A 9.00-kg ball was dropped from rest at the top of a 220-m cliff. a. How much work is done by gravitational force on the ball as it hits the ground? b. What is the kinetic energy of the ball while on top of the cliff? c. Using work-energy theorem, find the velocity of the ball as it hits the ground.

Q: A circular coil of 70 turns and a radius of 5 cm is placed with its plane oriented at 90 degrees to…

A: Given data : Number of turns, N=70 Radius, r=5cm=0.05m Initial magnetic field, B1=0.1T New magnetic…

Q: A cube of pine wood, of side length 20 cm is held underwater. Ppine = 550 kg/m° Pwater = 1000 kg/m?…

A:

Q: 20. A 5 kg block is pulled along a rough level surface by a pull force P, where P = 300 N. The…

A:

Q: as in a container is at a pressure of 4.20 atm and a volume of 8.00 m³. (a) What is the work done on…

A: Given: Pressure contained is = 4.20 atm Volume of gas = 8.00 m3 To find:  Work Done on the Gas

Q: 2. Three best friends: Mr. Chapman, Detective Manchap, and DJ ChappleJax, were travelling to a…

A:

Q: The vector v has a magnitude of 5 meters and a direction of 60 degrees.Find the magnitude of the…

A:

Q: 1.Two cars collide at an intersection and stick together. Car A, with a mass of 1200 kg , was going…

A: Given: Mass of vehicle A, mA=1220 kg Mass of vehicle B, mB=1600 kg Initial velocity of vehicle A,…

Q: 7. An electron is in an infinite square well (1 dimensional) that is 9.6 nm wide. The electron makes…

A:

Q: A 4 Ω , an 8 Ω , and a 12 Ω resistors, are connected in series with a 12 V battery.     (a)…

A: GivenR1=4 ΩR2=8 ΩR3=12 ΩV= 12 Vfor resistances in series equivalent resistance , Req=R1+R2+R3and as…

Q: What component of Venus’s atmosphere causes the planet to be so hot? Explain why there is so much of…

A: Carbon dioxide (96 % of atmosphere), clouds composed of sulfuric acid, greenhouse effect is very…

Q: A 68.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.7 m/s.…

A:

Q: Billiard balls A and B, of equal mass, move at right angles and meet at the origin of an xy…

A: Think of this one as a conceptual question: If these balls are equal mass and there is a collision…

Q: On one side of a converging lens of focal length 40.8 cm, you position an object of height 4.01 cm…

A:

Q: A solid disk of mass equal to 7.0 kg and radius of 30 cm changes its rotations gradually from 45 rpm…

A:

Q: enters a A beam of protons with a velocity of 4 x 105 ms -¹ uniform magnetic field of 0.3 T at an…

A: Introduction: When a charge particles enter a uniform magnetic field and the direction of motion of…

Q: Describe some of the ways in which the Voyager and Galileo missions changed our perception of…

A: Voyager: faint dark ring. Galileo: geology of moon europa, magnetic fields on Ganymede, water…

Q: 6. An object whose weight is 100 lbf experiences a decrease in kinetic energy of 500 ft. lbf and an…

A: Given  W=100lbf (weight) ∆K.E=500ft lbf(change in Kinetic energy) ∆P.E=1500ft.lbf(change in…

Q: At what planetary configuration is the gravitational force exerted by Neptune on Uranus at a…

A:

Q: Question 3 A simple series circuit has two resistors connected to a battery. Each resistor has a…

A: We are given value of resistances. They are connected in series. We first find the effective…

Q: Write any word problem with the graph below and a 50-mhenry inductor

A: Given,  Inductor = 50 mH We need to :- Write any word problem with given graph and a 50-mhenry…

Q: Explain why x-rays are more harmful than infrared waves in medical imaging.

A: X rays and Infrared rays both are electromagnetic waves with different frequency ranges: X Rays:…

Q: A train horn emits a sound with frequency go. If a stationary person hears the horn with frequency…

A: Write the given values with the suitable variables. q0=182 Hzq=204 Hzvp=0 m/svs=340 m/s Here, vp and…

Q: Solved Problem: You've just been involved in an accident in which the damage is significant but none…

A:

Q: Pulsed lasers have many applications, but are very complicated to construct. One problem is…

A:

Q: A 1550 kg tank, initially at rest, fires a 60 kg shell horizontally with a speed of 525 m/s. What is…

A: Given data:  Mass of tank (m1) = 1550 kg Initial velocity of tank and shell is zero. Mass of shell…

Q: With what tension must a rope with length 2.80 m and mass 0.145 kg be stretched for transverse waves…

A: Given, Length = 2.8 m Mass = 0.145 kg frequency = 40 Hz Wavelength = 0.7 m we need to calculate,…

Q: a box with the mass m = 2.60 kg, starting from rest, falls a vertical distance h = 55cm before…

A:

Q: 6. Calculate the voltage output by the secondary winding of a transformer if the primary voltage is…

A: Given data:  Primary voltage (V1) = 50 V Number of turns in Secondary winding (N2) = 1500 turns…

Q: A spaceship of mass 142kg is going to use a planet for a gravitational assist - that is, use the…

A:

Q: 4.3. What is the classroom DF if the lighting equals 200 lux near its internal wall and 20 000 lux…

A: Solution: Given that  External Illuminance = 20000 lux Internal Illuminance = 200 lux We have to…

Q: about 30 m in diameter. Coming from Quezon City to exit towards España Blvd., a rider on a bicycle…

A:

Q: By what length will a slab of concrete that is originally 18.4 m long contract when the temperature…

A: Given data:  Original Length (L0) = 18.4 m Initial temperature (T0) = 28.2°C Final temperature (T) =…

Q: List the evidence that suggests the past (and possibly present) existence of liquid water on the…

A: Over 60 meteorites have been found that came from Mars. Some of them contain evidence that they were…

Q: A son disk of mass equal to 7.0 kg and radius of 30 cm changes its rotations gradually from 45 rpm…

A:

Q: Determine the strength of the electric current flowing in a closed circuit as shown above, if known,…

A: Given data: R1 = 15 Ω and R2 = 10 Ω ε1 = 9 V and ε2 = 13 V Required: The current flowing in the…

Q: 10. A singly ionized helium atom is in the ground state. It absorbs energy and makes a transition to…

A: Energy levels of He ion are given by En=-13.6Z2n2eV

Q: What is the pressure at the bottom of the tank when it is filled with water as shown, in kPa…

A: The depth of the watrer is h = 3-2 m = 1 m   The net pressure on it will be the atmospheric pressure…

Q: Q.4(a) Given R₁-16.00, R₂-24.02, R₁-32.002 and R4-40.052, find (i) the equivalent resistance of the…

A:

Q: Consider his circuit, which has C = 0.50 F and L = 0.20 H. With the switch open, the capacitor is…

A:

Q: Calculate the density of (111) Planes for Sc. Fcc and BCC

A: the planar density is defined as the number of atom per unit area on the plane. let the lattice…

Q: Determine Brewster's angle for light reflected from carbon tetrachloride with an index of refraction…

A: Given, light reflected from carbon tetrachloride with an index of refraction equal to 1.461.  We…

Q: The 2.4 kg, 4.6-cm-diameter disk is rotating as shown in. Part A Axle What is the angular momentum…

A:

Q: An Aluminum cable of length 3.5 m has 15,000 N tensile force acting on it, if the wire is only…

A: Given, The length of the alumunium cable, L=3.5 m The tensile force acting, F=15000 N Length by…

Q: Part A If the barge is made out of 4.3-cm-thick steel plate on each of its four sides and its…

A: It is given that the barge has a length of 40 m, a width of 22 m, and a height of 12 m. The…

Q: assume that for any movement, 10.0% of energy used by human muscles goes into performing the…

A:

Q: What is the earliest time, after t=0, when the capacitor has no charge on it?

A:

Q: If the swimmer could cross the English Chanel (32km) maintains the same velocity as for the first 50…

A: Given : Width of the canal,d=32 km=32000 m Pool's length d'=50 m Average velocity,dv=2.08 m/s (as…

Q: Please refer to part (a) of Figure 1 included. Here, alpha (the angle at the top of the triangular…

A:

Q: A capacitor has a peak current of 330 μA when the peak voltage at 330 kHz is 2.8 V. ▼ Part A What is…

A:

Q: A force of 9 pounds compresses a 15-inch spring a total of 5 inches. How much work is done in…

A: force = 9 pounds original length = 15 inch final length = 5 inch

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.