A tennis ball thrown from the top of a building is given an initial velocity of 20 m/s straight upward. The building is 50 m high, and the ball just misses the edge of the roof on its way down. Using t = 0 as the time the ball leaves the thrower’s hand, determine a. the time at which the ball reaches its maximum height b. the maximum height c. the time at which the ball returns to the height from which it was thrown d. the velocity of the ball at this instant e. the velocity and position of the ball at t = 5 s

Q: Two cars, A and B, are travelling in the same direction, although car A is 183m behind car B. The sp...

A:

Q: A player kicks a football at an angle of 35° with the horizontal and with an initial velocity of 14....

A:

Q: .)A 35.0 m wire carries a current of 3 250 mA in a location where Earth’s magnetic field is 2.50 x 1...

A: Given: The length of the wire is 35 m. The current in the wire is 3250 A. The strength of the magnet...

Q: A closely wound circular coil consists of 700 turns with radius of 300 cm. What is the magnetic fiel...

A: Given information: The Number of turns in the coil (N) = 700 The radius of the coil (R) = 300 cm = 3...

Q: 1. How many access electrons are found in an object that has a net charge of -1.2 X 109 Coulomb? A: ...

A: charge of one electron = = -1.6×10-19 Columbs

Q: The position of an object is given by x = at3 - bt2 + ct, where a = 4.1 m/s3, b = 2.2 m/s2, c = 1.7 ...

A:

Q: A whistling train travels past a person standing still. The height of the tone of the whistle sharpl...

A:

Q: Pulling the plates of a charged parallel-plate capacitor apart: does not affect the capacitance incr...

A:

Q: A car is moving with uniform acceleration covers 450m in a 5 second interval and further it covers 7...

A:

Q: 7. A man weighs a fish with a spring scale attached to the ceiling of an elevator. While the elevato...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: What is the average kinetic energy in joules of nitrogen molecules at room temperature (20°C)? The ...

A:

Q: The x- and y- components of a displacement vector are -7.00 m and 8.00cm, respectively. What angle d...

A:

Q: Consider the following figure. (Assume V = 17.0 V, R, = 1.50 N, and R2 = 6.18 N.) 3.00N R2 4.00 N (a...

A:

Q: ЗА ЗА 4 A 2 A (с) (d) ЗА 4 A 2 A 2 A (e)

A:

Q: A rescue plane spots a survivor 116 m directly below and releases an emergency kit with a parachute....

A:

Q: A car is initially traveling at 50.0 km/h. The brakes are applied and the car stops over a distance ...

A:

Q: A whistling train travels past a person standing still. The height of the tone of the whistle sharpl...

A: Let the original frequency of whistle = f The velocity of train (v) = 60 kmhrThe velocity of sound (...

Q: A +2.00 nC point charge is at the origin, and a second -5.00 nC point charge is on the x-axis at x =...

A: Given value--- q1 = 2nC. q2 = -5 nC. We have to find--- What is the electric field at x = 1.20 m?...

Q: A charge of 5.0 µC exerts an attractive force of 10.0 N on an unknown charge 30.0 cm away. What is t...

A: Coulomb's law : The force of attraction or repulsion between two charged bodies is directly proporti...

Q: Show your solutions 1. A hair dryer pulls a current of 8000 mA from a 120 V power source. What is th...

A:

Q: The ratio of the radius of the Earth to that of the Moon is 10. The ratio of acceleration due to gra...

A:

Q: Consider a beam of electrons (each electron with energy E.) incident on a metal surface kept in an e...

A:

Q: AB = 5008.95 Ib AE = -4407.78 Ib BC = -2101.41 Ib BD = -7882.09 Ib BE = 2910 Ib CD = 4485.98 Ib DE =...

A:

Q: If a scaled drawing represents objects as 1/16 of their actual size, then an object that is 75.2 met...

A:

Q: Three forces act on the ring. If the resultant force FR has a magnitude and direction as shown, dete...

A: We have F1→+F2→+F3→=FR→ and given F1→=80cosθi→+sinθk→=8045i→+35k→F2→=-110k→FR→=120cos45osin(300)i→+c...

Q: In terms of energy unit, which does not belong? select the letter of your answer a. eV b.J Oc.V O d....

A:

Q: Cessna Marie throws a ball straight up. Ignoring air resistance, which of the following statements i...

A: Acceleration of the ball is due to acceleration of gravity (g=9.8m/s2) which remains always constant...

Q: of 60 degrees from the horizontal. What is the horizontal

A: Given  Initial velocity is v_o=4.7 m/a Angle of projection is theta =60 °  

Q: In the figure below, the coefficient of kinetic friction between the block and inclined plane is 0.2...

A: μk = 0.27θ = 59o   

Q: What is the magnitude of the strength of the electric field between two parallel conducting plates w...

A: Given: V=10,000 V = 104 Vd = 2.00cm =2.0*10-2 m

Q: A 12.5 V battery operates a 14.2 ohms flashlight intermittently for a cumulative time of 65.3 min. W...

A: Given V = 12.5 Volt  R = 14.2 ohm  Time t = 65.3 min = 65.3 × 60 sec  =3918 s 

Q: 3. Four wooden members are joined with metal plate connectors and are in static equilibrium (not mov...

A: Given: FA=2.5KNFB=2.1KN

Q: 3. *A 50 kg boy jumps off the front of a 1.5 kg skateboard moving forward. Find the skateboard's vel...

A:

Q: Problem No.1 İx = 0 m A force of 50 N stretches a spring in the figure by 200 mm. (a) What is the sp...

A: *** Since the given two questions are not related to each other, so according to the bartleby guidel...

Q: The ratio of the radius of the Earth to that of the Moon is 10. The ratio of acceleration due to gra...

A:

Q: 3. You are operating a remote-controlled model car on a vacant tennis court. Your position is the or...

A: Given: car's position with time x=2.0-0.25t2y=1.0t + 0.025t3 yours position (0,0)

Q: A pendulum consists of two 3.1-kg concentrated masses positioned as shown on a light but rigid bar. ...

A:

Q: A spring oriented vertically is attached to a hard horizontal surface as in the figure below. The sp...

A: Compression Springs are open-coil helical springs wound or constructed to oppose compression along t...

Q: Three resistors: R1 = 3 Ω, R2 = 6 Ω, and R3 = 9 Ω are connected in series to each other and to a 36 ...

A:

Q: Use the refraction rules for concave lenses to draw rays from the object (dark blue) to the image (w...

A:

Q: A car on a roller coaster starts at zero speed at an elevation above the ground of 26 m. It coasts d...

A:

Q: Find the image distance and image height of the image formed on the following cases. Then, describe...

A: Given data: The height of object is ho=8 cm. The object distance is u=60 mm. The focal length is f=4...

Q: 25. The radii of curvature of two surfaces of a convex-concave lens are 15 cm and 30 cm, respectivel...

A:

Q: A bullet which has velocity 150 m/s and mass 4 kg sticks to the stationary block. They move together...

A: Problem-2 Given:The mass of the bullet is 200 g. The initial speed of the bullet is 150 m/s. The mas...

Q: If the catapult’s projection angle was changed to 45° at the same initial velocity of 55ms, how long...

A: Given θ =45°u = 55 m/s

Q: The circuit in the figure below has been connected for a long time. Let R, = 8.80 N and R, = 3.80 N....

A: The difference in potential between two points that represents the work involved or the energy relea...

Q: Kindly compute the following case exercises: a. A ray of yellow light has a wavelength of 560nm wit...

A:

Q: Given the circuit below, compute (Using Kirchhoff's Rules) the: (1) Voltage and Current of R1, R2 an...

A:

Q: Use the component method of vector addition to add the resultant of the following vectors. A: 11 km ...

A:

Q: A particle is moving such that s =t3-6t2+18t +9, where s is in metres andt is in seconds. The minimu...

A: The position of particle is given by : s = t3 - 6t2 + 18t + 9 m  

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 –