Human reaction time is usually about 0.20 s. If your lab partner holds a ruler between your finger and thumb and releases it without warning, how far can you expect the ruler to fall before you catch it? The nearest value i
Q: A 59.0-kg box is being pushed a distance of 6.70 m across the floor by a force P whose magnitude is ...
A: Work done by a force F→ in a displacement of S→ is F→·S→
Q: Given data : Voltage=D14 Volt Resistance =2 Ohms Find current
A: Given data : Voltage=V Resistance=R To find : Current
Q: Figure below is a graph that shows the velocity of an object along a straight line plotted against t...
A:
Q: Water drips from a faucet at a uniform rate of 4 drops/second. Find the distance between two succesi...
A: Given that:- Water drips from a faucet=4 drops/sec
Q: 4. In the figure below a given point charge is shown following five different paths through a unifor...
A: GivenA given point charge is taken from one point to another point in an electric fieldthrough diffe...
Q: Suppose a soccer player kicks the ball from a distance 34 m toward the goal. Find the initial speed ...
A:
Q: 1. Two charges, Q1 = +60.0x106 C and Q2 =-40.0 x 106 C, are 1.20 m apart. a. Draw a sketch of the pr...
A: Please note : As per answering guidelines I can answer the first three subparts of a multi-sub part ...
Q: From Lesotho Bank tower an object was observed on the ground at a depression o below the horizon. A ...
A: Let h be the height of the tower. The correct range of object is htanϕ while the range of the bullet...
Q: 3. Compute the electric flux of the following sets of variables: a. E = 7.2 x 105 N/C %3D A = 4.4 x ...
A: Electric flux φ = E̅•A̅ = E A Cosθ
Q: Consider the combination of resistors shown in the figure below. 12.0 N 4.00 N W 5.00 N a 6.00 N 8.0...
A: Draw the circuit diagram as below.
Q: Layla walks 250 m, 30° East of North, then 175 m directly east. Find the resultant displacement vect...
A:
Q: Ryujin and Yuna pull at two ropes attached to a cabinet with forces 80N and 120N respectively. What ...
A:
Q: An electron in a Hydrogen atom is in energy level n=7 and drops down into the ground state (n=1). Wh...
A: Given,an electron is in energy level, ni = 7nf = 1
Q: Problem: A student ( having a mass of 49 kg) falls freely from rest and strikes the ground. He comes...
A:
Q: At a given instant a 9kg rock has been dropped from a high cliff experiences an upward force of air ...
A:
Q: A 0.364 kg toy car is powered by four AA batteries (6.00 V total) connected directly to a small DC m...
A: kinetic energy of car =12mv2=12×0.364×2.352=1.005095 Joules If E is the energy suplied by the batter...
Q: A spherical shell of radius 3.09 cm and a sphere of radius 7.47 cm are rolling without slipping alon...
A: Here, we calculate the given as follow;
Q: 1.- (s0) Find n 2v' ミ22 4A
A: All values given in circuit. we have to find--- power P6ohm ?
Q: 9) What is the total initial acceleration of a tether ball on a 2.0 m rope whose angular velocity ch...
A: Given, ωi = 13.0 rad/sωf = 7 rad/st = 15 sec
Q: Three point charges lie on the x axis: q1 = 2.00 µC is at x = 0; q2 = 4.00 µC is at x = 2.00 m; q3 i...
A: Given Charge q1 = 2.0 uC at x = 0 Charge q2 = 4.0 uC at x = 2.0 m Charge q3 = Q at x = 4.0 m N...
Q: Two particles of masses 1 kg and 2 kg are moving towards each other with equal speed of 3 m/sec. The...
A:
Q: A sphere centered at the origin has a radius 0.200 m. A -4.20-µC charge is on the x-axis at x = 0.50...
A:
Q: initial acceleration of a tether ball on a 2.0 changes from 13 rad/s to 7.0 rad/s in 15 s
A: Let the initial angular velocity of the t and tether ball is ωi and the final angular velocity is ωf...
Q: determine the health-related benefits and safetv rA trekking Dun f 3. Diagram B Series speaker A) am...
A:
Q: A wave is traveling in a string at 50 m/s. When the tension is then increased 18%, what will be the ...
A: Since , ...
Q: Find the potential at point A. Express your answer in volts. ? VA = V Submit Request Answer • Part B...
A:
Q: If a plane moves along horizontally at 797.5 km/h and down at-30.4 km/h, what is the angle with resp...
A: Given that:- Horizontal velocity of plane =797.5km/h
Q: In B, what type of pressure must be applied to the left side for water to move to the right side of ...
A: Osmosis is the flow of water/solvent molecules through a semipermeable membrane from a region of low...
Q: 3. Consider the circuit at the right with a 1.5 V battery. a. How does the potential difference betw...
A:
Q: 9) What is the total initial aceleration of a tether ball on a 2.0 m rope whose angular velocity cha...
A:
Q: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are ...
A:
Q: 4. Is it possible for an object to have a lot of electrons but remain neutrally charge? Why or why n...
A: 4. Yes, it is possible for an object to have lot of electrons but remain neutrally charge. Because, ...
Q: A charge of 87.6 pCpC is uniformly distributed on the surface of a thin sheet of insulating material...
A: The charge density of the thin sheet is, σ=Total chargeTotal area=QA σ=87.6×10-12C47.2×10...
Q: 1. A driver is travelling with a speed of 31 km/hr when he accelerates for 4.7 s, his speed has been...
A: In this question we have to find the acceleration and distance travelled. Please give positive feedb...
Q: Determine the current i using Nodal Analysis. V2 1 A 12 2 8 V ± R=72
A:
Q: A ball is dropped a passenger on a jeepney that is moving with a constant velocity. Describe the pa...
A: The path of the ball will be a two degree parabolic curve as seen by the moving passenger. This is s...
Q: A television set rests on four rubber pads, each one having a height of 1.0 cm and a radius of 0.60 ...
A: The answer is below
Q: If the index of refraction for diamond is 2.42, what will the angle of refraction be in diamond for ...
A: Given data: Index of refraction for diamond (n2) = 2.42 Angle of incidence (i) = 60.0° in water Req...
Q: 1 Calculate the distance of the closest approach of a-particles from the copper nucleus, when a-part...
A: Given data: Energy for alpha particles U = 5 MeV Atomic number ZCu for copper = 29 Charge e=1.6×10-1...
Q: Two point charges ?1=−60.0 μC and Q2=50.0 μC are separated by a distance d1=20.0 cm, as shown in the...
A: Given that : Q1 = - 60μC and Q2 = 50μC are separated by a distance of d1 = 20 cm
Q: A car accelerates from rest to 30m/s while traveling a distance of 20m; what was its acceleration?
A: Given that:- vi=0 m/svf=30 m/sd=20 ma=?
Q: A = Axi + Ayj + Azk Its magnitude maybe obtained by scalar product also called the dot product, expr...
A:
Q: 0. You stand on a scale riding in an elevator at a constant upwards acceleration of 43g (13.07 m/s2)...
A:
Q: There are four sample P,Q,R and S with natural frequencies 66, 98, 130 and 258 Hz respectively. They...
A: Answer:- R Explanation:- Since the natural frequency of R (130 Hz) is closest to the frequency produ...
Q: A =6.00 N, East B =10.00 N, 30° North of East C =12.00N, 20° North of West D = 8.00N, South R = 43 N...
A:
Q: 42.its the part of the wave where the particles are least dense (a) compression (b) destruction (c) ...
A: Particles in the medium oscillate back and forth at right angles to the wave's travel direction. The...
Q: A rocket is rising vertically at a rate of 5400 miles per hour. An observer on the ground is standin...
A:
Q: An electron is accelerated by a constant electric field of magnitude 290 N/C. (a) Find the accelerat...
A: The answers are below
Q: same potential difference. They describe circular paths of radius 4 m and 2 m respectively. They Two...
A: Since, you have asked multiple questions we can answer only first question according to our guidelin...
Q: An alpha particle, which has charge 3.20 x 10-19 c, is moved from point A, where the electric potent...
A:
Human reaction time is usually about 0.20 s. If your lab partner holds a ruler between your finger and thumb and releases it without warning, how far can you expect the ruler to fall before you catch it? The nearest value is:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- A nerve conduction velocity test (NCV) is an electrical test that is used to evaluate the function of nerves. A NCV on a patient's sciatic nerve (length of 0.90 mm) reveals a conduction velocity of 30 m/sm/s. How long did it take the impulse to travel along the nerve? 27 s 0.90 s 0.030 s 33 sThe mass of a regulation tennis ball is 57 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 30 ms.(This number can also vary, depending on the racket and swing.) We shall assume a 30.0 ms contact time. One of the fastest-known served tennis balls was served by “Big Bill” Tilden in 1931, and its speed was measured to be 73 m/s. Suppose that the positive direction of the x-axis is along the direction of motion of the ball after Big Bill's hit. What is the x-component of the force exerted by Big Bill on the tennis ball in his record serve? If Big Bill's opponent returned his serve with a speed of 55 m/s what is the x-component of the force he exerted on the ball, assuming only horizontal motion?During a spacewalk, Dmitri finds himself floating 3 m from his space station's airlock. He only has one minute of air left. He has one detachable 10 kg toolkit, which he can toss to propel himself toward safety. How fast will he need to move to reach the airlock before he runs out of air?
- Biomechanics. The mass of a regulation tennis ball is 57 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 30 ms. (This number can also vary, depending on the racket and swing.) We shall assume a 30.0 ms contact time. One of the fastest-known served tennis balls was served by “Big Bill” Tilden in 1931, and its speed was measured to be 73 m/s. (a) What impulse and what total force did Big Bill exert on the tennis ball in his record serve? (b) If Big Bill’s opponent returned his serve with a speed of 55 m/s, what total force and what impulse did he exert on the ball, assuming only horizontal motion?The mass of a regulation tennis ball is 57 g (although it can vary slightly), and tests have shown that the ball is in contact with the tennis racket for 30 ms. (This number can also vary, depending on the racket and swing.) We shall assume a 30.0 ms contact time. One of the fastest-known served tennis balls was served by “Big Bill” Tilden in 1931, and its speed was measured to be 73 m/s. (a) What impulse and what total force did Big Bill exert on the tennis ball in his record serve? (b) If Big Bill’s opponent returned his serve with a speed of 55 m/s, what total force and what impulse did he exert on the ball, assuming only horizontal motion?Airplane flight recorders must be able to survive catastrophic crashes. Therefore, they are typically encased in crash-resistant steel or titanium boxes that are subjected to rigorous testing. One of the tests is an impact shock test, in which the box must survive being thrown at high speeds against a barrier. A 43-kg box is thrown at a speed of 340 m/s and is brought to a halt in a collision that lasts for a time of 6.6 ms. What is the magnitude of the average net force that acts on the box during the collision?
- A ball of mass m₁ = 0.204 kg and velocity 1.571 m/s collides elastically with a ball of mass m₂ = 0.290 kg and velocity -0.393î m/s. Assume the collision is head-on. (Express your answers in vector form. Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) Find their velocities after the collision (in m/s). Vif 2f = = cm, before m/s (b) Find the velocity of their center of mass before and after the collision (in m/s). cm, after m/s m/s m/sAn investigation of an automobile crash suggests that vehicle A was moving at 52 mph toward the south and vehicle B was moving at an unknown speed toward the north, when the two cars collided, sticking together after the collision. Vehicle A weighs 1350 lbs., and vehicle B weighs 1893 lbs. If the cars did not move significantly after their collision, find the initial speed of vehicle B in mph. Answer: mph (miles per hour)Ernest Goes Fishing. After putting his fishing gear in the canoe he walks back to his car to lock it. Upon returning he finds that the canoe was not secured properly and is now drifting along the pier parallel to it at 1 m/s, without friction. He runs down the pier at 5 m/s and jumps into the canoe that is moving in the same direction he is. When Ernest has landed in the boat, what is its final velocity (in m/s)? Ernest has a mass of 70 kg and the canoe (with fishing gear) has a mass of 30 kg. Use conservation of momentum for an inelastic collision.
- A ball of mass m₁ = 0.197 kg and velocity 1.561 m/s collides elastically with a ball of mass m₂ = 0.305 kg and velocity -0.408î m/s. Assume the collision is head-on. (Express your answers in vector form. Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) Find their velocities after the collision (in m/s). 1f V2f = cm, before (b) Find the velocity of their center of mass before and after the collision (in m/s). cm, after = m/s = m/s m/s m/sConsider the collision pictured below. While m2 = 10kg is initially at rest, horizontally moving mị = 6kg with a speed of v1 = 11.8m/s collides with it. After the collision, the two masses scatter with speeds of v, = 7.8m/s and v,. If 01 = 48°, determine the speed of m2 after the collision, v, =?. Express your answer in units of m/s with one decimal place. Note: Please note that we do not know whether or not this is an elastic collision. Just before the collisbn Just after the collision at rest Answer:Consider the collision pictured below. While m₂ = 7kg is initially at rest, horizontally moving m₁ = 6kg with a speed of v₁ = 13m/s collides with it. After the collision, the two masses scatter with speeds of u = 8.2m/s and ₂2. If 0₁ = 37°, determine the speed of m₂ after the collision, ₂ =?. Express your answer in units of m/s with one decimal place. Note: Please note that we do not know whether or not this is an elastic collision. Just (m₁) Answer: before the collision U₁ m₂ at rest Just after the collision U₁ U₂² "