Answered: 5. What is the kinetic energy of a box…

5. What is the kinetic energy of a box of mass 0.75 [kg] sliding on a frictionless surface at a constant speed of 3.00 [m/s]? A. 1.46 [J] B. 2.25 [J] C. 4.50 [J] D. 3.38 [J]

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 38PE: (a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1hp=746W) to reach a...

See similar textbooks

Related questions

Q: A current of 5 A flows through a conductor for 2 minutes. What amount of charge passes through the…

A: Given data: Current (I) = 5 A Time (t) = 2 minutes Required: The total amount of charge passed…

Q: 27.3 In a 1.25 T magnetic field directed vertically upward, a particle having a charge of magnitude…

Q: Progress Check 1: Try it out! Draw the direction of force of each item. Assume that the magnetic…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: what is the potential energy of 1600lb elevator on the top of textile building 1448 ft. assume the…

Q: 12.) Light is incident on a photoelectric apparatus made with sodium plates. The distance between…

Q: nab

Q: 1. A circular loop with a diameter of 15.0 cm lies on a horizontal plane as viewed from above.…

Q: A particle is moving on top of a 2-dimensional. plane with its coordinates given in cartesian…

A: The circular motion best analogy to oscillations. A restoring force tends to bring the object back…

Q: A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency…

A: Given Datac=3×108 m/sμ=1.537ν=4.14×1014Hz

Q: The position of a mass oscillating on a spring is given by x=(6.7cm)cos[2πt/(0.71s)] (1) What is…

Q: A boat travels 50 miles downstream in 2 hours and it takes 5 hours to travel back upstream. What is…

Q: A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency…

Q: 5.) The threshold (cutoff) wavelength for the photoelectric effect in an unknown metal is 270nm.…

A: Given data: Threshold wavelength of the metal, λ0=270 nm=270×10-9 m

Q: Anthony and Kate are walking towards each other. Anthony, weighing 70kg has a velocity of 10m/s and…

Q: A 0.150-m-radius grinding wheel, starting at rest, develops an angular speed of 13.0 rad/s in a time…

Q: Given data: Displacement 8m Force = 430 N Calculate the work done

A: Given data : Displacement = d Force = F…

Q: A piece of stone thrown vertically upwards. It reaches the maximum height in 6 seconds.if the…

A: Given: The time taken by the object to reach the maximum height is 6 s. The acceleration due to…

Q: A piece of stone thrown vertically upwards. It reaches the maximum height in 6 seconds.if the…

A: Given: The time taken by the stone to reach the maximum height is 6 s. The acceleration due to…

Q: In one of the scenes in a movie, a stuntman is required to jump across a river 45.0 m wideon a…

A: Kinetic energy is a form of energy that an object or a particle has by reason of its motion. If…

Q: th of 2 m inside. Hinge passes thro ve density of 6.5 equal to Lite

Q: 3 The graph C of the equation y = gives the course taken by an oil tanker after leaving port, which…

A: To calculate distance travelled by the particle over a curve. First, consider an element of length…

Q: Which one of the following amino acids is essential for humans?

A: Given; Following are the amino acids shown; Which is essential for humans ?

Q: 5. The vectors a, b, c are shown. Construct your own vector using those 3 vectors. Your resultant…

A: Given: from the diagram. The vector a→ is the directed toward positive x-axis. The vector b→ is the…

Q: Q5) A CRT has vertical deflection plates of 1mm a parts and 2cm longs. The acceleration voltage are…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: You have exactly 3 minutes 31 seconds to get to your next class on time and that classroom is 371 m…

Q: You connect a battery, resistor, and capacitor as in (Figure 1), where E = 36.0 V, C = 5.00 μF, and…

A: In the given question, Voltage (ε) =36V Capacitance (C) = 5μF = 5×10-6F Resistance (R) =140Ω The…

Q: The reflection of perpendicularly incident white light by a soap film in air has an interference…

A: for the interference maximum: 2 t n = λ ( m -1/2) or 2 t 1.33 = 600 (m - 1/2)…

Q: 29 hot air balloons have a mass with a payload (without the air inside) of 200 kg, the temperature…

Q: A 3.00-kg fish is attached to the lower end of a vertical spring that has negligible mass and force…

A: Using energy conservation we can calculet speed . So kinetic energy 1/2mv^2=1/2kx^2 Then velocity…

Q: The series connection of two resistors, 3 kQ and 5kQ respectively, is connected in parallel with a…

Q: A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency…

A: As given, The frequency, f=4.54×1014 Hz Index of refraction of the material, μm=1.35 Index of…

Q: Starting in Albany, you travel a distance 406 miles in a direction 43.5 degrees north of west. Then,…

Q: A block of mass m=6kg with initial speed of vi=12.5m/stravels a distance d=11.9m on an inclined…

A: This the required FBD of the system. The friction force will be opposite to acceleration a and…

Q: A cylindrical resistor is to be constructed so that it offers the same resistance whether the…

A: The length of the resistance in millimeter is 81.5 mm , in centimeters it is 8.15 cm

Q: You launch a projectile horizontally from a building 35.2 m above the ground at another building…

A: Given data height h1 = 35.2 mdistance between two buildings R = 23.2 mheight where projectile hits…

Q: A mass of 'M' is attached to a spring whose upper end is fixed. The mass and stiffness of the spring…

Q: An engine produces a net torque of 20 N-m. If it rotates at 110 rpm what is the rotational power of…

Q: 3.) A 2-kg block is dropped from a height of 1.5 m above the end of a vertical uncompressed spring,…

A: Given : Mass of the block, m = 2 kg Height, h = 1.5 m Force constant of the spring, k = 100 N/m

Q: At a location where g = 9.80 m/s2, an object is thrown vertically down with an initial speed of 1.00…

A: Given data:- The acceleration due to gravity is a = 9.81 m/s2. The initial velocity of the object…

Q: Which of the following is the expression for the potential field given a folder-shaped capacitor…

Q: A proton has the same magnitude of charges as an electron, but the mass of a proton is almost 1000…

Q: The signal from a radio station is an electromagnetic wave. Find the electric field needed to give…

A: Given data:- The magnetic field amplitude is B = 6 x 10-11 WB/in2.

Q: find A mo I. about

A: Given:The mass of each object is m. The length of the triangle is l.

Q: Calculate the capacity of the water tank in (a) m³ (b) litre.

A: Given data; Length, l= 5 m Breadth, b= 2.5 m Height, h= 1.25 m Calculate; a. m3 b. litre

Q: On planet #3, you fire a projectile horizontally from the edge of a vertical cliff 32.5 m above the…

Q: The two masses m1=4kg and m2 are connected by a massless string passing through a massless pulley as…

A: M1 = 4 kg h= 5.2 m Speed of M2 when hit the ground (v2) = 4.3 m/s Due to string constraints, both…

Q: The magnetic force on a charged particle is in the direction of its velocity if A. it is moving in…

A: Introduction: When a charged particle enters the magnetic field with velocity so the charged…

Q: The polarization P of a dielectric material positioned within a parallel-plate capacitor is to be…

Q: Q1/The block of weight (w) is supported by arope that is warpped two and one half time around the…

Q: Green glasses. Your seatmate's glasses appear greenish (500 nm) when white light reflects from it.…

A: When light is incident on a surface coated with a thin film, the light first passes through the…

Concept explainers

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.

Question

5. What is the kinetic energy of a box of mass 0.75 [kg] sliding on a frictionless surface at a
constant speed of 3.00 [m/s]?
A. 1.46 [J]
B. 2.25 [J]
C. 4.50 [J]
D. 3.38 [J]

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 by step

Solved in 2 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

. A bicycle and rider going 10 m/s approach a hill. Their total mass is 80 kg. (a) What is their kinetic energy? (b) If the rider coasts up the hill without pedaling, how high above its starting level will the bicycle be when it finally rolls to a stop?
(a) How long will it take an 850-kg car with a useful power output of 40.0 hp (1hp=746W) to reach a speed of 15.0 m/s, neglecting friction? (b) How long will this acceleration take if the car also climbs a 3.00-m-high hill in the process?
Integrated Concepts (a) What force must be supplied by an elevator cable to produce an acceleration of 0.800 m/s2 against a 200-N frictional force, if the mass of the loaded elevator is 1500 kg? (b) How much work is done by the cable in lifting the elevator 20.0 m? (c) What is the final speed of the elevator if it starts from rest? (d) How much work went into thermal energy?
. In compressing the spring in a toy dart gun, 0.5J of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.02 kg. (a) What is the dart’s kinetic energy as it leaves the gun? (b) What is the dart’s speed?
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 7.30 s?
. An elevator is able to raise 1,000 kg to a height of 40 m in 15 s. (a) How much work does the elevator do? (b) What is the elevator’s power output?
. The fastest that a human has run is about 12 m/s. (a) If a pole vaulter could run this fast and convert all of her kinetic energy into gravitational potential energy, how high would she go? (b) Compare this height with the world record in the pole vault.
If only one external force acts on a particle, does it necessarily change the particles (a) kinetic energy? (b) Its velocity?
A running 62-kg cheetah has a top speed of 32 m/s. (a) What is the cheetahs maximum kinetic energy? (b) Kind the cheetahs speed when its kinetic energy is one half of the value found in part (a).
The chin-up is one exercise that can be used to strengthen the biceps muscle. This muscle can exert a force of approximately 8.00 102 N as it contracts a distance of 7.5 cm in a 75-kg male.3 (a) How much work can the biceps muscles (one in each arm) perform in a single contraction? (b) Compare this amount of work with the energy required to lift a 75-kg person 40. cm in performing a chin-up. (c) Do you think the biceps muscle is the only muscle involved in performing a chin-up?
Integrated Concepts A 75.0-kg cross-country skier is climbing a 3.0° slope at a constant speed of 2.00 m/s and encounters air resistance of 25.0 N. Find his power output for work done against the gravitational force and air resistance. (b) What average force does he exert backward on the snow to accomplish this? (c) If he continues to exert this force and to experience the same air resistance when he reaches a level area, how long will it take him to reach a velocity of 10.0 m/s?
One person drops a ball from the top of a building while another person at the bottom observes its motion. Will these two people agree (a) on the value of the gravitational potential energy of the ball-Earth system? (b) On the change in potential energy? (c) On the kinetic energy of the ball at some point in its motion?