07/30/20

The voltage provided by the battery, VT, is 60.0 V. The resistances R1, R2, R3, and R4 are 560 Ω, 590 Ω, 410 Ω, and 320 Ω, respectively
diagram: https://ibb.co/GsbjgNrThe voltage provided by the battery, VT, is 60.0 V. The resistances R1, R2, R3, and R4 are 560 Ω, 590 Ω, 410 Ω, and 320 Ω, respectively(a) What is the total... more
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07/29/20

I need trig homework help!!
Two buildings on opposite sides of the street are 70 meters apart. From the top of the taller building, which is 200 meters high, the angle of depression to the top of the shorter building is 10... more
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07/29/20

math? I need help with geometry
Felix drew a scale drawing of the high school. The scale of the drawing was 8 millimeters = 4 meters. What scale factor does the drawing use?
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07/29/20

algebra question
the perimeter of a square is 140 less than its area. What is the perimeter of the square
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07/28/20

Physics Energy Question

A ray of light strikes a side of lucite ( = 1.50) prism at 40° as shown below. Find the angle that the light leaves the prism.The prism is a isosceles with a degree of 70 at the top.
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07/27/20

A ray of light strikes a side of a Lucite prism (n = 1.50) at an incident angle of 40.0° as shown in the diagram. Find the angle (labelled with ?) that the light leaves the prism
A ray of light strikes a side of a Lucite prism (n = 1.50) at an incident angle of 40.0° as shown in the diagram. Find the angle (labelled with ?) that the light leaves the prismdiagram:... more
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07/23/20

A 12.0kg box initially at rest slides from the top of a ramp. The top of the ramp is 6.0m above the ground. If the force of friction along the 11.0 m long incline is 5.0 N,

A 12.0kg box initially at rest slides from the top of a ramp. The top of the ramp is 6.0m above the ground.If the force of friction along the 11.0 m long incline is 5.0 N, what is the speed of the... more
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07/22/20

What is the temperature change?
A rain drop of mass 1.00 g is falling from the roof of 82.0m tall building and hits the surface of 100.0g of water contained in a glass standing on the ground.Ignore air resistance of the drop.... more
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07/22/20

Geometry question I still don’t understand. Please walk me through this.
Determine the exact total surface area of the hemisphere attached to the cylinder:from top to bottom, the cylinder is 30 cm, and the radius of the hemisphere is 4 cm.
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07/20/20

refraction of light
Light traveling from crown glass to water strikes the interface at a 51.0 degree angle to the SURFACE. What is the angle of refraction in water?hint notice you are given the angle from the SURFACE... more
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07/20/20

refraction of light

A ray of light travels from heavy flint glass to diamond. If the ray of light in the diamond makes an angle of 26.0 degrees to the normal, what is the angle of incidence in the heavy flint glass?... more
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07/20/20

refraction of light

hellllp me please anyone help Light travels from a region of air into a region of air, making an angle of incidence of 60 degrees. Which of the following best describes the path of the light as it... more
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07/20/20

What column of water can be supported by the atmosphere
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07/17/20

A student applies a force of 150 N on a 15 kg box by using a rope held at an angle of 35º above the horizontal. The coefficient of friction between the box and the surface is 0.90...
A student applies a force of 150 N on a 15 kg box by using a rope held at an angle of 35º above the horizontal. The coefficient of friction between the box and the surface is 0.90.a) Calculate the... more
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06/08/20

Imagine you build a model rocket with a mass of .75 kg. When launched, the engine produces a force of 9.3 N. What is the rocket's acceleration?
Imagine you build a model rocket with a mass of .75 kg. When launched, the engine produces a force of 9.3 N. What is the rocket's acceleration?
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06/08/20

4 N horizontal force is needed to keep an object that weighs 128 N moving at a constant speed.

A 4 N horizontal force is needed to keep an object that weighs 128 N moving at a constant speed. What is the coefficient of kinetic friction between the object and the surface? Do not include the... more
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06/08/20

Driving down the highway you see a truck that has a mass of 3250 kg.
Driving down the highway you see a truck that has a mass of 3250 kg. If you are told the force of friction is 1500 N, what is the coefficient of friction? What is the acceleration of the truck?
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06/07/20

How much force is needed to support a 106−kg iron anchor when it is submerged in seawater? (Hint: First find the anchor's volume.) Round your intermediate steps to three decimal places. N
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04/02/20

A roofer climbs to the top of a church steeple to determine its height. He drops his hammer and observes that it takes 2.0 sec. to strike the ground below. How high is the steeple?
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04/02/20

What is the net force acting on the block?

A 10 kg block experiences two external forces acting on it simultaneously. Force A has a magnitude of 29 N and points in the positive direction. Force B has a magnitude of 20 N and points in the... more
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03/18/20

AP Physics Question!!
A nucleus of mass 228 u, initialy at rest, undergoes alpha decay. If the alpha particle emitted has a kinetic energy 4.7 Mev, what is the kinetic energy of the recoiling daughter nucleus? Answer in... more
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03/18/20

A bullet is shot from a height of 5 meters with a velocity of 230 m/s. How long before the bullet hits the ground? How far will it travel?

Free Fall Kinematic Equations which may help with this problem.Vf=Vi + 9.8*t d=Vi*t + .5*9.8*t2 Vf2 = Vi2 + 2*9.8*d d= [Vi + Vf]*t/2
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03/18/20

A pitcher throws a softball from a height of 2.2 meters with a velocity of 13 m/s. How long before the ball hits the ground? How far will the ball travel?

Free Fall Kinematic Equations which may help with this problem.Vf=Vi + 9.8*t d=Vi*t + .5*9.8*t2 Vf2 = Vi2 + 2*9.8*d d= [Vi + Vf]*t/2
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03/17/20

Specific Heat Capacity
A 2KG block of copper at 100 degrees Celsius is put in a 5L pot of water at 20 degrees. Assuming no energy is lost to the surrounding environment, what is the final temperature of the mixture?
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03/17/20

How do I solve this problem?
A container is filled with an ideal gas to a pressure of 11.0 atm at 08C. What will be the pressure in the container if it is heated to 458C? At what temperature would the pressure be 6.50 atm? At... more
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