(II) What average force is needed to accelerate a 9.20-gram pellet from rest to 125 m/s over a distance of 0.800 m along the barrel of a rifle?
Q: If you hit somebody from behind, his head seems to snap backwards. Why?
A: Force brings about motion and changes in it. This force produce acceleration and hence the changes…
Q: (1) A thin wire bent in a three-sided "u" shape into a block with each segment of equal length "b"…
A: since the wire is bent into three equal sides, the mass of each side is m/3 (if the mass of wire is…
Q: (II) The CM of an empty 1250-kg car is 2.40 m behind thefront of the car. How far from the front of…
A: Given that mass of the empty car is m = 1250 kg, and the cm is 2.40 m from the front of car. Two…
Q: (II) A falling rock has kinetic energy KE just before strikingthe ground and coming to rest. What is…
A: Given, Kinetic energy is KE. Assume T0 is the temperature of both the rock and the environment and Q…
Q: ) Ifa body losses half of its velocity on penetrating 3cm in a wooden block then how much will it…
A:
Q: (II) Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball’s…
A:
Q: When a junk car is crushed into a compact cube, does its mass change? Its weight? Explain.
A: The mass of an object is the amount of matter that is present within the object. According to the…
Q: (III) Determine the CM of the uniform thin L-shaped con- struction brace shown in Fig. 7–40. y -…
A: Given, Length of a rod lying in horizontal direction, L x = 2.06 m Length…
Q: (II) A 28-g rifle bullet traveling 190 m/s embeds itself in a3.1-kg pendulum hanging on a 2.8-m-long…
A:
Q: A novice pool player is faced with the corner pocket shot shown in Fig. 7–49. Relative dimensions…
A: Consider an elastic collision between two objects of equal mass, with target object initially at…
Q: . (I) Determine the CM of an outstretched arm using Table 7–1.
A:
Q: An object of mass (0.5 kg) falls from a height of (180 cm) to reach the surface of the earth, and…
A:
Q: (I) The distance between a carbon atom(m=12u) and an oxygen atom(m=16u) in the CO molecule is…
A:
Q: Given: Two Pulley System S = 58cm S, = 30cm Since the weight of load is in grams, we convert grams…
A: Given: Two pulley system Si=58 cmS0=30 cm F0=196000 dynesFi=93100 dynes To find: AMA and IMA
Q: (II) A 0.280-kg croquet ball makes an elastic head-on collision with a second ball initially at…
A: a) The velocity will be given,
Q: 47. A dropped rubber ball hits the floor with a speed of 8.0 m/s and rebounds to a height of 0.25 m.…
A: 47) Initial velocity (u) = 8 msLet the mass = m final height after rebound (h) = 0.25 m
Q: what is the speed of the ball at the lowest point? (b) Does the speed increase, decrease, or remain…
A: Given : Angle rotated, θ = 30° Length of the rod, L = 2.0 m Mass of ball, m…
Q: 12–95. The basketball passed through the hoop even though it barely cleared the hands of the player…
A:
Q: (II) A 52-kg woman and a 72-kg man stand 10.0 m apart onnearly frictionless ice. (a) How far from…
A:
Q: (II) A 125-kg astronaut (including space suit) acquires a speed of 2.5 m/s by pushing off with her…
A: Given The mass of astronaut is ma = 125 kg. The final velocity of the astronaut is vaf = 2.5 m/s.…
Q: (II) An atomic nucleus at rest decays radioactively into analpha particle and a different nucleus.…
A: From conservation of energy,
Q: (II) During a Chicago storm, winds can whip horizontally at speeds of 100 km/h. If the air strikes a…
A:
Q: If you place two apples on a table 5 cm apart, they will stay there until you move them. Why don't…
A: When two magnets are placed on table 5 cm apart then due to magnetism property both magnet attract…
Q: As shown in the figure, when the points P and Q move downward with a velocity of v =7 (m/s), what is…
A: Given, v= 7m/s And clearly both string make same tension on mass. and the acceleration in downward…
Q: (II) A baseball (m=145g) traveling 32m/s moves a fielder’s glove backward 25 cm when the ball is…
A:
Q: A 500 g particle moves along z-axis according to the equation z (t) = 12 -4t+5t-7t'+t with z in…
A: Given M = 500g = 0.5 kg Equation of position is. Z = 12-0.4t+5t²-7t³+t⁴
Q: (III) Air in a 120-km/h wind strikes head-on the face of abuilding 45 m wide by 75 m high and is…
A: Given:Air wind strikes = 120-km/hWide = 45 mHigh = 75 mMass = 1.3 kg
Q: (II) A ball of mass 0.440 kg moving east (+x direction) with a speed of 3.80 m/s collides head-on…
A:
Q: he catapult hurls a stone of mass 32.0 g with a velocity of 50.0 m/s at a 30.0 angle of elevation.…
A: Given: Mass of the stone, m = 32.0 g = 0.032 kg. Velocity of the stone, u = 50 m/s. Angle of…
Q: (III) A pendulum consists of a mass M hanging at the bottom end of a massless rod of length l, which…
A: Given information: The pendulum consists of a mass M The length of the pendulum, l Another mass m…
Q: (II) Three cubes, of side lo, 2l,, and 3l,, are placed next to one another (in contact) with their…
A: Three cubes with the sides l0, 2lo and 3l0 are placed next to one another in contact with their…
Q: 10. Which of the following would have the most momentum? O A baseball traveling at 60 miles per…
A:
Q: The system, which is initially stationary, started to move with m, and m3 weights as shown in the…
A: According to the Newton's second law Net force = mass x acceleration
Q: (II) You drop a 14-g ball from a height of 1.5 m and it onlybounces back to a height of 0.85 m. What…
A:
Trending now
This is a popular solution!
Step by step
Solved in 4 steps
