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shtirl [24]
3 years ago
7

The acceleration due to gravity on the moon is 1.6 m/sec. what does a 10kg mass weigh on the moon

Physics
1 answer:
marysya [2.9K]3 years ago
6 0
Weight is a force so by F = ma, we have
weight = 10 x 1.6
= 16 N
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A plane drops a rubber raft to the survivors of a shipwreck. The plane is flying at a height of 1960 m and with a speed of 109 m
Korolek [52]

In this case the rubber raft has horizontal and vertical motion.

Considering vertical motion first.

We have displacement  s = ut +\frac{1}{2}at^2, u = Initial velocity, t = time taken, a = acceleration.

In vertical motion

    s = 1960 m, u = 0 m/s, a = 9.81 m/s^2

    1960 = 0*t+\frac{1}{2} *9.81*t^2\\ \\ t = 20 seconds

So raft will take 20 seconds to reach ground.

Now considering horizontal motion of raft

u = 109 m/s, t = 20 s, a = 0m/s^2

So s = 109*20+\frac{1}{2} *0*20^2 = 2180 m

So shipwreck was 2180 meter far away from the plane when the raft was dropped.

8 0
2 years ago
a ball is thrown horizontally from the roof of a building 45.0 m tall and lands 24.0 m from the base. What was the ball´s initia
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ball drops 45m under g=10m/s/s

45=1/2x10xt^2 ... application of kinematic equaion from rest

90/10=t^2

t=3

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4 0
2 years ago
How do the causes of surface and deepwater currents differ
zepelin [54]

The temperature is colder, and the water pressure is higher.

5 0
3 years ago
When a guitar string is plucked, in what direction does the wave travel? In what directions does the string vibrate?
Alex

Answer: the waves travel in an horizontal direction while the strings vibrate in a vertical direction.

4 0
2 years ago
Read 2 more answers
How is the magnetic force on a particle moving in a magnetic field different from gravitational and electric forces.
harina [27]

Answer:

The magnetic force on a free moving charge depends on the velocity of the charge and the magnetic field, direction of the force is given by the right hand rule. While gravitational depends on the mass and distance of the moving particle and electric forces depends on the magnitude of the charge and distance of separation.

Explanation:

The magnetic force on a free moving charge depends on the velocity of the charge and the magnetic field and direction of the force is given by the right hand rule. While gravitational depends on the mass and distance of the moving particle and electric forces depends on the magnitude of the charge and distance of separation.

The magnetic force is given by the charge times the vector product of velocity and magnetic field. While gravitational force is given by the square of the particle mass divided by the square its distance of separation. Also electric forces is given by the square of the charge magnitude divided by the square its distance separation.

4 0
2 years ago
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