Aball is thrown upward in the air, and its height above the ground after t seconds is H(t) = 78 · t – 16t2 feet. Find the time t when the ball will be traveling downward at 39 feet per second. Give your answer as a decimal approximation with at least 3 decimal places. t = seconds

Aball is thrown upward in the air, and its height above the ground after t seconds is H(t) = 78 · t – 16t2 feet. Find the time t when the ball will be traveling downward at 39 feet per second. Give your answer as a decimal approximation with at least 3 decimal places. t = seconds

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Related questions

Q: Interference effects are produced at point P on a screen as a result of direct rays from a 490-nm…

Q: An object has a charge of 5.93E-16 C and a velocity of 20.6 m/s. It is moving through a magnetic…

Q: As a summer intern at a research lab, you are given a long sc that has two separate windings that…

A: Given data:- The length of the solenoid is L = 39 cm The diameter of solenoid d = 2.80 cm The…

Q: HW QI) Knowing that the coefficient of friction between the 25-kg block and the incline is H. =…

A: only one question per post . please post other remaining questions.

Q: 6.10 • An 8.00-kg package in a mail-sorting room slides 2.00 m down a chute that is inclined at…

Q: The linear attenuation coefficient for 2.0-MeV gamma rays in water is 4.9 m-1 and 52 m-1 in lead.…

Q: Question 5 A2 kilogram ball is dropped from the top of a building that is 160 meters high. What is…

Q: A hypothetical charge -0.23 pC with a mass 62 fgmoves in a circular path perpendicular to a uniform…

A: Here magnetic force work as a centripetal force

Q: Write down an expression for the gravitational filed strength of a planet of radius R and density p.…

Q: SA2) A 50-N force is used to push a 0.65 kg metal ball from rest. If the force is applied on the…

A: GivenApplied force, F=50 NMass of ball, m=0.65 kgInitially Ball is at rest Initial velocity of ball…

Q: Topic: THERMAL EXPANSION Question: Aside from being transparent, why are laboratory apparatus such…

A: Firstly, and perhaps a little obviously, glass is transparent which therefore makes monitoring…

Q: Consider a non-rotating space station in the shape of a long thin uniform rod of mass 6.85 x 10^6 kg…

A: the mass of space station , m = 6.85 * 10^6 kg the length , l = 1476 m force applied , F = 4.65 *…

Q: Consider a m-350kg sphere, made of metal whose density is ps=4200kg/m3. It is attatched to a ripe…

A: The buoyancy force is equal to the weight of the fluid displaced by the object. It is given as FB =…

Q: Pressure cookers increase cooking speed by raising the boiling temperature of water above its value…

A: Given data: The pressure is required at temperature T=125℃.

Q: 1. What is the constant acceleration of thrown from the Earth? 2. . A plane is running on the…

A: 1. g =9.80m/s2 The acceleration due to gravity that its magnitude , it represented as symbol g.…

Q: A mass (100 g) rests on a second mass (850 g) that is attached to a spring with k = 75.0 N/m. The…

Q: The magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius…

A: Inner radius of the toroid is equal to 0.7 metre Outer radius of the toroid is equal to 1.3 m…

Q: A stationary square coil of area A is brought over time t into the magnetic field B with its plane…

A: Area of square coil = A Number of turns in coil = N Strength of magnetic field = B

Q: A straight conductor of fixed length / is moving at 45 degrees to a uniform magnetic field of…

Q: The same amount of force is applied on the box in 3 different ways. In which situation will the work…

A: we know work done = force in the direction of displacement * displacement. so basically work done…

Q: In the figure, point P2 is at perpendicular dístance R = 28.2 cm from one end of straight wire of…

Q: Consider the given circuit, if R1 = 11.97 N and V1 = 5.5 V, what is the value of the resistance R2…

Q: A spring oscillator is slowing down due to air resistance. If the damping constant is 450 s, how…

Q: The figure shows wire 1 in cross section; the wire is long and straight, carries a current of 4.31…

Q: (a) Where in the plane of the two wires is the total magnetic field equal to zero? y = m (b) A…

Q: ou place a crate of mass 39.9 kg on a frictionless 2.08-meter-long incline. You release the crate…

A: Given: The initila speed of the object is 0 m/s. The length of the ramp is 2.08 m. The mass of the…

Q: We start with some review problems A crate of mass 22.9 kg rests on a level surface, with a…

Q: Two cables suspending a 100 kg object. The cables are at different angles from the horizontal. T1 T2…

A: The free-body diagram of the joint is shown below. Here, m is the mass.

Q: How many grams are in 5.60 x 1024 molecules of NaCI?

A: Given that The Molecules of the NaCl is (n) = 5.6×1024 molecules We need to…

Q: Two cables suspending a 100 kg object. The cables are at different angles from the horizontal. T2,…

Q: the frequency range for an AM radio is 540 kHz to 1600kHz. calculate the shortest range and the…

Q: If there are three identical capacitors, each 2 μF, what possible capacitance can be obtained if all…

Q: dimensional analysis to find how the speed vvv of a wave on a string of circular cross section…

A: Given the speed v of a wave on a string of circular cross section

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 7.80 kg and the…

Q: Two solid, uniform, isolated, conducting spheres contain charges of +8.0 µC and - 6.0 µC. The two…

A: According to conservation of charge Total charge on isolated system remains constant.

Q: Several species of bacteria, including Geobacter metallireducens, have been shown to "eat"…

Q: Instructions: • Write the GIVEN with their respective symbols and units. • Do not skip the…

A: Given that the angle of depression of an object on the ground from third floor window of a building…

Q: A horse is pulling a wagon of mass 400 kg horizontally with a constant acceleration of 0.1 m/s^2 on…

A: Newton's Second Law of Motion, also known as the Law of Force and Acceleration, states that applying…

Q: In the figure below, the current in the long, straight wire is I, = 8.40 A and the wire lies in the…

A: Force on a current carrying conductor in an external magnetic field F = i(L × B) L = length vector…

Q: What is the answer to this problem? A rigid container holds a gas at a pressure of 60kPa and a…

Q: An open organ pipe is tuned to a given frequency. A second pipe with both ends open resonates with…

Q: Calculate the velocity of a particle with charge 9, = 1.6 x 10-19 that moves at right angles to the…

Q: 3. Given the diagram, identify where the object is placed and describe the image being formed.…

A: The diagram shows a convex lens as the rays converge after hitting on the lens. Convex lenses are…

Q: Suppose 1.00 kg of water at 42.5° C is placed in contact with 1.00 kg of water at 19.5° C. (a)…

A: 1.00 kg of water at 42.5° C is placed in contact with 1.00 kg of water at 19.5° C Required b…

Q: Fred and George are 19.0 years of age when they left earth to travel to a distant planet 12.0…

A: GIVEN: Age of both twins Fred and George =19 yrs distance d =12 ly speed of Fred v1 =0.9c speed of…

Q: A graduated cylinder with glycerol has an initial reading of 100 mL. After dropping a wooden cube,…

A: Given(s): The volume of the glycerol, V1=100 mL Volume after submerging the wooden cube, V2=283.04…

Q: What is the rest energy (in MeV) of an atom with an mass of 6.43 u?

Q: Con vaA The Virtual imoge prodlucter g mioror is one-third the Size of the oójéet. a) 4 the object…

A: The u-v-f relation for a spherical mirror(concave/convex) is 1v+1u=1f ....(1) The…

Q: A certain superconducting magnet in the form of a solenoid of length 0.350 m can generate a magnetic…

Q: Find the charge stored in a capacitor with a capacitance of 50 µF and a potential difference of 10…

Concept explainers

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.

Question

A ball is thrown upward in the air, and its height above the ground aftert seconds is
H(t) = 78 · t
16t2 feet.
Find the timet when the ball will be traveling downward at 39 feet per second.
Give your answer as a decimal approximation with at least 3 decimal places.
t =
seconds

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

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

An object dropped from a height of 250 feet will fall according to the equation h=250−16t2h=250-16t2, where tt is measured in seconds, and hh is measured in feet.What is the height of the object after 2.1 seconds? feetHow long will it take for the object to hit the ground? secondsGive your answers as decimal values, accurate to 2 decimal places
A cannon ball is launched into the air with an upward velocity of 336 feet per second, from a 14-foot tall cannon. The height hh of the cannon ball after tt seconds can be found using the equation h=−16t2+336t+14h=-16t2+336t+14. A) What was the initial height of the cannon ball? feet B) How many seconds will it take for the cannon ball to hit the ground? seconds {Round to 3 decimal place.}
If an object is shot upward with an initial velocity, v 0, in feet per second (ft/s), the velocity, v, in ft/s is given by the formula v= v0 −32t, where t is time in seconds. Find the initial velocity of an object if the velocity after 2 seconds is 28ft/s.
My cat, Boots, takes 0.44 s to jump off his cat tower to the ground. What was his height from which he jumped in feet? Round to two decimal places.
Please help me solve this, You drive a car 1500ft to the East, then 2500 ft to the North. If the trip took 3.0 minutes,what was the direction and magnitude of your average velocity, in m/s?(1 m =3.281 ft.)
An apple is launched directly upward at 64 feet per second from a platform 80 feet high. The equation for this apple's height h at time t seconds after launch is h(t)= -16t2+64t+80. What is the height of the apple after 3 seconds?
While on a car trip of 2000 km, you travel half of the distance at 120 km/hr and the other half at 30.0 km/hr. On the return trip, you travel half the time at 120 km/hr and the other half at 30.0 km/hr. What is your average speed for the entire trip (in km/hr)? Type your answer here km/hr
A car travels with an average speed of 8.00 meter/second. A. What is the speed in km/s? B. What is the speed in mile/hour? Hint: 1km =1000.0 meters
How high (in ft.) will a ball rise if is tossed vertically upward with a speed of 100 ft/s? Hint: 1 inch = 2.54 cm.
. A Tesla can accelerate from 0-60 MPH in 2.8 seconds, yielding an average acceleration of 21.4 MPH/s. c. Convert this acceleration into m/s (meters/sec3). d. If 1.0 furlong = 660 ft and 1.0 fortnight = 2 weeks, convert this acceleration into furlongs/fortnight squared. %3D
You visit the Grand Canyon and drop a rock off the edge of a cliff. The distance ther ock will fall is 16 feet the first second, 48 feet the next second, 80 feet the third second, and so on in an arithmetic sequence. What is the total distance the object will fall in 6 seconds?
The Space Shuttle travels at a speed of about 6.23 x 103 m/s. The blink of an astronaut's eye lasts about 117 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?