An athlete can shoot an arrow at a speed equal to 4 times his speed while running. At what angle should he shoot the arrow to reach the maximum range?!
Q: Do conductors also have resistance? Can insulators be made to conduct?
A: Conductors are insulators are two types of material. The main difference between them is amount of…
Q: Learning Goal: To practice Problem-Solving Strategy 18.1 Ideal Gases. Lethal concentrations of gases…
A: Given: Initial pressure of chlorine, pi = 129 atm Initial volume of chlorine, Vi = 0.900 L Final…
Q: Two crates, one with mass m₁=5.5 kg and the other with mass m₂=10 kg, sit on the frictionless…
A:
Q: Angular Quantities: What is the angular speed, in rad/s, of a flywheel turning at 813.0 rpm? 63.84…
A: Given data The number of rotational, N=813.0 rpm
Q: A 10.20-g bullet is fired into a stationary block of wood having mass m= 4.990 kg. The bullet imbeds…
A:
Q: Using the density table provided in the directions or the density table in the unit's overview, find…
A: Introduction: Density of a matter is defined as mass of matter per unit volume of the matter. The…
Q: Calculate the molar heat capacity at constant pressure, Cp, of HCN as predicted by the equipartition…
A: As per the guidelines, i should answer only one question for the post. Please ask another question…
Q: angential speed, in m/s, of Nairobi, Kenya, a city near the equator? The earth makes one revolution…
A: GivenT=23.93 hr=6380 km=6380000 m
Q: a radial saw has a blade with a diameter of 14 in. Suppose the blade spins at 1000 rpm. a) Find the…
A: Given, Diameter of blade of radial saw , d = 14 in Radius = d2 =14in2 = 7 in Spinning of the blade…
Q: What would be the type of collision of the image below? Elastic Inelastic Completely Inelastic No…
A: Given: Initial Kinetic energy of red box= 250 J Initial momentum of red box = 50 kg m/s velocity of…
Q: cubical block of with side length l = 15.0 cm floats at the interface between some liquid [(?l =…
A:
Q: vertical block-spring system on earth has a period of 6.0 s. What is the period, in seconds, of…
A:
Q: A kite is hovering over the ground at the end of a straight 46-m line. The tension in the line has a…
A:
Q: A frictionless spring with a 6-kg mass can be held stretched 1.4 meters beyond its natural length by…
A: Given, Mass of object = 6 kg Force = 70 Newtons We need to find, Position of mass after t sec =?
Q: bconline.broward.edu An apple is 20 cm in front of a convex lens of focal length 75 cm. a) Where is…
A:
Q: An incompressible ideal fluid flows steadily through a pipe. At one point in the pipe, the fluid…
A: Given data: The pipe diameter at one point (d1) = 6.95 cm Speed (v1) = 1.95 m/s The diameter of…
Q: Questions 5, 6, and 7 refer to a block with mass m that is attached by a string with negligible mass…
A:
Q: Nitrogen gas under an initial pressure of 5.0×106 Pa at 15 ºC is contained in a cylinder of volume…
A:
Q: Satellite Motion: A satellite orbits the Earth once every 6.0 hours in a circle. G= 6.67 x 10-11…
A:
Q: - Your answer is partially correct. The temperature near the surface of the earth is 297 K. A xenon…
A: 1 amu = 1.67 × 10-27 kg Molar mass xenon = 131.29 g = 0.13129…
Q: What would the BEN in MeV be for a nucleus with 94 protons, 149 neutrons and an atomic mass of 223.1…
A:
Q: [first] Question: (refer to the photo below) Keep plate separation plate and area plate constant.…
A: Given: Plate separation, d = 7.4 mm Plate area, A = 280 mm2 Capacitance, C = 0.34 pF Voltage, V =…
Q: General Questions: A girl attaches a rock to a string, which she then swings counter-clockwise in a…
A: From the figure it is clear that rock is moving in a horizontal circleSince the rock is moving in a…
Q: Two wires of the same material, of lengths in the ratio 2 : 1 and diameters in the ratio 3 : 1 are…
A: Given, Two wire of same material. lengths ratio= 2:1 diameters ratio = 3:1 Tensions ratio= 1:4 We…
Q: Three building materials, plasterboard [k = 0.30 J/(s m C°)], brick [k = 0.60 J/(s m C°)], and wood…
A: The rate of heat transfer is the same for all three materials so Q/t =kpA∆Tp/L = kbA∆Tb/L =kwA∆Tw/L…
Q: Learning Goal: To make the connection between intuitive understanding of a seesaw and the standard…
A:
Q: The semimajor axis of Mars orbit is about 1.52 astronomical units (au), where an au is the Earth's…
A: Given: Semimajor axis of Mars, = 1.52 au Semimajor axis of Earth's orbit, = 1 au eccentricity, e =…
Q: A force F = (8 î – 5 ĵ) N acts on a particle that undergoes a displacement Ař = (4 î + ĵ) m. (a)…
A:
Q: A stone is dropped from rest into a well. The sound of the splash is heard exactly 3.10 s later.…
A: To solve this we use one of the equations of motion, s = ut+12at2, where s = the distance travelled,…
Q: Gravitational Force: Two small balls, A and B, attract each other gravitationally with a force of…
A:
Q: force of 116 N pulls due west on a body, and a second force pulls N 42.8 degrees west. The…
A:
Q: If you treat an electron as a classical rigid sphere with radius 1.40x10-17 m and uniform density,…
A:
Q: 1. What is the relationship between the focal length of a cylindrical mirror and its radius of…
A:
Q: bungee jumper, an 70-kg man, falls from the bridge at A with the bungee cord secured to his ankles.…
A:
Q: Refer to Concept Simulation 4.4 for background relating to this problem. The drawing shows a large…
A: Given: Mass of the large cube = M = 22.5 kg Mass of the small cube = m = 4.5 kg Coefficient of…
Q: ssm A patient recovering from surgery is being given fluid intravenously. The fluid has a density of…
A:
Q: (8c29p5) Consider the circuit in the figure (b). The curved segments are arcs of circles of angle…
A: Given: a = 12 cm = 0.12 m b = 6 cm = 0.06 m Current = i = 1 A Angle = θ = 35° = 35°180°×π rad
Q: 47. mmh When resting, a person has a metabolic rate of about 3.0 × 105 joules per hour. The person…
A:
Q: Problem 1. In figure below, a particle moves along a circle in a region of uniform magnetic field of…
A:
Q: Water flowing out of a horizontal pipe emerges through a nozzle. The radius of the pipe is 1.6 cm,…
A:
Q: containing 1.58 mol1.58 mol of an ideal gas is surrounded by a large reservoir at a temperature of…
A:
Q: Current Attempt in Progress The drawing shows a baggage carousel at an airport. Your suitcase has…
A:
Q: Is there more than one way to get two objects with identical masses to balance? How? Provide an…
A: Introduction:- Yes We Can balance two objects of identical masses, we have many ways to balance the…
Q: 1. A diver jumps off a springboard 10 m above water with an initial upward velocity of 12 m/sec.…
A:
Q: The room you are sitting in has a height of 3.6 m. Taking the air pressure at the (ceiling) as…
A: given data: Height of room=3.6 m air pressure=100000 Pa Air density=1.2 kg/m3
Q: The velocity of the water that flows from the base of a tank depends on the height of the water…
A:
Q: Compare temperatures TA and Tc. p (atm) 5 4 3 2 1 0 1 ● TA TC TA = TC not enough information → V…
A:
Q: 1. A ping pong ball (ball #1, mass of 2g) is held just above a tennis ball (ball #2, mass of 57g)…
A:
Q: A toy designer wishes to launch a projectile with the highest speed possible. Which of the following…
A:
Q: A 4.40 mm diameter hole forms in the bottom of a very large cylindrical water tank with an…
A: Given: Diameter of hole in bottom = 4.40 mm= 44 cm Diameter of tank = 4.62 m= 462 cm height of water…
the answer is 49 degrees
Step by step
Solved in 2 steps
- The world long jump record is 8.95 m (Mike Powell, USA, 1991). Treated as a projectile, what is the maximum range, in meters, obtainable by a person if he or she has a take-off speed of 8.2 m/s? Assume the motion is over level ground and the initial velocity makes an angle of 45° with the horizontal.You are really angry at your family, and in your frustration you decide you are going tothrow the pizza you bought for dinner onto the roof of your house. You are 6 metersfrom the house and the roof of the house is 3 meters above the ground. Assuming youtoss the pizza from ground level with an initial speed of 10 m/s at an angle of 60° (abovethe horizontal), how far onto the roof does the pizza land? Assume the roof is flat. Giveyour answer to 2 significant figuresIn frustration, Jimmy Alapag threw the ball with a velocity of 20.0 m/s at an angle of 45° above thehorizontal. What was the maximum range that the ball reached?
- A cannonball is fired from a gun with a muzzle velocity of 100 m/s at an angle of 30 degrees above the horizontal.a) What are the x and y components of the initial velocity?( , ) m/s b) How long (in seconds) will the cannonball be in flight before striking the ground? c) What is the range of the cannonball?Aprojictile is fired at an angle of 30 from the horizontal with some initial speed.if the initial speed of the second projectile is twice that of the first projictile,firing at what other projectiles angle results in the same range.neglect air resistance.Prove that, the range, R the time of flight, T and the Maximum height, H by a projectile are respectively given by; R = (5/g) sinze . T = (2vosine) a and H = V sin² e 29
- A cannon is placed at the bottom of a cliff61.5 m high. If the cannon is fired straight upward, the cannonballjust reaches the top of the cliff. (a) What is the initial speed of thecannonball? (b) Suppose a second cannon is placed at the top ofthe cliff. This cannon is fired horizontally, giving its cannonballsthe same initial speed found in part (a). Show that the range of thiscannon is the same as the maximum range of the cannon at thebase of the cliff. (Assume the ground at the base of the cliff is level,though the result is valid even if the ground is not level.)A baseball player hits a baseball when it’s 1m above the ground giving it an initial velocityof 61m/s at 18◦ above the horizontal. The catchers on the other team are very good at theirjobs and have a 100% success rate, so a homerun can only be achieved if the batter hits theball over a 2m fence 75m away from the plate. Does the batter get a homerun? (assume the batter is at the plate)A projectile that is thrown upward at an angle of 45° has a maximum range. Select one: O True O False
- The initial speed of a tennis ball is 57.5 m/s and the launch angle is ?i = 16°. Neglect air resistance.Question 1) What is the maximum height, h, of the tennis ball? in mQuestione 2) What is the range, R, of the tennis ball? in m info given: what angle results in the greatest height=90 For this 90° angle, the horizontal component of velocity is zero, so the initial velocity is completely in the vertical direction, resulting in greatest height Kato tries substituting ty,max for t, 0 for yi, and h for yf, and gets h = vi2 sin2 ?i 2g When ?i = 90°, sin2 ?i is maximum, so h is maximum what angle results in the maximum horizontal range=45° I substituted 2vi sin ?i g into the expression for the horizontal component of velocity, (vi cos ?i)t, and got R = 2vi2 sin ?i cos ?i g when ?i = 45°, 2?i = 90°, and sin 90° = 1, which is its maximum value.A rubber ball was launched at a velocity of +5 m/s at an angle where its range is at a maximum. A target is located exactly 2.0 meters from where the ball was launched. (a) What is the velocity of the ball as soon as it hits the ground? (vf = 5.0 m/s, 0 = -45°) (b) Will the rubber ball hit the target? If no, at what angle should the ball be launched for it to hit the target? (No, 25.81° or 64.19°In a friendly game of handball, you hit the ball at ground level and send it towards the wall with a speed of 18 m/s at an angle of 40o above the horizontal. (a) If the wall is 3.8 m away how high is the ball when it hits the wall? (b) What are the x and y velocity components just before it strikes the wall? (c) What is the magnitude and direction at this time?