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3 years ago

The value of g is greater at the poles than at the equator why

Physics

1 answer:

babunello [35]3 years ago

6 0

Answer:

because the gravitational pull is maximum at the poles and decreases as it comes down toward the equator.

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Do atoms have mass ?

MArishka [77]

There are not enough electrons in atoms to affect the total mass, so the total mass is just the weight of the protons and neutrons.

4 0

3 years ago

A student pulls a sled of mass m = 82.0 kg with a force of F = 160N, and the force makes an angle of θ = 15 degrees with respect

Minchanka [31]

Answer:B

Explanation:

Given

mass of sledge=82 kg

Force on sledge=160 N

degree $=15^{\circ}$

force has two component sin and cos

Normal reaction $=mg-F\sin \theta$

$N=82\times 9.8-160\sin 15$

$N=803.6-41.41=762.19 N$

8 0

3 years ago

Read 2 more answers

A tennis player player receives a shot with the ball (.06kg) travelling horizontally at 50.0 m/s and returns the shot with the b

ahrayia [7]

Let:

m- 0.0600Kg 
v1- +50.0 m/s 
v2- -42 m/s 

a) 

momentum1 - momentum2 = impulse 
p1 - p2 = Ft 
m(v1 + v2) = Ft 
Ft = 0.54 N-s 

b) 

Work is traditionally force times distance but an easy way to get through this one is to think logically and keep your units straight: 

The racket creates an overall velocity of 90 m/s for the ball: 

W=(Ft)*(V) 
W=0.54 N-s * 90 m/s 
W=48.6 N-m = 48.6 J

3 0

3 years ago

Although the reactions of the calvin cycle do not depend directly on light. True or False

Harlamova29_29 [7]

Answer:

True

Explanation:

The complete question is:

"Although the reactions of the Calvin cycle do not depend directly on light, they do not usually occur at night. True o False"

The Calvin cycle is also known as the Calvin-Benson cycle or as the CO₂ fixation phase in the photosynthesis process.

The Calvin cycle generates the reactions necessary to fix the carbon in a solid structure for the formation of glucose and, in turn, regenerates the molecules for the continuation of the cycle.

The Calvin cycle is known as the dark phase of photosynthesis, or the carbon fixation phase. It is called the dark phase because this cycle is not dependent on light like other parts that make up the photosynthesis process. But it uses the energy that is produced in the light phase of photosynthesis to fix carbon.

It can be said that it consists of or forms the second stage of photosynthesis, in which the carbon of the carbon dioxide that is absorbed is fixed.

So, the statement is true because the Calvin cycle uses the energy that is produced in the light phase of photosynthesis to fix carbon.

4 0

3 years ago

The addition of 9.0×105 J is required to convert a block of ice at -10 ∘C to water at 11 ∘C. i need help this is due in less tha

Law Incorporation [45]

The mass of the block of ice is 2.24 kg

Explanation:

The amount of heat needed for the whole process consists of three different amounts of heat:

$Q_1$ : the amount of heat needed to raise the temperature of the block of ice from $-10^{\circ}C$ to $0^{\circ}C$