A construction worker accidentally drops a brick from a high platform. What is the velocity of the brick after 4.0 s?

Q: A warehouse worker pushes a 19.1 kg box, increasing its speed from rest to 3.40 m/s. This…

A: Given data as per the question Mass of box =19.1 kg Speed = 3.40m/s

Q: What are the speed and period of a satellite in a 391.0 km altitude earth orbit? ​​(T = 5542 sec)

A: Radius of the earth = RE = 6371km = 6371* 103m Altitude of satellite = h = 391.0* 103m Mass of the…

Q: Calculate the angle of refraction at the core/cladding interface. Since, nair =1, ncore = 1.47,…

A: Given data nair=1ncore=1.47ncladding=1.45θincident=30

Q: 4. You drop a 6.0x10-2-kg ball from a height of 1.0 m above a hard, flat surface. The ball strikes…

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Q: A concave mirror with a 5 cm focal length is set 15 cm away from a 10-cm tall figurine. What are the…

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Q: A 2kg object is hanging from a rope that makes an angle of 30 degrees with the horizontal. The…

A: We can use the laws of motion and vector analysis to determine the acceleration of the object, the…

Q: How much energy does a 2,400-watt microwave oven use in 3 minutes? 133.000

A: Given : Time taken to use the oven = 3 minutes = 3×60=180 s Power output by the oven = 2400 watt…

Q: In an experiment in space, one proton is held fixed and another proton is released from rest a…

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Q: Question 3 Given |ū| = 5_ making angle 145 degree measured counterclockwise from +x axis. Find the…

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Q: A ray light makes an angle of incidence of 45o on one surface of a sheet of glass with n = 1,6 and…

A: According to the given data incident angle =  i =45 deg n=1.6 Angle of the refracted ray =r   we…

Q: For Q8 & Q9 use the shown Figure. V Two cylindrical resistors, R1 and R₂, are made of the same…

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Q: 3. You lift a 4.5-kg box from the floor and place it on a shelf that is 1.5 m above the ground. How…

A: Given value--- mass = 4.5 kg. height = 1.5 m We have to find--- How much energy did you use in…

Q: A 5.0-kg cart moving to the right with a speed of 2.0 m/s has a head-on collision with a 10.0-kg…

A: Given : Mass of the first  cart  m1 = 5 kg Initial Speed of the first cart v1 = 2.0 m/s Mass of the…

Q: 6) 1.89 Convert 0.045 barrels to gallons. 2. Do the following multi-step unit conversions: 7)…

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Q: An object is thrown vertically upward at 25.0 m/s. If it experiences an acceleration due to gravity…

A: Initial velocity of the object ( u ) = 25 m/s Acceleration due to gravity ( a ) = -9.8m/s2 Time ( t…

Q: Find the magnitude of a = 62 - 103 Question 2 Find the angle (in degree) of a = 6 - 103 (Measured…

A: According the given data a→=6i^-10j^ we need to find (1.)magnitude (2.)Direction Angle

Q: Consult Multiple-Concept Example 9 to explore a model for solving this problem. A person pushes on a…

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Q: The Starship Enterprise returns from warp drive to ordinary space with a forward speed of 51…

A: Given,  The initial velocity of starship enterprise,   u = 51 km/s The initial velocity of the…

Q: M (R₂+h) а = G- g 2

A: Givenag=GMRE+h2thusRE+h2=GMagtaking square root both sideRE+h=GMagthus,h=GMag-RE

Q: a small electric motor lifts a 12.5 kg mass to a height of 4.20 in 75.0 s. what is the power output…

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Q: Take note that the acceleration is negative because she has slowed down. What Have I Learned So Far?…

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Q: 2. An object is located 60.0 cm to the left of a concave mirror (with R = 30 cm). a) What is the…

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…

Q: A red blood cell contains 3.9 x 107 free electrons. What is the total charge of these electrons in…

A: Given data:  Number of free electrons (n) = 3.9×107 Required: The total charge of in the red blood…

Q: 17. In the diagram below, when the system is being pulled to the right, the least tension is and the…

A: 17. The least tension is T1 and the greatest tension is T3  18. Less. 19. Top, Bottom. 20.…

Q: A tank contains water vapor, water droplets, and chemically inert helium gas. How many independent…

A: Gibbs phase rule gives the relationship between the number of phases and number of constituents in a…

Q: The answers to this question are wrong is there any other way to complete this problem?

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Q: We can use this expression to determine the magnitude of the gravitational force you feel while on…

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Q: A 4.80-m-long, 500 kgkg steel uniform beam extends horizontally from the point where it has been…

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Q: Why are daytime and nighttime hours of equal length on an equinox?

A: Equinox: An equinox is an event that happens twice a year when the sun is directly over the equator.…

Q: An elevator is moving up at a constant velocity of 2.5 m/s, as illustrated in the diagram below: The…

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Q: Two thin rods of length 28.5 cm are placed side-by-side as shown below, separated by a distance x =…

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Q: You throw a baseball directly upward at time t=0 at an initial speed of  12.3 m/s. The maximum…

A: Given value--- initial speed = 12.3 m/s. maximum height = 7.72 m. We have to find--- At what time…

Q: How can you relate the Coulumb's law for electrostatics to your relationship with an important…

A: Coulomb ‘s law has a great applications in modern life. This law specifies the direction of electric…

Q: 5. A 20.0-N block is attached to the end of a rope, and the rope is looped around a pulley system.…

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Q: A light source of 625.nm illuminates two slits that are 1.2m away from a screen. The first order…

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Q: A coin leaves the top of a 1.2-m tall table with an initial horizontal speed of 5 m/s. How long will…

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Q: What must be the distance in meters between point charge q1 = 23.3 µC and point charge q2 = -68.1 µC…

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Q: 0: A parallel-plate capacitor has capacitance Co = 5 μF with no dielectric. It is then filled with a…

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Q: Learning Goal: To practice Problem-Solving Strategy 2.1 Motion with constant acceleration You are…

A: Given that, The initial speed of the car vi = 20 m/s Final speed vf = 0 m/s Deceleration a = 10 m/s2…

Q: 5: Freight trains can produce only relatively small accelerations and decelerations.    Part (a)…

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Q: this is the acceleration-time chart. please plot the velocity-time and displacement time curves. V =…

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Q: 4. Suppose you leave you house, hike 2.0 mi due east, then 3.0 mi due north, and then 6.0 miles 30°…

A: Given value--- you leave you house, hike 2.0 mi due east, then 3.0 mi due north, 6.0 miles 30°…

Q: Thor is battling the Frost Giants and he uses his hammer, Mjolnir, to zap them with lightning. Thor…

A: From the first glance we see that for substitution of velocity in the formula the units mentioned is…

Q: In the first law of thermodynamics,, Wis positive when O the work is being done on the environment…

A: As per first law of thermodynamicsits nothing but energy conservation, it says that the heat given…

Q: A 0.95-kg mass attached to a vertical spring of force constant 170 N/m oscillates with a maximum…

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Q: a spring that stands vertically on a table. The spring stift ck is 385 g. The block is oscillating…

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Q: A particle moving along a straight line decelerates according to a = -kv, where k is a constant and…

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Q: 6. Two ramp platfo up the walks differer the box

A: weight of  box = m g = W = 40 N Length of ramp = 2 m height of platform = 1 m total height = h = 2…

Q: one after the other, and move on parallel trajectories. The electron on the top trajectory is fired…

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Q: The density law is derived from the basic law D=m/v to reach D=M(wt) x Z / v x Na

A: Density =MassVolume D= m/v

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –