18. VA fireman d = 50.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of 0,= 30.0° above the horizontal as shown in Figure P3.18. If the speed of the stream as it leaves the hose is vi 40.0 m/s, at what height will the stream of water strike the building? =
Q: An energy source forces a constant current of 2.5 ???? for 20 ??????? to flow through a light bulb.…
A: Write the given values with the suitable variables. I=2.5 At=20 sE=3 kJ=3000 J Here, I, t, and E are…
Q: In an archery test, the acceleration of the arrow decreases linearly with distances from its initial…
A: Given: The maximum acceleration is 15600 ft/s2. The amplitude of the system is 35.7 in.
Q: A projectile is fired vertically with an initial velocity of 153 m/s. Calculate the maximum altitude…
A:
Q: A proton is released from rest in a uniform electric field of magnitude 367 N/C. (a) Find the…
A:
Q: The angular position of a point on a rotating rigid-body as a function of time is given below. what…
A:
Q: Calculate the work done by a 50 N force pushing a cube 0.25 m.
A: We know thatW=F×dWhereW=workdoneF=forced=distance travelled in the direction of force
Q: on an alien world, they measure distance in fleeps and time in florps. If 1.6 fleep= 1 m and 5.2…
A: Given that 1.6 fleep= 1 m and 5.2 florps = 1 second, We have to find--- how many fleeps/florps…
Q: "What are the strength and direction of the electric field at the position indicated by the dot in…
A:
Q: Q.25: Volume of a gold Crown is measured to be 40.0cm'. The density of gold is 19.32gm/cm³. What is…
A: Given data : Volume of gold crown is represented by V Density of gold is represented by ρ Required…
Q: A ball is tossed vertically upward. When it reaches its highest point (before falling back downward)…
A: Given data: A ball is tossed vertically upward Required: The velocity, acceleration and Force of…
Q: Check here for instructional material to complete this problem. A person is on a car trip. Let d be…
A: Given data: The graph between position and time Required: The speed of the car
Q: ab #4: Telescope Optics (continued) Page 5 of 6 ke a refracting telescope using the lenses in the…
A:
Q: The value of g (acceleration due to gravity) at some location is 980cm/s². Convert this value to…
A: Given Data, Acceleration due to gravity is (g)=980 cm/s2
Q: A block attached to a spring is displaced from equilibrium to the position z=+3.4 m and released.…
A: Given, Block displaced (x=A= +3.4m ) Time period (T) = 3.3 sec
Q: There is a mass-spring that oscillates with simple harmonic motion. It has a mass of .5 kg, a period…
A: Solution:- Time period oscillation= 2π (M/K)0.5 Where, M = mass of block. K = spring constant.…
Q: The cube in the figure(Figure 1) contains no net charge. The electric field is constant over each…
A: The electric field across the cube is shown below.
Q: 5. I give a 8N block a quick push along a table, where the coefficient of kinetic friction between…
A:
Q: Assume that you are given that two objects have the following positions as a function of time (given…
A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts…
Q: A steel wire of length 2.08 m with circular cross section must stretch no more than 0.200 cm when a…
A: Given data, Force F=380 N Length L0=2.08 m Young's modulus Y=2×1011 Pa Change in length ∆L=0.2×10-2…
Q: QUESTION 2 One of the closest stars to our solar system, at roughly 1 pc away, has an apparent…
A: Solution:-
Q: Imagine that Earth had two identical Moons, following the same orbit but staying 90° apart. What…
A: Tides: Due to the gravitational pull of the Moon, Sun, and rotation of the Earth, the rise and fall…
Q: 1.[Single Choice] If sum of the charge surrounded by a closed Gauss surface is zero, it is sure that…
A: Given, Sum of charge surrounded by a closed gauss surface is zero
Q: Imagine that a car is traveling from your left to your right at a constant velocity. Which two…
A: The accelerator of a car changes the velocity of the car. And breaks will decrease the velocity of…
Q: D2-SCT41: FOUR RESISTOR CIRCUIT I-CURRENT In the circuit shown, the sizes of the resistors vary as…
A: In the circuit shown, the sizes of the resistors vary as R3 > R1 > R2 > R4 .
Q: The displacement between point A and point B is meters. The displacement between point A and point…
A: Given data: Position vs time graph Required: The displacement between point A and point B, point A…
Q: F = 300 N α = 12 a. Weight = ? b. Friction? (N = 393.8N) c. Resultant of F and N = ? m = 0 = 30°…
A:
Q: Question : Given the frequency f = 177 Hz, find the period in seconds. Provide your answer in…
A:
Q: 8. A particle q₁ = 8x10-6C is released from rest 1.50 cm from an infinite line charge (λ = 3μC/m).…
A:
Q: A 534 N boy drops from a diving platform 12 m above the water. Find the boy's speed 4m above the…
A:
Q: The fan is rotated so that it is at a 30° angle to the track as seen in figure 2. Draw a free body…
A:
Q: Computation. A rocket, with a mass of 1.8 x 104 kg, blasts off from earth with a uniform upward…
A:
Q: An automobile with an initial speed of 15 m/s slams on the breaks and decelerates at a rate of -5…
A: Given: The initial speed of the automobile is 15 m/s. The acceleration is -5 m/s2. The final speed…
Q: The permanent electric dipole moment of the water molecule (H₂O) is 6.2 x 10-30 C. m. Part A What is…
A:
Q: Calculate the inductance of the solenoid if it contains 800 turns, its length is 80.0 cm, and its…
A:
Q: Which of the following statements are possibly true about an object that is accelerating? 1. It is…
A: Given optional statements: An object that is accelerating, It is slowing down It is changing…
Q: A 2.36 kg ball is attached to an unknown spring and allowed to oscillate. The figure (Figure 1)…
A:
Q: A plane flies 150 km [N] and then 400 km [E]. What is the total displacement? a. 427 km [N21°E] b.…
A: Given data: Displacement (d1) = 150 km, towards North Displacement (d2) = 400 km, towards East…
Q: A roller in a printing press turns through an angle 8(t) given by 8(t) = yt² - Bt³, where y = 3.20…
A:
Q: 11.Which of the following statements is not true? A.The elapsed time for a process seem to be…
A:
Q: and-q 3.[Single Choice] Point charges Q surrounded by a closed Gauss' surface. Find the electric…
A: Given data: Two point charges Q and -Q surrounded by a closed Gauss' Surface Required: The electric…
Q: A parallel-plate capacitor is formed from two 9.6 cm-diameter electrodes spaced 1.1 mm apart. The…
A: diameter = 9.6 cm radius = 4.8 cm separation between the plates = 1.1mm electric field strength (E)…
Q: Given the period T = 1.71 sec, find the frequency in Hz. Provide your answer in Hz to the nearest…
A: Given data: Period (T) = 1.71 s Required: Frequency (f)
Q: An airplane with a speed of 93.2 m/s is climbing upward at an angle of 30.4° with respect to the…
A: Given data, Initial speed u=93.2 m/s The angle of projection, θ=30.4° Height h=793 m
Q: A 10 cm long solenoid with 860 turns and radius R = 3.0 cm has a 200 mA current flowing through it.…
A: Given value--- length = 10 cm. number of turns = 860 . radius = 3 cm. current = 200 mA. We have to…
Q: The instantaneous acceleration at time t = 8 s is m/s2. The instantaneous acceleration at time t =…
A:
Q: Two point charges Q₁ = +6.00 nC and Q₂ = -2.10 nC are separated by 45.0 cm. (a) What is the electric…
A:
Q: 6. A rigid object is rotating with an angular velocity w > 0. The angular velocity vector and the…
A: Direction of rotation will be same as that of angular velocity.But magnitude of angular velocity…
Q: What are the strength and direction of the electric field at the position indicated by the dot in…
A: Given:- Three charges is given as shown in the figure q1= 10 nC q2= -5.0 nC q3= 5.0 nC the…
Q: At time t = 16 s, the velocity of a particle moving in the x-y plane is v= 0.13i+2.40j m/s. By time…
A:
Q: The electric flux through the surface shown in the figure (Figure 1)is 30 Nm²/C. You may want to…
A: Given data: The electric flux (Φ) = 30 Nm2/C Angle between surface and electric field = 60°…
Step by step
Solved in 2 steps with 3 images
- A firefighter, a distance d from a burning building, directs a stream of water from a fire hose at angle i above the horizontal as shown in Figure P3.16. If the initial speed of the stream is vi, at what height h does the water strike the building? Figure P3.161106. A projectile is fired with an initial velocity of v. ft per sec upward at an angle of 0° with the horizontal. Find the horizontal distance covered before the projectile returns to its original level. Also determine the maximum height attained by the projectile. v.? sin 2 0 ;h v. sin? 6 2 g Ans. I = %3D 1107 The oon ahA monkey is sitting at the top of a tree 20 m above ground level. A person standing on the ground wants to feed the monkey. He uses a bow and arrow to launch the food to the monkey. If the person knows that the monkey is going to drop from the tree at the same instant that the person launches the food, how should the person aim the arrow containing the food? Air resistance is small enough to be ignored. O He should aim it at the monkey. O He should aim it below the monkey. O He should aim it above the monkey.
- 1. A water pistol aimed horizontally projects a stream of water with an initial speed of 5.00 m/s2. a. How far does the water drop in moving 1.00 m horizontally? b. How far does it travel before dropping a vertical distance of 1.00 cm?Eddie Manalak is a Filipino stuntman, he wishes to cross the 520m distance between two tall buildings by being shot from a cannon. He wishes to be launched at 60° to the horizontal so that he can spend more time in waving to the crowd. With what speed must he be launched? ANS. 76.7 m/sCalvin is standing on the roof of a 6.50 m tall house. His tiger Hobbes is on the ground, some distance away from the house. Calvin is throwing water balloons at Hobbes: Calvin is throwing the water balloons with speed VO at an angle of 0 below the horizontal. On his first try, Calvin hits Hobbes with the water balloon! Hobbes is 3.02 m horizontally from the base of the building and it takes 1.04 s for the balloon to hit him. Coordinate system: positive x points to the right and positive y points up.
- nte he 10. A ball is thrown at angle of 380 to the horizontal. What happens to the magnitude of the ball's vertical velocity during the time interval that the ball is in the air? fal ses 11. A baseball is thrown at an angle of 40.0° above the horizontal. The horizontal component of the baseball's initial velocity is 12.0 meters per second. What is the magnitude of the ball's initial velocity? AU / 1/S 12. For two vectors to give a maximum resultant, the angle between them should be11. A projectile is launched with a speed of 31.1 m/s at an angle of 71.2 degrees above the horizontal. The horizontal and vertical components of the initial velocity are shown in the first row of the data table. Fill in the table indicating the value of the horizontal and vertical components of velocity for the projectile during the course of its motion. Vy ax ay Time (s) (m/s) (m/s) (m/s2) | (m/s2) 10.0 29.4 1 2 3 4 64. An object was projected from a 100 m height location (point A), with the initial horizontal velocity Vix at 2.0 m/s and the initial vertical velocity Viy at 0 m/s. 100 O Vis B m/s²) a. What was the time for the object to travel in the air before hitting the ground at point B? (g = 9.81
- 3. A rescue plane flies at 90m/s (in the positive x- direction) at constant height h = 1000m toward a point directly over a victim, where a rescue capsule is to land. The capsule is released when the pilot's line of sight is at angle of o with respect to a vertical line as shown in the figure. 1ijetory Tte of sigln a. How long does it take of the capsule to reach the victim? b. How far ahead (distance along x) should the capsule be released? In othe words, what is the x-position of the victim in the figure.pA fireman d = 40.0 m away from a burning building directs a stream of water from a ground-level fire hose at an angle of ?i = 21.0° above the horizontal as shown in the figure. If the speed of the stream as it leaves the hose is vi = 40.0 m/s, at what height will the stream of water strike the building? m A fireman on the ground sprays water from a fire hose onto a building. The water leaves the hose with velocity vector vi at an acute angle ?i above the horizontal and curves downwards just before it strikes the building at a height h above the ground. The building is a horizontal distance d from the fireman.A speedboat moves on a lake with initial velocity vector vx = 8.65 m/s and vLy = -2.21 m/s, then accelerates for 6.69 s = 0.107 m/s². What are the components of the speedboat's final %3D at an average acceleration of aav.x = -0.108 m/s² and aav.v velocity, v2.x and v2.y? m/s U2,x m/s U2,y Find the speedboat's final speed. m/s final speed: II