12,762 Answered Questions for the topic physics

Physics

09/04/22

The gravitational potential energy of a body depends on...
The gravitational potential energy of a body:1) depends on the fluid that surrounds the body2) does not depend on the mass of the body3) depends on the body temperature4) depends on the chosen... more
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Physics

09/04/22

Physics Question
Dear experts, Im having trouble answering the following question:If the potential difference across an ohmic conductor is halved, the dissipated power:1) increases by a factor of 42) decreases by a... more
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Physics

09/03/22

Can you please help me with this problem??
A snail moves with an average velocity of 0.01 ms^-1 . How much time will it take the snail to travel a distance of one mile? A mile is roughly 1.6 kilometer.a- More than 44 hours.b- 160 sec.c-... more
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Physics

09/03/22

High school physics momentum
If a 22 g bullet, shot straight up into the air, reaches an altitude of 4.59 km, what is the recoil velocity of the 3 kg rifle.answer: -2.2 m/s
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Physics

09/03/22

High school physics momentum
A 3.2 kg object is dropped from a height of 3.4 m. what is the momentum (in kgm/s) after 0.22 seconds?the answer is 6.49 kgm/s, plz show work
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Physics

09/03/22

Determine the value of the voltage v in Figure P 3.4-9
Here is a figurehttps://im.ge/i/ObwwmS
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Physics

09/01/22

Find the energy equivalent to the spilled oil in joules
in 2010, a well being filled from the deep water horizon platform in the golf of Mexico blew out, spilling some 5 million barrels of oil into the water over three months. Find the energy equivalent... more
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Physics

09/01/22

Three point charges are arranged in a horizontal line as shown below.
Three point charges are arranged in a horizontal line as shown below. Find the electric forces (in units of kQ2/R2) on the charges given the following: Q1 = 2 Q, Q2 = 125 Q, Q3 = 108 Q, r1 = 1 R,... more
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Physics

09/01/22

What is the magnitude of the electric field of a proton at a distance of 25 micrometers?
What is the magnitude of the electric field of a proton at a distance of 25 micrometers? Remember, the charge on a proton is 1.6e-19 C. (This is given on your formula sheet.) (in units of N/C)
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Physics Math

09/01/22

Help me solve this!!
A rectangular airstrip measures 33.00 m by 280 m, with the width, measured more accurately than the length. Find the area (in m2), taking into account significant figures.
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Physics Math

08/31/22

Help me solve this
Two boats start together and race across a 58-km-wide lake and back. Boat A goes across at 58 km/h and returns at 58 km/h. Boat B goes across at 29 km/h, and its crew, realizing how far behind it... more
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Physics

08/31/22

Velocity Question
The position of a particle as a function of time is given by x(t) = (4.4 m/s2)t2 - (3.47 m/s3)t3.What is the velocity of the particle, in m/s, at t= 2.26 s?
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Physics

08/31/22

Physics Question
A rocket moves straight upward with an acceleration a(t) = A - Bt1/2, where A and B are constants, and a is in m/s2 and t is in seconds. What are the units of A?
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Physics

08/31/22

Velocity (Vertical Component)
A ball is thrown from a rooftop with an initial downward velocity of magnitude vo = 1.3 m/s. The rooftop is a distance above the ground, h = 42 m. In this problem use a coordinate system in which... more
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Physics

08/30/22

Amazon is experimenting with drone delivery and you are asked to determine a drone's delivery route.
Amazon is experimenting with drone delivery and you are asked to determine a drone’s delivery route. The drone will leave the Amazon warehouse, make two deliveries, and then return to the... more
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Physics

08/30/22

The radius of earth is 3950 miles and oceans cover 69.5% of its surface to an average depth of 12100 feet.
The radius of Earth is 3950 miles, and oceans cover 69.5% of its surface to an average depth of 12100 feet. Calculate the volume of Earth’s oceans in cubic miles, meters cubed, and gallons. Express... more
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Physics

08/30/22

Find the magnitude of the total displacement, in meters, of the rollercoaster
A roller coaster first travels down a straight track at a distance of 42.5 m at an angle of 55.0O below the horizontal. It then continues along a straight horizontal section of the track for a... more
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Physics

08/30/22

Grace is driving her Ford at 75.0 km/h, when she sees a stop sign, 45.0 m ahead, she slows down the car at a rate of 4.50m/s^2. Would Grace be able to stop the car at the stop sign? Explain
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Physics Math

08/29/22

Help me solve this problem!!
A man on a road trip drives a car at different constant speeds over several legs of the trip. He drives for 55.0 min at 75.0 km/h, 17.0 min at 90.0 km/h, and 35.0 min at 45.0 km/h and spends 40.0... more
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Physics

08/29/22

Which of the following charge is not possible to occur?
a) 1.6 x 10^-19Cb) 3.2 x 10^-19Cc) 3.6 x 10^-17Cd) 3.6 x 10^-22CI'm getting D as the answer, is it correct?
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Physics

08/29/22

A thoroughbred racehorse slows down to a stop from 17 m/s, decelerating at a rate of -7.56 m/s2. How long does it take for the horse to slow down?
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Physics

08/28/22

In which case was more work done on the box by the 4.0 N force?
A box is supported by a 4.0 N vertical force and carried 2.1 m horizontally across a room at constant speed. Then, the same box is pushed 2.1 m horizontally across a smooth table (smooth enough to... more
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Physics

08/28/22

What is the net force?
A runner with a mass of 75 kg accelerates from 0 to 7 m/s in 4 s. Find the net force on the runner using the alternate form of Newton's second law.Answer should be in N.
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Physics Math Mathematica

08/28/22

Need help with physics problem
Charge q2 in the figure is in equilibrium. Assume q = 5.4 nC. (+)q1 q ... more
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Physics Math Mathematica

08/28/22

i need help with physics
Two point charges q and 4q are at x=0 and x=L, respectively, and free to move. A third charge is placed so that the entire three-charge system is in static equilibrium.What is the x-coordinate of... more
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