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galina1969
5 days ago
7

Problem: An ice hockey player hits a puck of mass 0.15 kilograms with a force of 100 newtons in the horizontal direction. What i

s the acceleration produced by the force in the horizontal direction? Part A: Enter the variable symbol of the quantity you need to solve for. Use your keyboard and the keypad to enter your answer. Then click Done.
Physics
2 answers:
ValentinkaMS [2.4K]5 days ago
7 0
The acceleration of an object will always align with the direction of the resultant force acting upon it. Thus, we can find horizontal acceleration by examining the horizontal force applied, applying Newton's second law in its mathematical form: Force = mass * acceleration. Therefore, acceleration = force / mass. By inputting the numbers, we have a = 100 / 0.15, which results in a = 666.7 m/s². Consequently, the acceleration experienced by the hockey puck is 670 m/s².
serg [2.5K]5 days ago
3 0
For part A, the variable symbol you should enter is x for all my plato users. In part B, it would be F with a little x = ma with a little x. Part C would have a with a little x = F with a little x divided by m. Finally, part D would be a little x = 100 divided by 0.15.
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Consider 500 g of silver (atomic mass 107 g/mol). Assume that the temperature is high enough that equipartition applies. We heat
ValentinkaMS [2425]

Answer:

A. 2.57 K

Explanation:

Using the specific heat capacity,

Q = cmΔT........................ Equation 1

Where Q = Heat energy absorbed by silver, m = mass of silver, c = specific heat capacity for silver, ΔT = temperature change of the silver.

Rearranging gives ΔT as the subject of the equation

ΔT = Q/cm................... Equation 2

Provided: Q = 300 J, m = 500 g = 0.5 kg

Constant: c = 233 J/kg.K

Inserting values into equation 2 yields

ΔT = 300/(0.5×233)

ΔT  = 300/116.5

ΔT = 2.57 K

Therefore, the correct answer is A. 2.57 K

3 0
20 days ago
If you have an effusive personality, then it __________ of you. motor oil will __________ across the gravel if it spills out of
Keith_Richards [2263]
The first word in the blank is "pours out of you," while the second word to fill in is "diffuse." This implies that a person with an effusive nature tends to openly express their feelings, just as spilled motor oil will spread out over gravel.
6 0
28 days ago
A puck rests on a horizontal frictionless plane. A string is wound around the puck and pulled on with constant force. What fract
Ostrovityanka [2208]

Answer:

Explicación:

Definamos v como la velocidad lineal, ω como la velocidad angular e I como el momento de inercia del disco.

La energía cinética (lineal) = 1/2 mv²

La energía cinética rotacional = 1/2 I ω²

I = 1/2 m r² (donde m y r son la masa y el radio del disco)

La energía cinética rotacional = 1/2 x1/2 m r² ω²

= 1/4 m v² (v = r ω)

Energía total

= Energía cinética (lineal) + Energía cinética rotacional

= 1/2 mv² + 1/4 mv²

= 3/4 mv²

La relación de K E rotacional / K E total = 1/4 m v² / 3/4 mv²

= 1 /3

Por lo tanto, 1 /3 de la energía total se debe a la energía cinética rotacional.

3 0
24 days ago
The lights used by Mark Watley (played by Matt Damon) during the film The Martian seem to be Metal Halide lamps. Metal Halide la
Ostrovityanka [2208]

Answer:

As stated, the speed of light is being reached.

Explanation:

The speed of light can be expressed as:

C=\frac{E}{P}

Where E represents energy = 3.03x10⁻¹⁹J

P signifies momentum = 1.01x10⁻²⁷kgm/s

Substituting in:

C=\frac{3.03x10^{-19} }{1.01x10^{-27} } =3x10^{8} m/s

5 0
14 days ago
A toy car has a battery-powered fan attached to it such that the fan creates a constant force that is exerted on the car so that
serg [2593]

Method point C can help analyze the influence of the combined mass of the fan-car-object system on its acceleration

Additional insights

According to Newton's 2nd law, the acceleration experienced by an object is directly proportional to the total force acting on it while being inversely proportional to its mass.

∑F = m. a

\large{\boxed{\bold{a=\frac{\sum F}{m}}}

Where: F = total force in N

m = mass in kg

a = acceleration in m/s²

Below are the possible procedures:

A). Weigh the total mass of the system with a scale, start the fan, measure how far the system travels in a specific time using a stopwatch, and conduct multiple trials with varying objects added.

B) Measure the mass with a balance, turn on the fan, utilize a meter stick and stopwatch to assess the starting and ending speeds, and repeat multiple trials with assorted objects on the carriage.

C) Gauge the mass using a balance, attach a spring scale to the car's rear, quantify the force needed to keep the system stationary, and repeat with various objects.

D) Weigh the mass using a balance, activate the fan, time how long the system moves until the fan battery depletes, then perform various trials with different objects.

Among these options, we select point C as it provides the force measurement (F) from the scale and the mass with a balance to determine the impact of mass on acceleration.

<pConsidering the formula, we understand that an increase in mass results in decreased acceleration.

Discover more

Newton's laws of motion

Keywords: system acceleration, toy car, fan

4 0
28 days ago
Read 2 more answers
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