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3 years ago

Which statement explains how weight is different from mass?

Physics

2 answers:

Leviafan [203]3 years ago

5 0

Answer:

weight is always greater than mass, weight is a measure of gravitational pull

Explanation:

Weight=mass x acceleration due to gravity

Therefore weight is always greater than mass. And weight is a measure of gravitational pull

Gennadij [26K]3 years ago

3 0

Answer:

D. Weight is a measure of gravitational pull.

Explanation:

on edgenuity 2020 :))

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A soccer ball is kicked from the ground with an initial speed v at an upward angle θ. A player a distance d away in the directio

LuckyWell [14K]

Answer:

U = √Rg/sin2θ

Explanation:

Using the formula for "range" in projectile motion to derive the average speed before the ball hits the ground.

Range is the distance covered by the body in the horizontal direction from the point of launch to the point of landing.

According to the range formula,

R = U²sin2θ/g

Cross multiplying we have;

Rg = U²sin2θ

Dividing both sides by sin2θ, we have;

U² = Rg/sin2θ

Taking the square root of both sides we have;

√U² = √Rg/sin2θ

U = √Rg/sin2θ

Therefore, his average speed if he is to meet the ball just before it hits the ground is √Rg/sin2θ

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3 years ago

As demonstrated by the Doppler Effect, why does sound increase in pitch as a sound source approaches you?

scZoUnD [109]

I think so it ans wold be d.because if the source approaches the observer more and more wavefront will pass and it get squeezed.so wavelength decreases and frequency increases.

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2 years ago

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According to Wien's Law, how many times hotter is an object whose blackbody emission spectrum peaks in the blue, at a wave lengt

scZoUnD [109]

Answer:1.55 times

Explanation:

Given

First wavelength $(\lambda _1)=450 nm$

Second wavelength $(\lambda _2)=700 nm$

According wien's diplacement law

$\lambda T=constant$

where $\lambda =wavelength$

T=Temperature

Let $T_1 and T_2$ be the temperatures corresponding to $\lambda _1 & \lambda _2$ respectively.

$\lambda _1\times T_1=\lambda _2\times T_2$

$\frac{T_1}{T_2}=\frac{\lambda _2}{\lambda _1}$

$\frac{T_1}{T_2}=\frac{700}{450}=1.55$

Thus object with $\lambda 450 nm$ is 1.55 times hotter than object with wavelength $\lambda =700 nm$

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3 years ago

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lapo4ka [179]

The chemical energy in Jay's body, to kinetic energy in the car

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3 years ago

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nekit [7.7K]

Your answer should be 4Hz

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3 years ago