An apple of mass m= 0.17 kg falls out of a tree from a height h = 3.5 m . Part A What is the magnitude of the force of gravity, 7mg, acting on the apple? Express your answer using two significant figures. a ? F = N Submit Request Answer Part B What is the apple's speed, v, just before it lands?

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At the surface of a certain planet, the gravitational acceleration g has a magnitude of 15.0 m/s^2. A 23.0-kg brass ball is transported to this planet. a.)What is the mass of the brass ball on the Earth and on the planet? Express your answers using three significant figures separated by a comma. ______ kg b.)What is the weight of the brass ball on the Earth and on the planet?Express your answers using three significant figures separated by a comma. _______ N

At the local grocery store, you push a 14.0-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 13.0 N you now accelerate the cart from rest through a distance of 2.20 m in 2.60 s. 19 BE MAR 8 Part A What was the mass of the dog food? Express your answer using two significant figures. G| ΑΣΦ m = Submit rovide Feedback Request Answer MacBook Pro Search or type URL tv A ? kg Course Home

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An 80.0 kg spacewalking astronaut pushes off a 660 kg satellite, exerting a 120 N force for the 0.580 s it takes him to straighten his arms. Part A How far apart are the astronaut and the satellite 1.10 min after the push begins? Express your answer with the appropriate units. d=

In an experiment conducted at Carleton university, following experimental setup has been prepared. In this experiment, block A is released from rest and strikes cart B. Neglecting the effect of friction, find the maximum displacement s that cart B travels beyond point C. The coefficient of restitution for the collision is e = 0.7. 0.6 m 30 Impact Test 3 kg 60° 1.8 m B 1 kg This region is the arc of a circle

1 The figure shows an overhead view of a 0.023 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force ₁ has a magnitude of 7 N and is at 0₁ = 29°. Force 2 has a magnitude of 11 N and is at 0₂ = 25°. In unit-vector notation, what is the third force if the lemon half (a) is stationary, (b) has the constant velocity ✓ = (10 - 15ĵ) m/s, and (c) has the ✓ = (10tî – 12t)) m/s², where t is time? (a) Number i (b) Number i (c) Number i 0₁7 i+ i i+ i i + i Units j Units j Units

Part A Find the magnitude of the force the Sun exerts on Neptune. Assume the mass of the Sun is 2.0x1030 kg, the mass of Neptune is 1.02x1026 kg, and the orbit is 4.50x10° km. Express your answer with the appropriate units. HÀ F = Value Units Submit Request Answer Ne Provide Feedback 4 MacBook F7

Two 150 kg lead spheres are suspended from 100-m-long massless cables. The tops of the cables have been carefully anchored exactly 1 m apart. Part A By how much is the distance between the centers of the spheres less than 1 m? Express your answer to two significant figures and include the appropriate units. Ax = ¹"¯μA Value Units ?