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A weight lifter pulls on a 225 kg bar with 1600 N of force, but the bar does not move. How much work is performed?
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statics moment
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King Kong is at the top of the new base on Mars, which is 75 m high. If the acceleration due to gravity is 3.7 m/s^2. Calculate how long it took him to reach the ground if he jumped with no initial ve
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Question #1. Go to the Website https://toxtown.nlm.nih.gov/sources-of-exposureThen, on the Sources of Exposure section. There, you would source of exposure. Pick one Sources of Exposure the most inter
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please help me urgently needed and please insert a solution.
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1. which of the following produces the least thermal leakage? A. Operable windows B. Residential swinging doors C. Commercial entrance swinging doors D. Non-operable products 2. Paula is working out h
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Please find the screen shot below attached I look forward from hearing from you
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this is a university physic 2 lab i think it is simple. please read the both attachment. Building the Circuit 1. Open the circuit simulator by going to the following website: http://falstad.com/circui
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A force of 1200 N is applied to a drum of radius 80 cm which has a 12 kg mass, m1, attached by a cord wound on the drum. A second drum of radius 41 cm is bolted on the first and has a 39 kg mass, m2,
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a wrecking ball has a mass of 315 kg. if it is moving at a speed of 5.12 m/s, what is it's kinetic energy?
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A championship weight lifter did 1.10 ¥ 104 J of work on a set of barbells weighing 3680 N. How much gravitational potential energy did the barbells have at the maximum height of the lift?
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Can you help me with this question? :((
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An array of radio telescopes working at a frequency 3GHz is to be used to observe a galaxy which lies at a distance of 600Mpc. What size of array would be needed to resolve features in the galaxy with
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A championship weight lifter did 1.10 x 104 J of work on a set of barbells weighing 3680 N. How much gravitational potential energy did the barbells have at the maximum height of the lift? Show your w
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. Air molecules stay in the atmosphere without escaping into space. What is the force acting on the molecules of the atmosphere and the Earth?
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How many fully submerged air filled massless balls of radius 0.1 m are necessary to raise a sunken ship of mass 50000000kg? Assume only 10% of 200000m^3 of its volume contributes to its buoyancy.
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How many fully submerged massless air filled balls of radius 0.1m are necessary to raise a sunken ship of mass 50000000kg? Assume that only 10% of 140000 m^3 of the volume of the ship contribute to it
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Hey! so I have this one question I'm stumped with. This is grade 9 physics by the way. I'm making a diagram of a circuit. Here were the instruction I was assigned: You need to design a home that meets
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A non-ideal inductor (i.e., it has its own unknown resistance RL and its own power factor of 0.5) is connected in series with a resistor R1 = 20 Ω and a capacitor with XC = 180 sqrt(3) Ω. The voltage
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PHYSICS LAW OF MOTION A man is pushing a cart weighing 38 kg at a plane surface. Assuming the frictional force of the surface is 48N. What is the coefficient of its static friction at 2 significant
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Help me with my assignment please
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1 You start pushing a 5 kg block from rest on a horizontal surface with a horizontal force of 40 N. If the friction has a friction coefficient of u = 0.2, how much movement energy does the block get w
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A dam is used to block the passage of a river and to generate electricity. Approximately 5.73 ́ 104 kg of water fall each second through a height of 19.6 m. If 85 % of the gravitational potential ene
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In Biomechanical study, researchers often use a force platform to analyze running performance. In the middle of Adam’s stance phase during a running stride, the force exerted by the ground on Adam’s r
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I need help with this worksheet
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rock a gas a mass of 250 grams. it took 6836 j to increase its temperature from 27 degrees C to 37 degrees C . what is the specific heat capacity
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1. A particle with a mass of 3.8 × 10-20 kg is oscillating with simple harmonic motion with a period of 3.1 × 10-5 s and a maximum speed of 2.0 × 103 m/s. Calculate (a) the angular frequency and
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A sound wave has a frequency of 2,500 Hz. Assume the velocity of sound is 331 m/s. Round your answers to have 2 decimal places.
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A gas expands at constant pressure from an original volume of 2.0 L at 22 °C to a volume of 4.0 L. Calculate the new temperature?
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what is the frequency of a wave travelling at 400m/s with a wavelength of 0.003m
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Frequency response and transfer functions
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how to know if the diode has the highest resistance in the forward direction or the reverse.
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Use the momentum equation for photons found in this week's notes, the wavelength you found in #3, and Plank’s constant (6.63E-34) to calculate the momentum of this photon:
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A bike wheel is spinning around it’s central point (axis). Do all the point on the outer edge of the wheel move at the same speed
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Need physics questions answered that require use of LTSpice
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Youngs doubles experiment is performed with white light . We place a yellow filter in front of one of the slits and a red one in front of the other we observe?
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would change your weight but not your mass?
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A pulley system has an efficiency of 87.5%. How much rope must be pulled if a force of 648 N is needed to lift a 105 kg desk 2.46 m?
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Can someone solve these exercises
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Andy has two strong magnetic marbles of equal size. What will happen when he puts the two marbles about 2 centimeters apart?
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One of the moving parts of an engine contains 1.60 kg of aluminum and 0.300 kg of iron. The part can be safely operated at a maximum temperature of 210°C. How much heat is required to raise its temper
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Find the x-component of the following vector: A vector representing 520mi @ 222.2°
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A marble rolls off horizontally from the edge of a tabletop 1.50m above the floor, It strikes the floor 20m from the base of the table. Question : ......1) How long does it take the marble to reach th
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Jenny wanted to make 3 molecules of a substance made with aluminum and oxygen. How many aluminum and oxygen atoms will she need?
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Consider the network of four resistors shown in the diagram, where R1R_1" role="presentation" style="display: inline; font-style: normal; font-weight: normal; line-height: normal; font-size: 13px; tex
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physics conceptual question
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how long must a no.22 gauge aluminum wire be if it has a resistance of 2.5 ohms the diamheter of no.22 wire is 6.44x10
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Calculate the amount of energy required to melt 235 grams of aluminum at its melting temperature of 658 degrees celcius
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When a baseball player catches a baseball, the glove "gives" or moves backward. How does this movement affect the change in momentum of the baseball? The change in momentum increases because the impac
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Angler fish emit light through bioluminescence. An angler fish is swimming in a fish tank that has a film on the inside of the glass. The water in the tank has an index of refraction of 1.10, the film
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