Hafthor Bjornsson, a strongman, broke the world record deadlift by lifting 501kg, with a total range of around 80cm, and taking 4 seconds to lock his knees. What was Hafthor's average power in this deadlift?

Hafthor Bjornsson, a strongman, broke the world record deadlift by lifting 501kg, with a total range of around 80cm, and taking 4 seconds to lock his knees. What was Hafthor's average power in this deadlift?

The Solar System

10th Edition

ISBN:9781337672252

Author:The Solar System

Publisher:The Solar System

Chapter5: Gravity

Section: Chapter Questions

Problem 32RQ: If you hold this textbook out at shoulder height and let go, at the instant you let go, does the...

See similar textbooks

Related questions

Q: 5. A 210-N mass is suspended from a horizontal beam by two cables that make angles of 29° and 53⁰…

Q: 25) In a flask, 114.0 g of water is heated using 67.0 W of power, with perfect efficiency. How long…

A: Write the given values with the suitable variables. P=67 Wm=114 g=0.114 kgT1=15 °CT2=25 °CC=4186…

Q: b) up c) 10 N down d) 9 N up Q10: A 2.5 kg block is pushed 5.0 m along a frictionless horizontal…

Q: gymnast is attempting to perform splits As she does this, you can assume that the force between her…

Q: A 1400kg car is traveling with an initial speed of 25.5m / s . Determine the car's speed after -…

A: Write the given values with the suitable variables. m=1400 kgu=25.5 m/sW=-2×105 J Here, m is the…

Q: Determine the magnitude of the voltage required to accelerate an electron to a Kinetic Energy of 8 x…

A: Given kinetic energy of electron (Ek)=8 x 10-15 joules Required voltage(V)=?

Q: The angular acceleration of a flywheel decreases uniformly from 9 rad per sec² to 3 rad per sec² in…

A: in this question we use simple equation of angular motion put value in equation and get ans .

Q: 21) How much heat is required to raise the temperature of a 225-g lead ball from 15.0°C to 25.0°C?…

A: Given: Mass of lead m=225 g, Initial temperature Ti=15°C, Final temperature Tf=25°C, Specific heat…

Q: Find the distance covered by car Speed=120 km/hr Time=2.4 hr

A: Given Speed v=120km/hr Time t=2.4hr

Q: Use the model for projectile motion, assuming there is no air resistance and g = 32 feet per second…

Q: Which phenomena did Michael Faraday explore to help him invent the motor and the generator? A.…

A: Michael Faraday designed an apparatus mercury bath which helped in transformation of electrical…

Q: Find the final velocity of car Initial velocity=0 m/s Acceleration=22 m/s2 Time=0.5 s

A: Given data: Initial velocity (u) = 0 m/s Acceleration (a)= 22 m/s2 Time (t) = 0.5 s Required: Final…

Q: A stone is shot on a level ground at an angle of 56° with the horizontal with an initial velocity of…

Q: A photographer has a camera with a focal length of 75 mm, in front of which an object is moving from…

Q: The figure shows two blocks connected by a cord (of negligible mass) that passes over a frictionless…

Q: A very thin conducting shell of radius R = 5.00 cm carries a uniform surface charge density 16-…

Q: 1/A copper calorimeter (S=0.2cal/g °C) of mass 70 g contains (400 g) of water and (100 g) of ice in…

A: In the given question, Specific heat of copper calorimeter (Sc) = 0.21cal/g0C Mass of copper…

Q: A D

A: For left wire, F = I(dl×B) = I [dl(j)×B(k)] = I(dl)B (i) For right wire, F = I[dl(-j)×B(k)] = I(dl)B…

Q: A photographer has a camera with a focal length of 75 mm, in front of which an object is moving from…

Q: A projector in the movie theatre has a lens with focal length of 27.50 cm and project on a screen…

Q: A solid insulating sphere of 2.0 cm radius is uniformly charged throughout its volume with an…

Q: Q8: A football player shot the ball at an angle of 40° above the horizontal at a speed of 8 m/s. How…

A: We have a ball that is shot with an initial velocity of u=8 m/s at an angle of θ=40o above the…

Q: At 9.3 °C, the length of the glass is 50 cm. After heated, the final length of the glass is 50.9 cm.…

A: Given At 9.3 °C, the length of the glass is 50 cm. After heated, the final length of the glass is…

Q: water is given by p= Po + pgy. ne pressure in a tank ter. The cross-sectional area of the tank is 20…

Q: From the figure shown in the following picture is larger: The angle of incidence is n₁ = 1.46 n₁ =…

Q: airplane diving at 36.90° with the horizontal drops a bag of sand from an altitude of 0.800 km. The…

A: Given:- An airplane diving at 36.90° with the horizontal drops a bag of sand from an altitude of…

Q: Which of the following is least likely to always hold valid about equipotential surface(s) and/or…

Q: 6. A 2-kg block is suspended from a spring having a stiffness of 800 N/m If the block is given an…

A: Write the equation of motion and solve the differential equation. Here, k is the spring constant, m…

Q: A conducting sphere of 3.0 cm radius has a cavity of 2.0 cm radius and sharing the same center.…

A: Electric field is the Force on a unit positive test charge numerically. The field lines are…

Q: An amateur in the study of space bought a imple astronomical telescope and the curved mirror was for…

A: Given the radius =600mm Find facal length

Q: 41) A certain automobile engine takes in 4.00 kJ of heat and performs 1.10 kJ of mechanical work in…

A: in this question we use engine efficiency equation.

Q: Find impulse Force 110 N Time=5 s

A: Impulse = force x time

Q: The wheel shown in the figure rolls without slipping on the horizontal plane. The angular velocity…

A: When a particle moves along the circular path, there are two acceleration work upon it 1. Tangential…

Q: Water is flowing through a pipe with a constriction. The area of the narrow section is one-half the…

Q: At room temperature, a typical person loses energy to the surroundings at the rate of 62 W. If this…

A: Given data : Rate of energy lost = 62 W

Q: 2.) The (net) current in a solar cell can only go in one direction. Explain which direction is…

A: Solar cell.

Q: Exercise 8.42 A bullet of mass 6.00 g is fired horizontally into a wooden block of mass 1.21 kg…

Q: Investigators measure the size of fog droplets using the diffraction of light. A camera records the…

Q: An elevator cab that weighs 27.3 kN moves upward. What is the tension in the cable if the cab's…

Q: the effort required to lift a load of 40 N ?

A: Given; Length,l= 6m effort arm= 3m What is the effort required to lift a LOAD ? load=40N

Q: In the figure, one end of a uniform beam of weight 380 N is hinged to a wall; the other end is…

A: weight = W = 380 N angle = 27

Q: A force of 40.0 N is applied in the positive x-direction to a block of mass 5.80 kg, at rest on a…

A: Determine the acceleration of the block.

Q: a noise level meter reads the sound level in a room to be 85 dB. What is the intensity of sound in…

A: Given sound level 85dB We know sound level in dB is dB=10log( I/I0) where l is intensity of sound…

Q: Situation 2. A ball was thrown at an angle of 60° with respect to the vertical. It travels a…

A: Given that, Projection angle, θ = 60° Horizontal distance, R = 70 m Vertical height, h = 2m (a)…

Q: Why is light both a particle and a wave?

A: Given Why is light both a particle and a wave.

Q: Each a particle in a beam of a particles has a kinetic energy of 4.5 MeV. Through what potential…

A: The given problem belongs to the phenomenon of photoelectric effect. The photoelectric effect is the…

Q: (A) 45.5 s. (B) 100 s. (C) 43.7 s. (D) 21.9. (E) 30.9 s.

A: Given Resistance(R)=25.3 kilo ohm’s capacitance (C)=2.49 mF voltage (V)=19.7 volt Required time at…

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.78 g coins…

Q: A solid insulating sphere of 2.0 cm radius is uniformly charged throughout its volume with an…

Q: Which of the following explains why when we land on our feet, we naturally bend our knees? : think…

A: why when we land on our feet, we naturally bend our knees?

Concept explainers

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.

Question

100%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

At the start of a basketball game, a referee tosses a basketball straight into the air by giving it some initial speed. After being given that speed, the ball reaches a maximum height of 4.25 m above where it started. Using conservation of energy, find a. the balls initial speed and b. the height of the ball when it has a speed of 2.5 m/s.
A block is placed on top of a vertical spring, and the spring compresses. Figure P8.24 depicts a moment in time when the spring is compressed by an amount h. a. To calculate the change in the gravitational and elastic potential energies, what must be included in the system? b. Find an expression for the change in the systems potential energy in terms of the parameters shown in Figure P8.24. c. If m = 0.865 kg and k = 125 N/m, find the change in the systems potential energy when the blocks displacement is h = 0.0650 m, relative to its initial position. FIGURE P8.24
Jane, whose mass is 50.0 kg, needs to swing across a river (having width D) filled with person-eating crocodiles to save Tarzan from danger. She must swing into a wind exerting constant horizontal force F, on a vine having length L and initially making an angle with the vertical (Fig. P7.81). Take D = 50.0 m, F = 110 N, L = 40.0 m, and = 50.0. (a) With what minimum speed must Jane begin her swing to just make it to the other side? (b) Once the rescue is complete, Tarzan and Jane must swing back across the river. With what minimum speed must they begin their swing? Assume Tarzan has a mass of 80.0 kg.
What average power is generated by a 70.0-kg moun-tain climber who climbs a summit of height 325 in in 95.0 min? (a) 39.1 W (b) 54.6 W (c) 25.5 W (d) 67.0 W (e) 88.4 W
If you hold this textbook out at shoulder height and let go, at the instant you let go, does the book have potential energy? Kinetic energy?
A 5.00-kg block is set into motion up an inclined plane with an initial speed of i = 8.00 m/s (Fig. P8.23). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of = 30.0 to the horizontal. For this motion, determine (a) the change in the blocks kinetic energy, (b) the change in the potential energy of the block-Earth system, and (c) the friction force exerted on the block (assumed to be constant). (d) What is the coefficient of kinetic friction?
A certain automobile engine delivers 2.24 104 W (30.0 hp) to its wheels when moving at a constant speed of 27.0 m/s ( 60 mi/h). What is the resistive force acting on the automobile at that speed?
A child of mass m starts from rest and slides without friction from a height h along a curved waterslide (Fig. P5.46). She is launched from a height h/5 into the pool. (a) Is mechanical energy conserved? Why? (b) Give the gravitational potential energy associated with the child and her kinetic energy in terms of mgh at the following positions: the top of the waterslide, the launching point, and the point where she lands in the pool. (c) Determine her initial speed V0 at the launch point in terms of g and h. (d) Determine her maximum airborne height ymax in terms of h, g, and the horizontal speed at that height, v0x. (e) Use the x-component of the answer to part (c) to eliminate from the answer to part (d), giving the height ymax in terms of g, h, and the launch angle . (f) Would your answers be the same if the waterslide were not frictionless? Explain. Figure P5.46
A child of mass m starts from rest and slides without friction from a height h along a curved waterslide (Fig. P5.46). She is launched from a height h/5 into the pool. (a) Is mechanical energy conserved? Why? (b) Give the gravitational potential energy associated with the child and her kinetic energy in terms of mgh at the following positions: the top of the waterslide, the launching point, and the point where she lands in the pool. (c) Determine her initial speed V0 at the launch point in terms of g and h. (d) Determine her maximum airborne height ymax in terms of h, g, and the horizontal speed at that height, v0x. (e) Use the x-component of the answer to part (c) to eliminate from the answer to part (d), giving the height ymax in terms of g, h, and the launch angle . (f) Would your answers be the same if the waterslide were not frictionless? Explain. Figure P5.46
The Flybar high-tech pogo stick is advertised as being capable of launching jumpers up to 6 ft. The ad says that the minimum weight of a jumper is 120 lb and the maximum weight is 250 lb. It also says that the pogo stick uses a patented system of elastometric rubber springs that provides up to 1200 lbs of thrust, something common helical spring sticks simply cannot achieve (rubber has 10 times the energy storing capability of steel). a. Use Figure P8.32 to estimate the maximum compression of the pogo sticks spring. Include the uncertainty in your estimate. b. What is the effective spring constant of the elastometric rubber springs? Comment on the claim that rubber has 10 times the energy-storing capability of steel. c. Check the ads claim that the maximum height a jumper can achieve is 6 ft.
Find the kinetic energy of the stone in the preceding example when it has fallen 5.0 m.
A 500-kg dragster accelerates from rest to a final speed of 110 m/s in 400 m (about a quarter of a mile) and encounters an average frictional force of 1200 N. What is its average power output in watts and horsepower if this takes 7.30s?