A “doomsday” asteroid with a mass of 1.0x1010 kg is hurtling through space. Unless the asteroid’s speed is changed by about 0.20 cm/s it will collide with Earth and cause tremendous damage. Researchers suggest that a small “space tug” sent to the asteroid’s surface could exert a gentle constant force of 2.5 N. For how long must this force act?

Q: A 2310 kg2310 kg space station orbits Earth at an altitude of 4.73×105 m.4.73×105 m. Find the…

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Q: A 1,959-kg car starts from rest at the top of a driveway 7.26 m long that is sloped at an angle of…

A: Given data: The mass, m=1959 kg The distance is d = 7.26 m The angle is θ=21° The force is F=2338 N…

Q: There is a rare alignment of three planets along the x axis (perhaps this is of astrological…

A: The gravitational binding energy between two masses m1 and m2 with r distance apart is given by…

Q: A 2.8 kg ball strikes a wall with a velocity of 6.7 m/s to the left. The ball bounces off with a…

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Q: Training is over, and the zombie apocalypse is upon us. You are at the top of a 50-m-high hill. A…

A: The velocity of the car at the bottom of the hill is:

Q: In the figure, a square of edge length 16.0 cm is formed by four spheres of masses m₁ = 5.20 g, m₂ =…

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Q: Is the speed of the proton wrien Express your answer in meters per second. A proton with mass 1.67 x…

A: Mass of proton mp = 1.67×10-27 kg Initial speed of proton v1 = 3.00×105 m/s Constant α = 2.12×10-26…

Q: A rock of mass m falls from the top of a cliff and it experiences a significant amount of air drag…

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Q: Determine the gravitational potential energy of the Moon-Earth system. The average distance between…

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Q: How far does the probe travel in total, in m?

A: mass of probe = 33 kg force on probe = 599 N initial velocity u = 0 m/s

Q: An object with mass m = 34 kg is pushed with 452 N of force to be moved across a distance of 4.6 m…

A: Given data: The mass is m=34 kg The applied force is F=452 N The displacement is s=4.6 m The…

Q: The 125-lb boy in the figure coasts (without pedaling) his bike off the top of a hill at a speed of…

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Q: An object with a mass of 1.74 kg is initially at rest upon a horizontal, frictionless surface. An…

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Q: It has been determined that a force over 200 N can injure the hand. What is the shortest period of…

A: The objective of this question is to find the shortest period of time it will take to stop a 2 kg…

Q: A 2kg mass is launched upward initially at 12.1 m/s. A drag force of 0.7v opposes the motion (where…

A: Given that: Mass of the object, m=2 kg Drag force, F drag=0.7v initial velocity u=12.1 m/s Let time…

Q: Two small forces are exerted on a small 186kg asteroid by a pair of space tractors. F⃗ 1F⃗…

A: The objective of the question is to find the magnitude of the net force exerted on the asteroid by…

Q: scientists are experimenting with a king of gun that may eventually be used to fire  payloads…

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Q: The net force on block A equals to 47.4 N, and the mass of block A is 14.5 kg.  If at t=0 sec, the…

A: Write the given data with suitable variables. F=47.4 Nm=14.5 kgu=0 m/st=4.8 s Here, F denotes the…

Q: Somone is standing on a piece of cardboard holding a wire that is attached to a vehicle.  The…

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Q: A student pushes a physics textbook of mass 1.19 kg across a table with a horizontal force of 5.66…

A: The objective of this question is to find the speed of the textbook after a certain period of time.…

Q: A mass m is suspended from a massless spring of natural length 90 cm with the spring constant k = 10…

A: Given: The spring constant is 10 N/m. The natural length of the spring is 90 cm. The extension in…

Q: A 2.0 kg object moving along the x-axis experiences the force shown in the figure. The object's…

A: Please note : As per answering guidelines I can answer first question and its sub-parts only. Please…

Q: A 2.0x 10° kg rocket is launched from the surface of the Earth. What is the escape speed (in km/s)…

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Q: what will be its velocity when it reaches 5.2x10^6m from the center of the new planet?

A: Principle of Conservation of Energy According to the law of conservation energy, energy can neither…

Q: Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 830 N for the…

A: Apply newton’s second law of motion along the motion of the lift, and substitute 95kg, for m,…

Q: An asteroid starts at rest infinitely far from Earth. The asteroid has a mass of 2.00×104 kg.…

A: The change in the gravitational energy of the asteroid can be determined as follows.…

Q: A 1000 kg rocket is drifting in space and it will crash into the surface of a Venus. What is the…

A: Given: The mass of the rocket is 1000 kg. The distance of the rocket from the venus is 109 km.

Q: A mass m is suspended from a massless spring of natural length 90 cm with the spring constantk = 10…

A: Natural length of spring = 90 cm  Spring constant ,k = 10 Nm-1 Elongation in spring = 9.9 cm…

Q: A mass m is suspended from a massless spring of natural length 90 cm with the spring constant k = 10…

A: Given  k = 10 N/m  xo = 90 cm (natural length of spring ) x = 6.8 cm = 0.068 m  (extension in spring…

Q: Jeremy, an astronaut employed by SpaceX, fully suited, weighs 2.1 x 10° N on Earth. He is about to…

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Q: The figure below is for a 7 kg box on a horizontal floor. Initially, you are pushing horizontally on…

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Q: In 2014, the Rosetta space probe reached the comet Churyumov– Gerasimenko. Although the comet’s core…

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.