3 years ago

Help please

Physics

1 answer:

Helga [31]3 years ago

6 0

I think the answer is 25J

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As pitch gets higher, wavelength gets ___________.

Ostrovityanka [42]

Answer:

Shorter

Explanation:

Waves become shorter and closer together as pitch increases

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3 years ago

. Emily pushes a 38.8 kg grocery cart of groceries by exerting a 76.0 N force on the handle inclined at 40.0 degrees below the h

Lana71 [14]

Answer:

a) $F_{x} = 58.2 N$

$F_{y} = 48.9 N$

b) a = 1.5 m/s²

Explanation:

a) The horizontal and vertical components of Emily's force can be found knowing the angle and the exerted force.

Since the handle is inclined at 40.0° below the horizontal we have:

$F_{x} = |F|*cos(\theta) = 76.0 N*cos(40) = 58.2 N$

$F_{y} = |F|*sin(\theta) = 76.0 N*sin(40) = 48.9 N$

b) The acceleration of the car can be calculated as follows:

$F_{x} = ma$

We used the horizontal component of the force because the cart is moving in that direction.

$a = \frac{F_{x}}{m} = \frac{58.2 N}{38.8 kg} = 1.5 m/s^{2}$

Hence, the acceleration of the car is 1.5 m/s².

I hope it helps you!

3 0

3 years ago

How much pressure is on the bottom of a pot that holds 20N of soup? the surface area of the pot is 0.05m2

fomenos

Answer:

400

Explanation:

Formula used in solution:

$P = \frac{F}{A}$

$P - pressure,\: F - force,\: A - area$

The given information:

$F = 20N$

$A = 0.05m^{2}$

Solution

$P = \frac{F}{A} = \frac{20}{0.05} = 20 * 20 = 400$

Answer:

$Pressure = 400 \: Pascals$

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Infrared, ultraviolet, and visible light are all part of the electromagnetic spectrum. The basic difference between them is thei

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Your Answer is Wavelength

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3 years ago

Help me answer this please

alexandr1967 [171]

density = mass / volume.

277/38 approx 280/40 approx 7

tin or zinc. use calculator

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3 years ago