02/13/23

Where will this image be located?
The equation connecting s, p, and f for a simple lens can be employed for spherical mirrors, too. A concave mirror with a focal length of 6 cm forms an image of a small object placed 11 cm in front... more
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02/13/23

A camera is equipped with a lens with a focal length of 21 cm. When an object 1.7 m (170 cm) away is being photographed, how far from the film should the lens be placed?
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12/12/22

physics lab questions
just answer the questionsExperiment: There are many household devices that manipulate light, and one of the most familiar is a magnifying glass. A magnifying glass bends light rays toward one... more
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12/08/22

Advanced E&M Physics questions
A sphere with radius R centered at the origin is made out of a linear dielectric material, with electric susceptibility Xe = 2, and has a uniform (free) surface charge density, of, on its surface.... more
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10/07/22

Find the distance of a frictionless chute when a toy come to rest.
A young girl pushes her toy hippo down a frictionless chute, starting at a height of 1.07 m above the bottom of the chute and with an initial speed of1.81 m/s. The toy animal emerges horizontally... more
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08/29/22

Solve this question
Find the length of RS if S is between R and T, the length of RS is 1/3 the length RT, RS=3x-3, and ST=2x+6.
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08/19/22

331 students went on a field trip 6 buses were filled and 7 students travels by car how many students were on each bus

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03/28/22

physics 1 moment of inertia.

An object rolls without slipping down a 2.03 m high incline. What is the moment of inertia of the object starting from rest if it has a final velocity of 6.1 m/s? Express the moment of inertia as a... more
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03/03/22

Nadine is solving for the distance(cm) of 2 charges. The 2 charges contain a magnitude of 400N between them. He also noted that they both have a charge of 39µC. What should be his computed answer?
Nadine is solving for the distance(cm) of 2 charges. The 2 charges contain a magnitude of 400N between them. He also noted that they both have a charge of 39µC. What should be his computed... more
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02/17/22

In a student laboratory exercise, the wavelength of a 68,300 Hz ultrasound wave is measured to be 0.512 cm. Find the air temperature (in K).
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02/11/22

Free fall Problems

A rock is dropped from a height of 43.5 ft. How fast is it moving when it hits the ground, and how far did it fall?
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02/11/22

Two ships leave port at the same time. One travels N28°W for 126 miles. The second travels S42°W for 150 miles. How far apart are the ships?

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02/10/22

Physics question

A spring with stiffness constant k = 72 N/m is compressed horizontally a total of 2.0 meters. A mass of 3 kg is placed in front of the spring and receives all of the spring's potential energy when... more
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02/08/22

What is the °C?
A machinist wishes to insert a brass rod with a diameter of 6 mm into a hole with a diameter of 5.993 mm. By how much would the machinist have to lower the temperature (in °C) of the rod to make it... more
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02/03/22

Chapter Four Question

Which has more kinetic energy: a 0.0018-kg bullet traveling at 409 m/s or a 5.0  107-kg ocean liner traveling at 11 m/s (21 knots)?Justify your answer. Ek-bullet  =   J Ek-ocean liner  =   J
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02/03/22

Is the triangle a right triangle? Explain your reasoning. (use description to answer)
A (3, 5), B (-2, 6), and C (0, 16) are the vertices of a triangle.
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02/03/22

Two point charges are placed on the 𝑥- axis: 0.800 μC at 𝑥=0 and −0.200 μC at 𝑥=50.0 cm. At what point(s), if any, on the 𝑥- axis is the electric potential equal to zero?
Please use SI units: 1uC = 1x10^-6 C, 1cm =1x10^-2 mI got -0.667m and 0.4m but it's not correct.
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02/03/22

Two charges  and  are fixed 1 m apart, with the second one to the right.
Two charges  and  are fixed 1 m apart, with the second one to the right. Find the magnitude and direction of the net force on a −2-nC charge when placed at the following locations: (a) halfway... more
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01/26/22

Write the equation of the line that passes through the points (-6,4) and (-3,-2).
Write the equation of the line that passes through the points
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12/12/21

The batterries in fig 1 and fig 2 have identical emf of V volts.

The batterries in fig 1 and fig 2 have identical emf of V volts. The power drawn from the battery in Fig. 1. is P1 watts. The power drawn from the battery in Fig. 2. is P2 watts. If P1/P2 = m/n... more
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12/04/21

A heat engine uses a heat source at 530 ∘C and has an ideal (Carnot) efficiency of 28 % .
A heat engine uses a heat source at 530 ∘C∘C and has an ideal (Carnot) efficiency of 28 %% .To increase the ideal efficiency to 47 %% , what must be the temperature of the heat source?Express your... more
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11/28/21

Physics problem
A meson, a subatomic particle having a mass 250 times that of an electron, is shot with a constant speed of 5.00 x 106 m/s into a region where an electric field causes a deceleration of 1.25 x... more
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11/26/21

An electric fan blade is rotating at a rate of 230 rev/min when it is subsequently switched off.
An electric fan blade is rotating at a rate of 230 rev/min when it is subsequently switched off. The blade then takes 37 seconds to come to rest.A. What is the initial angular speed of the fan... more
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11/12/21

Find the x coordinate of the center of mass of the bricks shown in the figure.(Figure 1)
brick 1= l/2brick 2= l/4brick 3= L
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11/04/21

Topic is Dynamic Fluids
In an old house, a loose window rattles whenever there's a wind blowing outside the house. If the air inside the house is still and at a pressure 101250 Pa, what is the pressure outside the house... more
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