What was the initial speed of the ball in m/s?

Q: How many neutrons per second are emitted spontaneously from a 1 mgsample of 252Cf? For 252Cf assume ...

A: Given: T12=2.745y=2.745*365*24*60*60sec T12=86,566,320sec The number of neutrons created per spontan...

Q: I need help with this problem. Thank you! a two dimensional disk has a radius of 4.6 cm it has a cha...

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Q: My answer was wrong

A: Use kinematic expression to find the time elapsed v=u+att=v-ua=27.4 m/s-9.4 m/s3.8 m/s2=4.74 s

Q: A car has a final velocity of 10 m/s and an acceleration of 2 m/s2. If it has been moving for 8 seco...

A: Given: The final velocity of the car is 10 ms-1. The acceleration of the car is 2 ms-2. In the secon...

Q: Please show work

A: Let λ and λ’, and E and E’ denote the incoming and outgoing gamma wavelengths and energies, respecti...

Q: Put the following units in order from smallest to largest millimeters 2 meters 3 kilometers 4 E micr...

A: Given units millimetres meters Kilometers And micrometers

Q: The following figure shows the shape and dimensions of a small dam. Assuming the water level is at t...

A: Given: Height of the dam i H=9m Width of the dam is W=45m Density of water ρ=1000kg/m3. g=9.8m/s2 ρg...

Q: What amount of energy does it take to assemble a charge configuration consisting of 3 points charges...

A: Given: The value of the charge is 6.75×10-6 C. The three charges are separated by a distance 0.163 m...

Q: A sample containing 127 g of 2³ Na (100% abundant) is exposed to a beam of thermal neutrons at a con...

A: (a) Let W and M denote the given mass and the molar mass of 23Na, respectively. Let N0, φ, and σ den...

Q: A new gel is being developed to use inside padding and helmets to cushion the body from impacts. The...

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Q: A geostationary satellite stationed at 10°E transmits a vertically polarized wave. Determine the pol...

A: Given: The position of geostationary satellite is 10∘. The earth station is situated at 5∘E, 45∘N. I...

Q: R1= 1Ω R2=2Ω R3=3Ω v=24V I=4A Find va,vb,vc,vd

A: Assume node O as grounded node, moving clockwise in the loop shown below.

Q: A student records the following information about a planet. Characteristics of a Planet • Its larges...

A: Background- Saturn is the sixth planet from the Sun and the second-largest in the Solar System, afte...

Q: Shown below is a long rectangular loop of width w, length l, mass m, and resistance R. The loop star...

A:

Q: Industrial CO2 lasers with l 5 10.6 mm are used in cutting and welding. How many photons/s are produ...

A: Given: The power output of the laser is 5 kW. The wavelength of the light is 10.6 mm.

Q: Advanced Physics Question

A: Given two boys are sitting on a rotating platform One say Boy L at the edge And other say G half way...

Q: Problem 3: Incline with Friction |A mass m = 2 kg is launched with an initial speed vo = 1 m/s down ...

A: Since you have posted question with multiple sub-parts. We will solve first three sub-parts for you....

Q: A 60.0-kg person rides in an elevator while standing on a scale. The scale reads 400. N. What is the...

A: Mass of person m=60 kg The apparent weight of the person (scale reading) R=400 N

Q: Find the uncertainty in a calculated average speed from the measurements of distance and time. Avera...

A: Given x= 3 m  and δx= 0.1 m And t=1.8 s  and δt= 1.5 s  

Q: Please show work

A: Given : work function, φ = 4.7 eV = 7.52 * 10-19 J 1 eV = 1.6 * 10-19 J  frequency, ? = 2 * 1015 Hz ...

Q: In a downhill ski race surprisingly little advantage is gained by getting a running start. This is b...

A: Given: The displacement of the skier is 65 m. The slope of the hill is 25°. a. The initial speed is ...

Q: You are tasked with designing the propulsion system for Eagle Rocketry. You must first figure out ho...

A: Solution:   Given Values, Propelling burning rate (V)= 10 cm3/sec                                   ...

Q: use the GRAPHICAL METHOD to solve the given problem below to recall what you have discussed in physi...

A: First, Draw the FBD of the above system & Let's say force in string BC to be T1 and force in str...

Q: Consider three cosmological perspectives – the geocentric perspective, the heliocentric perspective,...

A: Introduction: The cultural and philosophical implication of each point of view of the three cosmolog...

Q: A differential manometer is shown in fig 1. Calculate the pressure difference between M,N if the spe...

A: Given: Specific gravity of oil S = 0.8. Specific gravity of mercury SHg = 13.6 The pressure in term...

Q: Advanced Physics Question

A: Kinematic equations of motion are   Where vf = Final velocity, vo = Initial velocity, a = accelerat...

Q: Find the average energy E for: (a) An n-state system, in which a given state can have energy 0, e, 2...

A: Solution:   To calculate the Average energy we have to write the partition function as below:   z=∑i...

Q: Determine the number of molecules present in 1mole of 02? The molecular weight of 02 is 16g/mole

A:

Q: Consider the following operators defined over L, (R): d = x+ dx d *** Î_ = x dx Show that Î,Î = 2.

A: Commutators of two operators A and B is given by [A, B] = AB - BA

Q: What can we tell about astronomical objects from the light coming from them?

A: Answer:   Introduction:   The astronomical objects which are coming from light are usually referred ...

Q: What is the resolving power of an 8-inch telescope (if necessary, you may assume λ=550 nm)? By the w...

A: Given: The wavelength of light is 550 nm. The diameter of the aperture of the telescope is 8 in. The...

Q: Please show work

A: Let L0 denote the rest length of the meter stick, L denote the contracted length, v denote the speed...

Q: A helium nucleus (mass = 6.64×10−27kg, net charge = +2e)is fired directly toward a spherical conduct...

A: Given: Mass of Helium nucleus is m=6.64*10-27kg Net charge q=+2e q=2*1.6*10-19Cq=3.2*10-19C Radius R...

Q: what is the aim  of Observing Redox reaction experiment ?

A: The aim of observing redox reaction is to explore the relative oxidizing and reducing  the strength ...

Q: Use the following constants if necessary. Coulomb constant, k = 8.987 × 10º N · m²/C² . Vacuum permi...

A: Given information: The width of the fuel tank, w=19 cm=0.19 m The length of the fuel tank, L=12 cm=0...

Q: Recall that for practical purposes the number of orbits in the Bohr model of the hydrogen atom is li...

A:

Q: A point charge of 7.57*10^-6C and mass 68.7*10^-6 kg is uniform electric feild of 474 N/C i Released...

A: Given: charge, q = 7.57 * 10-6 C mass, m = 68.7 * 10-6 kg electric field, E = 474 N/C initial veloci...

Q: (a) Show that tidal force on a small object of mass m, defined as the difference in the gravitationa...

A: (a) The tidal force be defined as, Ftidal=GMmR-r2-GMmR+r2=GMm1R-r2-1R+r2=GMm4RrR2-r22

Q: Find the uncertainty in a calculated average speed from the measurements of distance and time. Avera...

A: Given: Function of average speed V(t,x) = x/t. Value of distance x = 9.8 m. Value of uncertainty in...

Q: You are driving in a car with your friend, who is speeding around the corner of a highway. You are w...

A: Speed is a scalar quantity. It is defined as the distance travelled by the car per unit time.   Velo...