09/03/21

AP Physics 1 Projectile Motion Questions
Alex the clown likes bouncing on very large trampolines. If Alex jumps on the trampoline and lands 15.0 meters away after 1.30 seconds, what was the initial angle he left the ground.and... more
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08/30/21

Calculate distance

Amy and Mel are on a treasure hunt. They start at the same point and run in straight lines to each clue. They follow different routes based on their clues, which are not the same.Amy's first clue... more
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08/27/21

A laser beam is aimed...
A laser beam is aimed 15.95° above the horizontal at a mirror 11,648 away. It glances off the mirror and continues for an additional 8570. m at 11.44° above the horizon until it hits its target.... more
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08/26/21

TRUE OR FALSE: By reflecting (flipping) the graph of the parent function over the line y = x, you get the graph of the inverse.

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08/26/21

TRUE OR FALSE: By reflecting (flipping) the graph of the parent function over the x-axis, you get the graph of the inverse.

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08/26/21

I am struggling with how to solve these physics problems about speed and the EM spectrum, how do I solve these problems?
1a.You're caught running a red light on Hwy 317. Attempting to impress the skeptical patrol officer with your physics knowledge, you claim that you were traveling so fast that the red light (725... more
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08/25/21

Calculate the formula mass of each compound. Keep at least one decimal place in atomic masses from the periodic table. calcium chloride, CaCl2: amu nitric acid, HNO3: amu
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08/25/21

Need help with physics
The figure shows two displacement vectors A and B. Vector A points at an angle of 18.0 degrees above the x-axis and has an unknown magnitude. Vector B has an x component B_x=36.0m and has an... more
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08/24/21

A Norman window has the shape of a rectangle surmounted by a semicircle.
If the perimeter of the window is 24 ft, express the area A of the window as a function of the width x of the window.A(x) = ?
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08/24/21

If the points A, B, and C are collinear with B between A and C, and if AC = 16 and AB = 5, what is the length of line segment BC?
Please help me. Thank you have a good day.
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08/23/21

Interconversion of prefixed SI units
a machinist measures the length of a bolt the length is 61.61 cm. what is the length in millimeters? Write your answer as a decimal
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08/22/21

Trigonometry Question
A surfer is riding a wave with an amplitude of 6 feet and a period of 24 feet. If the wave completes a period in 8 seconds, what is the speed of the surfer? A. 192ft/s B. 24ft/s C. 3ft/s D. (1/3)ft/s more
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08/17/21

Calculate Molarity and Concentration
1. Calculate the molarity of the following solutions: a. A sample of solid KBr weighing 8.90 g is put in enough distilled water to give 200.0 mL of solution. b. A 24.9 g sample of NaCl is dissolved... more
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06/28/21

In a student laboratory exercise, the wavelength of a 44,300 Hz ultrasound wave is measured to be 0.788 cm. Find the air temperature (in K).
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06/23/21

Find the electric field at the center of the hole.
A small hole is formed in a homogeneously charged spherical shell. Find the electric field at the center of the hole.
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06/22/21

Mass on an Incline
A block with mass m1 = 8.6 kg is on an incline with an angle θ = 33° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients... more
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06/22/21

Find f. (Use C for the constant of the first antiderivative, D for the constant of the second antiderivative and E for the constant of the third antiderivative.)
f''''(t) = sqrt(t) - 6 cos (t), determine f(t)
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06/21/21

The vectors 𝑎⃗, 𝑏⃗⃗, 𝑐⃗ are as shown. a) Construct the vector 𝑎⃗ − 𝑏⃗⃗ + 𝑐⃗. b) If the vectors 𝑎⃗, 𝑏⃗⃗ are perpendicular and is |𝑎⃗|=4 and |𝑏⃗⃗|=3, determine|𝑎⃗+𝑏⃗⃗|
The vectors 𝑎⃗, 𝑏⃗, 𝑐⃗ are as shown. a) Construct the vector 𝑎⃗ − 𝑏⃗ + 𝑐⃗. b) If the vectors 𝑎⃗, 𝑏⃗ are perpendicular and is |𝑎⃗|=4 and |𝑏⃗|=3, determine|𝑎⃗+𝑏⃗|
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06/19/21

Find the Derivative of the function by using the rules of differentiation.
f(x)= 3/x3+6/√x +7f’(x)= ?
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06/19/21

Find the derivative of the function f by using the rules of differentiation.
f(x)= 9/4x^4/9 f’(x)=?
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06/18/21

Calculate the Kilojoules needed to heat 185 g of copper from 28°C to 194°C. Express your answer to three significant figures.

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06/18/21

Calculate the kilocalories needed to heat 170g of water from 15°C to 76°C. Express your answer to two significant figures
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06/18/21

What is the speed of Earth toward the bag just before the bag hits the ground?
A 7.33 kg laundry bag is dropped from rest at an initial height of 4.57 m. The acceleration of gravity is −9.81 m/s 2. Use the value 5.98 × 1024 kg as the mass of Earth. What is the speed of Earth... more
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06/18/21

Chemistry experiment
A sample of 0.385 g of crushed Alka-Seltzer produced 0.122g of carbon dioxide. Calculate the mass of NaHCO3 from the amount of carbon dioxide generated in grams. Provide the answer with three... more
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06/18/21

ENERGY QUESTION
 A cargo has a mass of 1.5 tons. The cargo was lifted and placed in the cargo hold. If the cargo gains 1469 J of potential energy, how high is the cargo hold?
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