m/s 5.3 m/s m/s O 6.0 m/s Previous
12) A 2.0 kg firecracker that was initially sliding along the floor at 1.0 m/s (to...
12) A 2.0 kg firecracker that was initially sliding along the floor at 1.0 m/s (to the right) explodes with an internal energy of 10,000 J. If the firecracker breaks into two pieces that move in opposite directions, with the first piece having a mass of 0.75 kg and a speed of 30 m/s (to the right), then how much energy was converted into heat during the explosion? A) 0 kJ B) 1.5 kJ C) 2.7 kJ D) 4.3 kJ...
Problem 1 A dog starts running at a constant speed v0= 6 m/s. Initially, the dog...
Problem 1 A dog starts running at a constant speed v0= 6 m/s. Initially, the dog is at a distance d= 10 m from a window. The window is located at a height h= 20 m above the ground. On top of the window there is a plant pot of mass m = 3 kg. The pot falls from the window 2 seconds after the dog starts running. a) What is the speed (inm/s2) of the pot when it reaches...
Dr. dog lifts a 1.0 kg box 1.0 m. How much work does she do if...
Dr. dog lifts a 1.0 kg box 1.0 m. How much work does she do if the box is initially at rest and has a final vertical speed of 1.0 m/s
4. A 0.090 kg puck initially moving at 2.0 m/s stops on ice after sliding 30m....
4. A 0.090 kg puck initially moving at 2.0 m/s stops on ice after sliding 30m. Find a) the net force on the puck while sliding b) the force due to friction on the puck c) the coefficient of friction between the puck and the ice 5. A force of 6.0 N is applied to a 4.0kg object which results in a constant velocity of 5.5 m/s. a) What is the force of friction? b) Calculate
A 2.0 kg mass on a smooth horizontal surface moves with 7.0 m/s speed toward a...
A 2.0 kg mass on a smooth horizontal surface moves with 7.0 m/s speed toward a spring of force constant k = 2000 N/m. What is the speed of the mass at the instant it compresses the spring by 0.15 m? k www.ro 20 kg Select one: OA. 4.9 m/s B. 6.4 m/s O C. 14 m/s CD 5.1 m/s E. 3.7 m/s
Gayle runs at a speed of 3.45 m/s and dives on a sled, initially at rest...
Gayle runs at a speed of 3.45 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 52.0 kg, the sled has a mass...
Gayle runs at a speed of 4.30 m/s and dives on a sled, initially at rest...
Gayle runs at a speed of 4.30 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 47.5 kg, the sled has a mass...
7. AS kg ball is initially at rest on a horizontal frictionless surface as shown to...
7. AS kg ball is initially at rest on a horizontal frictionless surface as shown to the right. A hard plastic cube of mass 0.5 kg slides across the surface at a speed of 26 ms and strikes the ball The figure below shows a graph of the force exerted on the ball by the cube as a function of time. Oslo Force (x10'N) 10 2.0 10.0 4.0 6.0 8.0 Time (x10's) A) Determine the total impulse given to the...
please help
Question 16 (5 points) Two masses of mass 3.5 kg and 8.0 kg are initially stationary, and no external forces act on these objects. if the objects are 48 cm apart, and the two masses attract each other and meet, how far does the 3.5-kg mass move, in cm, from its original position to the point where the masses meet? (Enter number only; do not include units.) Your Answer: Answer Question 17 (5 points) The power of an...
13 1 point A ball of mass 3 kg has an initial speed of 2.0 m/s. A force is then applied which does 48 ) of work on the ball. What is the final speed of the ball? O 4.5 m/s O 5.7 m/s 5.3 m/s m/s O 6.0 m/s Previous
12) A 2.0 kg firecracker that was initially sliding along the floor at 1.0 m/s (to the right) explodes with an internal energy of 10,000 J. If the firecracker breaks into two pieces that move in opposite directions, with the first piece having a mass of 0.75 kg and a speed of 30 m/s (to the right), then how much energy was converted into heat during the explosion? A) 0 kJ B) 1.5 kJ C) 2.7 kJ D) 4.3 kJ...
4. A 0.090 kg puck initially moving at 2.0 m/s stops on ice after sliding 30m. Find a) the net force on the puck while sliding b) the force due to friction on the puck c) the coefficient of friction between the puck and the ice 5. A force of 6.0 N is applied to a 4.0kg object which results in a constant velocity of 5.5 m/s. a) What is the force of friction? b) Calculate
A 2.0 kg mass on a smooth horizontal surface moves with 7.0 m/s speed toward a spring of force constant k = 2000 N/m. What is the speed of the mass at the instant it compresses the spring by 0.15 m? k www.ro 20 kg Select one: OA. 4.9 m/s B. 6.4 m/s O C. 14 m/s CD 5.1 m/s E. 3.7 m/s
7. AS kg ball is initially at rest on a horizontal frictionless surface as shown to the right. A hard plastic cube of mass 0.5 kg slides across the surface at a speed of 26 ms and strikes the ball The figure below shows a graph of the force exerted on the ball by the cube as a function of time. Oslo Force (x10'N) 10 2.0 10.0 4.0 6.0 8.0 Time (x10's) A) Determine the total impulse given to the...
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